Solutions Search - Battery Management
Maximizing Cell Monitoring Accuracy and Data Integrity in Energy Storage Battery Management Systems
Jan 24th 2017
Grid-connected battery arrays are viable backup and carry-through power sources; application-specific measurement ICs which meet their unique and sophisticated requirements ensure reliable system performance.
The use of large-scale battery arrays for backup and carry-through energy storage is getting increasing attention, as ...
Passive Battery Cell Balancing
Aug 18th 2016
In the automotive and transportation marketplace, large battery stacks provide high output power without producing harmful emissions (i.e. carbon monoxide and hydrocarbons) associated with gasoline-powered combustion engines. Ideally, each individual battery in the stack equally contributes to the system. However, when ...
Active Battery Cell Balancing
Aug 18th 2016
With passive and active cell balancing, each cell in the battery stack is monitored to maintain a healthy battery state of charge (SoC). This extends battery cycle life and provides an added layer of protection by preventing damage to a battery cell due to deep discharging over overcharging. Passive balancing results in all ...
High-Voltage Amplifier Extends Coulomb Counter Range to +/-270V
Jan 22nd 2016
Introduction
A coulomb counter can measure charge that flows into or out of a battery. Small, dedicated devices such as LTC2941 or LTC2943 can directly interface with low to medium battery voltages, up to about 20V. You can extend the input operating range of the measurement circuit by using a high-voltage amplifier as a level ...
Determine Balancing Current for the LTC3305 Lead-Acid Battery Balancer
Apr 14th 2015
Design Note DN539: Introduction
The LTC®3305 is a lead-acid battery balancer that uses an auxiliary battery or an alternative storage cell (AUX) to transfer charge to and from individual batteries within a series-connected stack. The balancer controls external NMOS switches to sequentially connect the auxiliary battery ...
LTC3890 & LTC4000 60V Input DC/DC Power Supply with Battery Backup
Feb 27th 2015
Introduction
Circuitry presented in this article can be very useful for designing compact power supplies and extremely beneficial for system functioning in conditions of input power interruptions. The presented solution can be embedded into uninterruptible power systems or small standalone modules. It can be successfully employed ...
Frequently Asked Questions: LTC4010 & LTC40111 NiCd / NiMH Battery Charger
Oct 7th 2014
The LTC4010 is a complete NiMH/NiCd battery charger solution that requires no microcontroller or firmware programming. The LTC4010 includes charge initiation, monitoring, protection, charge termination and constant current control circuitry for a fast, autonomous charger solution. The IC can fast charge 1- to 16-cell NiMH ...
55V High Efficiency Buck-Boost Power Manager and Multi-Chemistry Battery Charger
Aug 27th 2014
Design Note DN531: Introduction
Today, battery chargers are expected to easily support a variety of battery chemistries and accept a range of voltage inputs, including wide-ranging solar panels. It is increasingly common for input voltage ranges to span above and below the output battery voltage, requiring both step-down and ...
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 ...
TechClip Videos – Real, Repeatable Performance
Jun 23rd 2014
With the advent of internet services like YouTube, product videos have become an important means for manufacturers to demonstrate the capabilities of their wares to customers, consumers and businesses alike. However, much like the products themselves, the quality and content of all product videos is not the same.
Inspired by ...
Techniques to Maximize Solar Panel Power Output
Feb 3rd 2014
Two recent articles, "Energy Harvesting With Low Power Solar Panels" and "Solar Battery Charger Maintains High Efficiency at Low Light", discuss how to efficiently harvest energy with low power solar panels. Both of these articles mention a concept known as maximum power, which in the context of solar panels is the ability ...
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 ...
Frequently Asked Questions: Wireless Power Transfer (WPT) & LTC4120
Oct 31st 2013
Q. What is wireless power transfer (WPT)?
A. Wireless Power Transfer (WPT) is the process where electrical energy is transmitted from a power source to an electrical load across an air gap using induction coils. These coils produce an electromagnetic field which sends energy from a charging base station (transmitter) to a coil ...
What to Do If You Can’t Find a Battery Charger IC for Your Application
Jun 25th 2013
Batteries are used in an application space that is broad and varied. To accommodate such a wide range of products, battery charger IC manufacturers have an almost equally broad and varied line-up of solutions. However, it is virtually impossible for companies, such as Linear Technology, to predict all of the clever ways ...
New IC Technology Boosts Performance of Large Lithium Ion Battery Packs
Nov 5th 2012
16kW-hr battery packs made from lithium ion cells are powering electric vehicles and storing grid energy. Measurement ICs like the LTC®6804 are used to extend the life and ensure the safety of the pack. The accuracy of the measurement IC can influence the cost of the system. The LTC6804 can measure cell voltages with less ...
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