Solutions Search - Energy Harvesting Solutions
Linear Technology manufactures a wide range of ultra-low power ICs targeted for energy harvesting applications. Power management products that convert energy from Vibration (Piezo), PhotoVoltaic (Solar) and Thermal (TEC, TEG, Thermopiles, Thermocouples) sources provide high efficiency conversion to regulated voltages or to charge batteries and super capacitor storage elements. Boost converters that operate from as little as 20mV or battery chargers with Maximum Power Point capability expand the possibilities for a wide variety of industrial automation and control, wireless sensor, transportation, automotive and building management applications.
For assistance in selecting tranducers, microcontrollers or wireless sensor nodes for your energy harvesting application, please refer to our Energy Harvesting Partners page
LTC3119 Photovoltaic Panel Input Lead-Acid Charger with Temperature Correction (1MHz)
Jan 18th 2017
The LTC®3119 is a high efficiency 18V monolithic buck-boost converter that can deliver up to 5A of continuous output current. Extensive feature integration and very low resistance internal power switches minimize the total solution footprint for even the most demanding applications. A proprietary 4-switch PWM architecture ...
LTC3130 Outdoor Solar Panel Powered, 600mA Supercapacitor charger Using MPPC
Aug 15th 2016
The LTC3130/LTC3130-1 are high efficiency, low noise, 600mA buck-boost converters with wide VIN and VOUT ranges. For high efficiency operation at light loads, BurstMode operation can be selected, reducing the quiescent current to just 1.6µA. Converter start-up is achieved from sources as low as 7.5µW. ...
LTC3130 12V Converter Uses MPPC Function to Maintain a Minimum VIN from a Current Limited Source
Aug 15th 2016
The LTC3130/LTC3130-1 are high efficiency, low noise, 600mA buck-boost converters with wide VIN and VOUT ranges. For high efficiency operation at light loads, BurstMode operation can be selected, reducing the quiescent current to just 1.6µA. Converter start-up is achieved from sources as low as 7.5µW. ...
LTC3106 Solar Harvester with Primary Battery Backup
Dec 2nd 2015
The LTC®3106 is a highly integrated, ultralow voltage buckboost DC/DC converter with automatic PowerPath management optimized for multisource, low power systems. At no load, the LTC3106 draws only 1.6μA while creating an output voltage up to 5V from either input source. ...
LTC3106 TEG Harvester with Secondary Battery Backup
Dec 2nd 2015
The LTC®3106 is a highly integrated, ultralow voltage buckboost DC/DC converter with automatic PowerPath management optimized for multisource, low power systems. At no load, the LTC3106 draws only 1.6μA while creating an output voltage up to 5V from either input source. ...
LTC3106 Portable Medical Device with Ambient Light Harvester or USB Powered Charging
Dec 2nd 2015
The LTC®3106 is a highly integrated, ultralow voltage buckboost DC/DC converter with automatic PowerPath management optimized for multisource, low power systems. At no load, the LTC3106 draws only 1.6μA while creating an output voltage up to 5V from either input source. ...
LTC3106 Remote Outdoor Solar Powered Harvester with Thin Film Battery Backup
Dec 2nd 2015
The LTC®3106 is a highly integrated, ultralow voltage buckboost DC/DC converter with automatic PowerPath management optimized for multisource, low power systems. At no load, the LTC3106 draws only 1.6μA while creating an output voltage up to 5V from either input source. ...
LTM8062 2A Solar Panel Power Manager with 8.4V Lithium Ion Battery Pack and 16V Peak Power Tracking
Jan 15th 2015
The LTM®8062/LTM8062A are complete 32VIN, 2A μModule® power tracking battery chargers. The LTM8062/ LTM8062A provide a constant-current/constant-voltage charge characteristic, a 2A maximum charge current, and employ a 3.3V float voltage feedback reference, so any desired battery float voltage up to 14.4V for the ...
LTC4121 Solar Panel Charging 4.2V Li-Ion Battery at 400mA
Jan 9th 2015
The LTC®4121 is a 400mA constant-current/constantvoltage (CC/CV) synchronous step-down battery charger. In addition to CC/CV operation, the LTC4121 regulates its input voltage to a programmable percentage of the input open-circuit voltage. This technique enables maximum power operation with high impedance input sources ...
LTC4079 Solar Panel to 2-Cell Li-Ion Charger with Differential Voltage Regulation
Oct 2nd 2014
The LTC®4079 is a low quiescent current, high voltage linear charger for most battery chemistry types including Li-Ion/Polymer, Lead-Acid or NiMH battery stacks up to 60V. The maximum charge current is adjustable from 10mA to 250mA with an external resistor. The battery charge voltage is set using an external resistor ...
