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Solutions Search - Power Monitors

Dual Rail-to-Rail 100V Power Monitor Measures Current and Voltage with ±0.3% Accuracy

Oct 30th 2017
MILPITAS, CA and NORWOOD, MA – October 30, 2017 – Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC2992, a wide range I²C system monitor that monitors the current, voltage and power of two 0V to 100V rails without additional circuitry. The LTC2992 has flexible power ...

Press Release 

 

DC2561A - LTC2992 Demo Board:Dual Wide Range Power Monitor

Oct 24th 2017
Demonstration Circuit 2561A features the LTC®2992, a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. ...

Demo Board Linduino QuikEval System 

 

DC2518A - LTC2975 Demo Board: +/- 12V, +/- 48V Power Supply Management [requires DC1613]

Feb 21st 2017
The DC2518A is a demonstration system for the LTC®2975 Power System Manager that interfaces to various regulators. The board contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The four power supplies include linear and switching regulators for the purpose of demonstrating ...

Demo Board LTpowerPlay 

 

DC2574A-KIT - LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield

Sep 26th 2016
The DC2574A-KIT is a standalone power/energy monitor that allows users to evaluate the LTC®2947 power/energy monitor without a PC. This document describes how to quickly set up and operate the DC2574A-KIT; users should also refer to the DC2334 demo manual and LTC2947 data sheet for more details. The DC2574A-KIT includes ...

Demo Board Linduino 

 

LTC2947 ±30A Power/Energy Monitor with Integrated RSENSE - Video Product Brief

Chris Gobok - Product Marketing Engineer Sep 8th 2016
The LTC2947 is a high-precision power and energy monitor with an internal sense resistor supporting up to ±30A. Three internal No Latency Δ∑™ ADCs ensure accurate measurement of voltage and current, while highbandwidth analog multiplication of voltage and current provides accurate power measurement ...

Video 

 

30A Supply Monitor with Integrated 300μΩ Sense Resistor Simplifies Board Level Energy Measurements

Sep 6th 2016
Energy, Power, Charge, Current and Voltage Monitorwith I2C or SPI Interface MILPITAS, CA – September 6, 2016 – Linear Technology Corporation introduces the LTC2947 power and energy monitor for 0V to 15V DC supply rails. Most power and energy monitoring ICs use an external sense resistor to measure current. However, ...

Press Release 

 

I2C Primer: What is I2C? (Part 1)

Hamza Salman Afzal - Applications Engineer Sep 2nd 2016
Introduction: The Inter-Integrated Circuit (I2C) bus is a two wire serial interface originally developed by the Phillips Corporation for use in consumer products. It is a bi-directional bus that is easily implemented in any IC process (NMOS, CMOS, bipolar) and allows for simple inter-IC communication. Connections are minimized ...

Blog Post 

 

DC2334A - LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (req. DC590 or DC2026)

Sep 1st 2016
Demonstration circuit 2334A features the LTC®2947, a high precision power and energy meter with an internal 30A sense resistor. Three internal ΔΣ ADCs ensure accurate measurement of voltage (0V to 15V) and current (–30A to 30A), while high bandwidth analog multiplication of voltage and current provides ...

Demo Board Linduino QuikEval System 

 

30A Power and Energy Monitor with Integrated Sense Resistor

Aug 29th 2016
With more and more importance attributed to reduce energy consumption, power monitoring at various points of a system becomes mandatory. Precise power monitoring requires to measure the voltage drop over a current sense resistor as alternative concepts such as hall sensors or flux gate suffer from imperfections due to offset ...

Video 

 

DC2428A - LTC2975 Demo Board Set | LTM4644 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

Nov 20th 2015
The DC2428A is a two-board demonstration system for the LTC®2975 Power System Manager and LTM4644 quad 4A μModule regulator. The DC2382A contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The DC2363A contains four power supplies (LTM4644) that the LTC2975 configures ...

Demo Board Linduino LTpowerPlay 

 

MAX 10 NEEK Development Kit

Oct 5th 2015
The MAX 10 NEEK from Terasic is a full featured embedded evaluation kit based upon the MAX10 family of Altera FPGAs. It offers a comprehensive design environment with everything embedded developers need to create a processing based system. The MAX 10 NEEK delivers an integrated platform that includes hardware, design tools, ...

