Posts Tagged ‘voltage regulator’

App note: Current-sense amplifier doubles as a high common mode instrumentation amplifier

Sunday, December 10th, 2017

Application note from Maxim intergrated on utilizing a boost converter and a current-sense amplifier to form a regulator that derives +5V from -48V without isolation. Link here (PDF) Instrumentation amplifiers (IAs) are used where gain accuracy and dc precision are important, such as in measurement and test equipment. The downside...

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Teardown of an ATVR-1000D AC voltage regulator

Monday, November 27th, 2017

Kerry Wong did a teardown of an ATVR-1000D automatic AC voltage regulator and discussed how different types of AC regulators work: The ATVR-1000D utilizes a motor to drive the wiper of a autotransformer (Variac), the servo motor can be driven in either direction depending on the output from the OpAmp...

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App note: Choose the right voltage regulator to extend battery life in wearables

Sunday, February 5th, 2017

App note from Maxim Integrated on wearable devices demanding reduced quiescent and shut down currents when in idle and in sleep mode in a voltage regulator. Link here Wearable devices have emerged as the next big market opportunity in the electronics industry. Smart watches are among the most popular wearable...

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Mini adjustable voltage regulator

Tuesday, October 21st, 2014

MagicTK made this mini adjustable voltage regulator, instructables here: The minimum output is based on the voltage regulator's internal reference voltage (look at the datasheet formula), and the maximum output is based on the batteries connected and how much energy they have left (as well as the maximum specified in the...

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TI intros LM5017 100 V, 600 mA synchronous buck regulator

Tuesday, February 7th, 2012

TI has introduced the LM5017 buck regulator. The LM5017 is a 100 V, 600 mA synchronous step-down regulator with integrated high side and low side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5017 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The...

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