LTC4079 Energy Harvesting Charger with Buck, Buck-Boost and LDO Supplies
Oct 2nd 2014
The LTC®4079 is a low quiescent current, high voltage linear charger for most battery chemistry types including Li-Ion/Polymer, Lead-Acid or NiMH battery stacks up to 60V. The maximum charge current is adjustable from 10mA to 250mA with an external resistor. The battery charge voltage is set using an external resistor ...
Doubling the LTC4120 Wireless Power Receiver for Higher Battery Charge Current
Aug 27th 2014
The LTC4120 is a constant-current/constant-voltage wireless receiver and battery charger. The charge current is programmed up to 400mA with an external resistor. If more than 400mA is required, then use two LTC4120 devices operating in parallel as shown in this schematic. In this case the two LTC4120 operate from one transmitter ...
LT8490 27.4V Solar Panel Lithium-Ion Polymer Battery Charger
Jun 23rd 2014
The LT®8490 is a buck-boost switching regulator battery charger that implements a constant-current constantvoltage (CCCV) charging profile used for most battery types, including sealed lead-acid (SLA), flooded, gel and lithium-ion. The device operates from input voltages above, below or equal to the output voltage and ...
LT3652HV 2A Solar Panel Power Manager With 7.2V LiFePO4 Battery and 17V Peak Power Tracking
Jun 23rd 2014
The LT3652HV is a complete monolithic step-down battery charger that operates over a 4.95V to 34V input range. The LT3652HV provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any desired ...
LT3652HV 1A Solar Panel Powered 3-Stage 12V Lead-Acid Fast/Float Charger
Jun 23rd 2014
The LT3652HV is a complete monolithic step-down battery charger that operates over a 4.95V to 34V input range. The LT3652HV provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any desired ...
LTC3331 Wireless Battery Charger
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 AC Line Powered 5V UPS
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 UPS System for Wireless Mesh Networks with Output Supercapacitor Energy Storage
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 Low Voltage Solar Harvester with Reduced Component Count (VIN < 6V)
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 Charging a Battery with Harvested Energy
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 Electric Field Energy Harvester
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 Higher Efficiency Battery-Powered Buck Regulator
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3331 Dual ±5V Power Supply
Jun 9th 2014
The LTC®3331 integrates a high voltage energy harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. A 10mA shunt allows simple charging of the battery with harvested energy while a low battery disconnect function protects ...
LTC3107 Remote Sensor Application Using Thermal Energy Harvesting to Extend Primary Battery Life
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 Thermal Harvester for Higher VIN Applications, Using External Rectifiers
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 Battery Life Extender Utilizing Scavenged 60Hz AC
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 Thermopile-Powered Battery Life Extender
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 3.6V Solar Powered Battery Life Extender Works from Indoor Lighting
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 TEG Powered Thermal Harvester with Primary Cell Life Extender
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LTC3107 Dual Input Harvester Utilizes Thermal and Solar Energy
Dec 19th 2013
The LTC®3107 is a highly integrated DC/DC converter designed to extend the life of a primary battery in low power wireless systems by harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (Thermoelectric Generators) and thermopiles. The step-up topology operates from input voltages ...
LT3652 Solar Battery Charger Maintains High Efficiency in Low Light
Oct 31st 2013
An important characteristic of any solar panel is that it achieves peak power output at a relatively constant operating voltage (VMP) regardless of illumination level (see Figure 2). The LT3652 2A battery charger exploits this characteristic to maintain a solar panel at peak operating efficiency by implementing input voltage ...
Solar & Piezo Energy Harvester and Battery Life Extender
Mar 18th 2013
The LTC3330 integrates a high voltage energy harvesting power supply plus a DC/DC converter powered by a primary cell battery to create a single output supply for alternative energy applications. The energy harvesting power supply, consisting of an integrated full-wave bridge rectifier and a high voltage buck converter, harvests ...
LTC3129 Solar Powered Converter Extends Battery Life in Low Power 3V Primary Battery Applications
Feb 4th 2013
The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels. ...
LTC3129 Energy Harvesting Converter Operates from a Variety of Weak Sources
Feb 4th 2013
The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels. ...
LTC3129 Solar Powered Converter with MPPC Charges Storage Capacitor
Feb 4th 2013
The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels. ...
LT3763: 70W, Solar Energy Harvester with Maximum Power Point Regulation
Oct 9th 2012
The LT3763 is a fixed frequency, synchronous, step-down DC/DC controller designed to accurately regulate output currents up to 20A. The average current mode control- ler will maintain inductor current regulation over a wide output voltage range from 0V to 55V. Output current is set by analog voltages on the CTRL pins and an ...