Circuit 

 

Linduino PSM

Michael Jones - Applications Engineer Mar 12th 2015
While many engineers use a dongle and tools to configure Power System Management devices via PMBus, a growing number of designs are adding Board Management Controllers, or connecting their PMBus to an existing microcontroller or application processer. At LTC, the dongle/tool option is comprised of a DC1613 and LTpowerPlay, and ...

Blog Post Linduino 

 

Understanding Power Monitor Accuracy

Mark Thoren - Staff Scientist
Hamza Salman Afzal - Applications Engineer
Feb 20th 2015
Measurement of a system’s power consumption during a final factory test (before deployment into the field) is a prudent part of a test program for any product. But there is an increasing emphasis to bring this functionality into the product itself for “run-time” monitoring of power, current, supply voltage, ...

Blog Post 

 

Four-Channel PMBus Power System Manager with Input Energy Monitoring for Comprehensive Power System Management

Wayne Porter - Design Engineer Jan 30th 2015
Systems with multiple power rails are becoming more efficient, but increasingly complex and difficult to design. In such systems, operating costs and complexity have shifted the power system design paradigm. To adapt, groups of power supplies need to be controlled and monitored to manage efficiency, to coordinate sequencing, ...

Video 

 

LTM4639 1.8V at 20A uModule Design with Input Current and Temperature Monitoring

Nov 24th 2014
The LTM®4639 is a complete 20A output high efficiency switch mode step-down DC/DC μModule (micromodule) regulator. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 2.375V to 7V, the LTM4639 supports an output voltage range ...

Circuit 

 

PMBus Digital Power System Manager Monitors Board Energy Consumption

Oct 28th 2014
MILPITAS, CA - October 28, 2014 - Linear Technology Corporation introduces the LTC2975, a 4-channel PMBus digital power system manager featuring current, power and energy monitoring of the intermediate bus input to point-of-load (POL) converters. Monitoring circuit board power and energy consumption is the first step in managing, ...

Press Release 

 

DC1785B - LTC2991 Demo board | I2C Temperature, Voltage, and Current Monitor (req. DC590 or DC2026)

Oct 13th 2014
Demonstration circuit 1785B features the LTC®2991, a high performance temperature, voltage and current monitor that uses an I2C interface for communication. It offers sub-millivolt voltage resolution, 1% current measurement and 1°C temperature accuracy. ...

Demo Board Linduino QuikEval System 

 

0V to 100V, 1% Accurate Energy Monitor Has 12-Bit Output

Sep 23rd 2014
MILPITAS, CA - September 23, 2014 - Linear Technology Corporation introduces the LTC2946, a high or low side charge, power and energy monitor for DC supply rails in the 0V to 100V range. An integrated ±0.4% accurate, 12-bit ADC and external precision time base (crystal or clock) enables measurement accuracy better than ±0.6% for ...

Press Release 

 

LTC2946 Power, Charge and Energy Monitoring in –48V System Using Low Side Sensing (1.5kHz I2C Interface)

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

LTC2946 Bidirectional Power Monitor with Energy and Charge Monitor in Forward Path

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

LTC2946 Dual Power, Charge and Energy Monitor Using Single Opto-Coupler for Galvanic Isolation and Blocking Diodes for Data Retention When Either Supply Fails

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

LTC2946 Power, Charge and Energy Monitor for Main Supply and Power Monitor for Secondary Supply with Single LTC2946

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

LTC2946 Power, Charge and Energy Monitor in –48V Harsh Environment Using INTVCC Shunt Regulator to Tolerate 200V Transients

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

LTC2946 6V to 300V High Side Power, Charge and Energy Monitor

Sep 18th 2014
The LTC®2946 is a rail-to-rail system monitor that measures current, voltage, power, charge and energy. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The current measurement common mode range of 0V to 100V is independent of the input supply. A 12-bit ADC measures load ...

Circuit 

 

DC2156A - LTC2946 Demo Board | Wide Range I2C Energy Monitor (req. DC590 or DC2026)

Sep 3rd 2014
Demonstration circuit 2156A features the LTC®2946 rail-to-rail system monitor that measures current, voltage, power, energy and charge. It features an operating range of 2.7V to 100V and includes a shunt regulator for operation from supplies above 100V to allow flexibility in the selection of input supply. The current measurement ...

