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Posts Tagged ‘Current sensing’

App note: Precision current measurements on high-voltage powersupply rails

Sunday, March 3rd, 2019

Two methods for measuring current and what sense amplifier used are tackled in this app note from Texas Instruments. Link here (PDF) Current is a signal that can provide valuable insight into how a system is operating. Under defined conditions, the amount of current required to perform a task is...

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App note: Sub-1 V current sensing with the TS1001, A 0.8 V, 0.6 µA OP-AMP

Sunday, March 18th, 2018

Another TS1001 op-amp application from Silicon Labs on sensing nano currents. Link here (PDF) Current-sense amplifiers can monitor battery or solar cell currents, and are useful to estimate power capacity and remaining life. However, if the battery or solar source is a single cell, it’s difficult to find a low...

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App note: Current sensing in metering applications using a pulse current sensor and ST metering devices

Sunday, December 3rd, 2017

App note from STMicroelectronics about current sensing using Rogowski coil together with STPMxx metering device. Link here (PDF) This application note describes the benefits of a current sensing system for metering applications using STPMxx metering devices and a current sensor developed by Pulse Engineering Inc. (hereafter referred to as “Pulse...

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App note: Adjustable gain with a current sensing

Sunday, November 12th, 2017

Application note from STMicroelectronics for fine tuning gain on current sensing amplifier. Link here (PDF) This application note explains how to use current sensing amplifiers with series resistors on the sense inputs. This approach is especially useful for applications where the gain must be adjusted.

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App note: Redefining a new state-of-the-art in microampere current-sense amplifiers

Sunday, January 8th, 2017

Silicon Lab's TS1100 and TS1101 current sense amplifier's features discussed in this app note. Link here (PDF) Sensing and controlling supply current flow are a fundamental requirement in most all electronic systems from battery-operated, portable equipment to mobile or fixed-platform power management and dc motor control. High-side current-sense amplifiers (or...

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Current sensing with the Arduino

Friday, December 2nd, 2011

Luca made an Amp-meter using the ACS712 current sensor, and the Arduino. The ACS712 is a fully integrated, hall effect based, linear current sensor. It converts the current that passes through its input pins to a proportional voltage on an output pin. He connected the output pin to an analog...

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