Solar Panel Input 6V to 36VIN to 14.4V at 4.5A Buck Boost Converter 4-Cell LiFePO4 Battery Charger
Jul 23rd 2012
The LTC4000-1 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers with maximum power point control. In contrast to the LTC4000, the LTC4000-1 has an input voltage regulation loop instead of the input current regulation loop. Features ...
LT3796 Solar Panel Driven SLA Battery Charger with Maximum Power Point Tracking
Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...
Solar-Powered 2.2V Supply and 1.8V LDO with Li Battery Backup and Run Threshold Set to Battery Minimum Voltage
Nov 4th 2011
The LTC3104 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current. The LTC3104 includes an integrated, adjustable 10mA LDO to power noise sensitive functions. Additionally, the LTC3104 includes an accurate RUN comparator, thermal overload ...
Solar-Powered 2.2V Supply with Li Battery Backup and Run Threshold Set to Battery Minimum Voltage
Nov 4th 2011
The LTC3103 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current. Additionally, the LTC3103 includes an accurate RUN comparator, thermal overload protection, a power good output and an integrated soft-start feature to guarantee that the ...
Solar Powered LED Driver
Jul 26th 2011
This figure shows an application for an LED driver supplied with a solar cell for an emergency LED torch. When the torch is off, the LTC3536 is in shutdown. The quiescent current of less than 1μA minimizes supercapacitor drain when the ambient light is no longer available.When the LED torch is switched on, the LTC3536 is turned ...
LTC3105 Single-Cell Photovoltaic NiMH Trickle Charger
Oct 15th 2010
The LTC3105 is a high efficiency step-up DC/DC converter that can operate from input voltages as low as 200mV. A 250mV start-up capability and integrated maximum power point controller (MPPC) enable operation directly from low voltage, high impedance alternative power sources such as photovoltaic cells, TEGs (thermoelectric ...
LTC3105 Thermoelectric Generator to 2.4V Super Capacitor Charger
Oct 15th 2010
The LTC3105 is a high efficiency step-up DC/DC converter that can operate from input voltages as low as 200mV. A 250mV start-up capability and integrated maximum power point controller (MPPC) enable operation directly from low voltage, high impedance alternative power sources such as photovoltaic cells, TEGs (thermoelectric ...
LTC3105 3.3V from Multiple Stacked-Cell Photovoltaic with Source Temperature Tracking
Oct 15th 2010
The LTC3105 is a high efficiency step-up DC/DC converter that can operate from input voltages as low as 200mV. A 250mV start-up capability and integrated maximum power point controller (MPPC) enable operation directly from low voltage, high impedance alternative power sources such as photovoltaic cells, TEGs (thermoelectric ...
LTC3105/LTC4071 2-Cell Solar Panel Li-Ion Battery Charger
Oct 5th 2010
This circuit shows a compact solar-powered battery charger using a LTC3105 as a boost converter and a LTC4071 as Li-Ion shunt charger. A 2-cell 400mW solar panel provides the input power to the LTC3105 to produce over 60mA of charge current in full sunlight. Maximum power point control prevents the solar panel voltage from ...
LTC4071 Simple Photovoltaic Charger
Oct 5th 2010
The LTC4071 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. A near-zero current low battery latching disconnect function protects even the lowest capacity batteries from deep discharge and potentially irreparable damage. The 550nA to 50mA operating current ...
Energy Harvester Operates from Small Temperature Differentials of Either Polarity
Jun 11th 2010
The LTC3109 is a highly integrated DC/DC converter ideal for harvesting surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators) and thermopiles. Its unique, proprietary autopolarity topology allows it to operate from input voltages as low as 30mV, regardless of polarity.
In this circuit, ...
LTC4070 Photovoltaic Charger with Extremely Low Leakage When Not Charging
Jan 29th 2010
A photovoltaic (PV) application for the LTC4070 is illustrated in this example. In this application, transistor Q1 has been added to further reduce the already low quiescent current of the LTC4070 to achieve extremely low battery discharge when the PV cells are not charging the battery. In long battery life applications, Q1 ...
LTC3109/LTC4070 Unipolar Energy Harvester Charges Battery Backup
Jan 29th 2010
The LTC3109 is a highly integrated DC/DC converter ideal for harvesting surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators) and thermopiles. Its unique, proprietary autopolarity topology allows it to operate from input voltages as low as 30mV, regardless of polarity. In this circuit, ...