Demo Board Linduino QuikEval System 

 

Altera Audio Video Development Kit, Stratix IV GX Edition

Jun 12th 2014
The Audio Video Development Kit, Stratix IV GX Edition, delivers a complete video and image processing development environment for design engineers. The kit facilitates the entire design process, from design conception through hardware implementation. This kit includes the Stratix IV EP4SGX230 FPGA development ...

Circuit 

 

Altera Stratix IV GX FPGA Development Kit

Jun 12th 2014
The Altera Stratix IV GX FPGA Development Kit delivers a complete system-level design environment that includes both the hardware and software needed to immediately begin developing FPGA designs. With this PCI-SIG-compliant board and a one-year license for Quartus II design software, you can develop and test PCI Express ...

Circuit 

 

Altera Stratix V GX FPGA Development Kit

Jun 11th 2014
The Altera® Stratix® V GX FPGA Development Kit provides a complete design environment that includes all the hardware and software you need to begin developing FPGA designs immediately. The development kit is RoHS compliant. You can use this development kit to do the following: Develop and test PCI Express® (PCIe®) designs ...

Circuit 

 

Altera Stratix IV E FPGA Development Kit

Jun 5th 2014
The Altera Stratix IV E FPGA Development Kit delivers a complete system-level design environment that includes both the hardware and software needed to immediately begin developing FPGA designs. You can use this development kit to develop and test memory subsystems consisting of DDR3 DIMMs, QDR II+, and RLDRAM ...

Circuit 

 

80V Wide Range I2C Power Monitor Simplifies Challenging System Monitoring Tasks

Mark Thoren - Staff Scientist Mar 20th 2013
Accurate monitoring of power is an essential part of a reliable and energy efficient (green) system design. Measuring voltage and current of low voltage (1.8V to 36V) supplies is straightforward, but higher voltages present additional challenges. In this video, we will show the LTC2945 wide range I2C system monitor. This device ...

Video 

 

DC1697A - LTC2945 Demo Board | Wide Range I2C Power Monitor (requires DC2026)

Jan 16th 2013
Demonstration circuit 1697A features the LTC2945. The LTC2945 is a rail-to-rail system monitor that measures current, voltage, and power. It features an operating range of 2.7V to 80V and includes a shunt regulator for supplies above 80V to allow flexibility in the selection of input supply. The current common mode measurement ...

Demo Board Linduino QuikEval System 

 

System Monitor with Instrumentation-Grade Accuracy Used to Measure Relative Humidity

Leo Chen - Applications Engineer Jan 1st 2013
Because much can be deduced about a physical system by measuring temperature, it is by far the most electronically measured physical parameter. Selecting a temperature sensor involves balancing accuracy requirements, durability, cost and compatibility with the measured medium. For instance, because of its low cost, a small-signal ...

Blog Post 

 

DC1338B - LTC2990 Demo Board | I2C Temperature, Current & Voltage Monitor (requires DC2026)

Dec 4th 2012
DC1338B - Demo Board for:LTC2990 - I2C Temperature, Voltage and Current Monitor ...

Demo Board Linduino QuikEval System 

 

Rail-to-Rail 80V Power Monitor Measures Current & Voltage with +/-0.75% Accuracy

Nov 7th 2012
MILPITAS, CA – November 7, 2012 – Linear Technology Corporation introduces the LTC2945, a wide range I²C system monitor that monitors the current, voltage and power of any 0V to 80V rail. In many cases, prior power monitoring solutions are limited to 3V to 5V supplies and monitor voltages less than 36V, requiring additional circuitry ...

Press Release 

 

Octal Voltage, Current & Temperature Monitor Provides Accurate Internal & Remote Measurements

Sep 1st 2011
MILPITAS, CA – September 1, 2011 – Linear Technology Corporation introduces the LTC2991, an 8-channel I²C temperature, voltage and current monitor for 3V and 5V systems. The LTC2991 is a highly integrated monitoring solution that incorporates a 14-bit ADC, 10ppm/°C voltage reference and I²C digital interface to provide submillivolt ...

Press Release 

 

LTC2990 I2C Temperature, Voltage and Current Monitor - Video Product Brief

Chris Gobok - Product Marketing Engineer Feb 23rd 2011
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...

Video 

 

Digital Monitor Provides Accurate Internal & Remote Temperature Measurements

Sep 22nd 2010
MILPITAS, CA - September 22, 2010 - Linear Technology Corporation introduces the LTC2990, an I2C temperature and voltage monitor for 3V and 5V systems. Many emerging, low voltage systems today rely on monitoring ICs to relay parametric data used in assessing overall system health and reliability. Traditional ADC implementations ...

Press Release 

 

Motor Protection/Regulation

Sep 3rd 2010
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...

Circuit 

 

Wet Bulb Psychrometer

Sep 3rd 2010
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...

Circuit 

 

LT2940 Power and Current Monitor - Video Product Brief

Kevin B. Scott - Senior Strategic Marketing Engineer Feb 11th 2010
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Video 

 

True Power & Current Monitor Enables Board & System-Level Optimization

Dec 14th 2009
MILPITAS, CA - December 14, 2009 - Linear Technology Corporation introduces the LT2940, a power and current monitor for 4V to 80V systems. The LT2940 provides the necessary circuits to accurately measure, monitor and control power in situations where both the current and voltage may vary due to supply voltage uncertainty, component ...

Press Release 

 

LT2940 28V Power to Frequency Converter

Nov 30th 2009
In some environments isolation is necessary for safety or noise reasons. The circuit above shows a power-to-frequency converter using the LT2940. The PMON output alternately charges and discharges a film capacitor, C5. When the voltage on C5 charges to the upper threshold on hysteretic comparator LTC1440, its output flips the ...

Circuit 

 

LT2940 Load Monitor Alarms Above 60W

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 AC Power and Current Monitor

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

12.5W PWM Heat Source

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 Adjustable 0W to 10W Load Box with UVLO and Thermal Shutdown

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 Motor Monitor with Circuit Breaker

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

Secondary-Side AC Circuit Breaker

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

120W Supply Monitor Includes ICC of LT2940

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 Fully Isolated AC Power and Current Monitor

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

LT2940 Wide Input Range 10W PWM Heat Source

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

DC1495A - LT2940| Power & Current Monitor

Nov 30th 2009
DC1495A - Demo Board for:LT2940 - Power and Current Monitor ...

Demo Board 

 

LT2940 1-Cell Monitor with Bottom-Side Sense

Nov 30th 2009
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit 

 

High-Side Power Monitor Measures Both Current and Voltage up to 80V

Feb 18th 2008
MILPITAS, CA – February 18, 2008 – Linear Technology Corporation introduces the LTC4151, a high side power monitor that measures current and input voltages from 7V to 80V. The LTC4151 utilizes an internal 12-bit ADC to continuously measure both high side current and input voltage to give a true power reading. The LTC4151 replaces ...

Press Release 

 

High Side Power Sensing with Onboard ADC and I2C

Jan 25th 2008
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. ...

Circuit 

 

Temperature Monitoring with an NTC Thermistor While Measuring Load Current and LTC4151 Supply Current

Jan 25th 2008
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand ...

Circuit 

 

DC1208A - LTC4151 Demo Board | 80V High Side Power Monitor, req. DC2026

Jan 25th 2008
Demonstration circuit 1208A features the LTC4151 high side power monitor that accepts input voltages from 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The monitors ...

Demo Board Linduino QuikEval System 

 

48V Power Monitor With Opto-Isolated Serial Interface

Jan 25th 2008
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand ...

Circuit 

 

Isolated Current and Voltage Monitor

Jan 25th 2008
The LTC4151-1/LTC4151-2 split the SDA line into SDAI (input) and SDAO (LTC4151-1 inverted output) or SDAO (LTC4151-2 output) for convenience of opto-coupling with a host controller that sits at a different ground level.When using opto-isolators with the LTC4151-1, connect the SDAI to the output of the incoming opto-coupler and ...

Circuit 

 

High Side Current, Input Voltage and Open Fuse Monitoring with a Single LTC4151

Jan 25th 2008
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand ...

Circuit 

 

LTC4151 Interfaces with Isolation Barrier in -48V ATCA Application

Jan 25th 2008
For negative applications, VIN is measured with respect to the GND pin and the GND pin does not have to be at 0V. The I2C isolation is required since the I2C pins are also referenced to the GND pin. For OV and UV, ADIN could be used to measure a voltage between 0V and 2.048V, and the value can be compared to an OV and/or ...

Circuit 

 

High Side Power Sensing with Onboard ADC and I2C

Jan 25th 2008
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand ...

Circuit 

 

High Voltage/Current and Temperature Monitoring

Jun 15th 2007
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...

Circuit 

 

Integrating Watt-Hour Meter

Mar 30th 2005
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

Circuit