LTC3588-1 5.4V to 2.5V Thermoelectric Energy Harvester
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1 5V to 16V Solar-Powered 2.5V Supply with Supercapacitor for Increased Output Energy Storage and Battery Backup
Jan 6th 2010
5V to 16V Solar-Powered 2.5V Supply with Supercapacitor for Increased Output Energy Storage and Battery Backup ...
LTC3588-1/LTC3388 Piezoelectric Energy Harvester and 1.2V Secondary Rail
Jan 6th 2010
The LTC3388-1/LTC3388-3 are high efficiency step-down DC/DC converters with internal high side and synchronous power switches that draw only 720nA typical DC supply current at no load while maintaining output voltage regulation.The EN pin can be used to activate the LTC3388-1/LTC3388-3. For instance, in this circuit the LTC3388-1 ...
LTC3588-1 3.3V Piezoelectric Energy Harvester Powering a Microprocessor with a Wireless Transmitter and 50mA Load Step Response
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1 AC Line Powered 3.6V Buck Regulator with Large Output Capacitor to Support Heavy Loads
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1 Dual (3.6V/1.8V) Rail Power Supply with Single Piezo and Automatic Supply Sequencing
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1/LTC4071 Piezoelectric Energy Harvester with Battery Backup
Jan 6th 2010
The LTC4071 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. A near-zero current low battery latching disconnect function protects even the lowest capacity batteries from deep discharge and potentially irreparable damage. The 550nA to 50mA operating current ...
LTC3588-1 Small Solution Size 1.8V Low Voltage Input Piezoelectric Power Supply
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1 3.3V Fluorescent (Electric Field) Energy Harvester
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3588-1 3.3V Piezo Energy Harvester with 9V Battery Backup
Jan 6th 2010
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3108 2.35V/2.2V Peltier-Powered (TEG) Energy Harvester for Remote Sensor Application
Nov 30th 2009
The LTC3108 is a highly integrated DC/DC converter ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators), thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. ...
LTC3108 2.2V/3.3V/3.3V Peltier-Powered (TEG) Energy Harvester for Wireless Remote Sensor Application
Nov 30th 2009
The LTC3108 is a highly integrated DC/DC converter ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators), thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. ...
LTC3108 Li-Ion Battery Charger and 2.2V LDO Powered by a Solar Cell with Indoor Lighting
Nov 30th 2009
The LTC3108 is a highly integrated DC/DC converter ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators), thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. ...
LTC3108 Dual TEG Energy Harvester (3.3V/2.2V) Operates from Temperature Differentials of Either Polarity
Nov 30th 2009
The LTC3108 is a highly integrated DC/DC converter ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators), thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. ...
LT3652 1A Solar Panel Powered 3-Stage 12V Lead-Acid Charger
Aug 18th 2009
1A Solar Panel Powered 3-Stage 12V Lead-Acid Fast/Float Charger; 1A Charger Fast Charges with CC/CV Characteristics Up to 14.4V; When Charge Current Falls to 0.1A Charger Switches to 13.5V Float Charge Mode; Charger Re-Initiates 14.4V Fast Charge Mode if Battery Voltage Falls Below 13.2V and Trickle Charges at 0.15A if Battery ...
LT3652 2A Solar Panel Power Manager With 7.2V LiFePO4 Battery and 17V Peak Power Tracking
Aug 18th 2009
The LT3652 is a complete monolithic step-down battery charger that operates over a 4.95V to 32V input voltage range. The LT3652 provides a constant-current/ constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any ...
LTC4357 Solar Panel Charging 12V Battery Through Ideal Diode to Prevent Back Feeding
Jul 30th 2007
In solar power systems, Schottky diodes are used to prevent discharge of the battery during hours of darkness. Unfortunately, the voltage drop and power dissipation of a Schottky diode can be quite large when used with high wattage solar panels, thus reducing the amount of power available to charge the battery. This circuit ...
LTC3588-1/LT3009 Piezoelectric 3.3V Power Supply with LDO Post Regulator for Reduced Output Ripple
Apr 30th 2007
The LTC3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. ...
LTC3625/LT1784 Solar Powered Super Capacitor Charger with MPPT
Oct 26th 2000
The input of the LTC3625 can also be driven by many widely available solar cells. In this circuit, MPPT (maximum power point tracking) is implemented by modulating the charge current based on the input voltage of the LTC3625. The LTC3625/LTC3625-1 are programmable supercapacitor chargers designed to charge two supercapacitors ...
Peak Power Tracking Buck Solar Charger Maximizes Efficiency
Sep 22nd 1997
Solar panels are gaining acceptance as a practical means of electricity generation in remote locations, but despite improvements in the technology, solar panels remain expensive. Much of the expense is the panel itself, where the size, and thus cost, of the panel rises with required power output. Maximizing panel performance ...
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