20A/40V Integrated Power Module for DC Brushless Motors (BLDC)
Motor

20A/40V Integrated Power Module for DC Brushless Motors (BLDC)

This project is based on STK984-090A which is a fully-integrated inverter with current rating 20A and supply voltage 40V DC. It has been designed to drive the Brushless DC Motors (BLDC) and permanent magnet synchronous motors (PMSM), the module works as output driver which include power...

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Multi-output Power Supply Based on LM2576HV-ADJ
Power supply

Multi-output Power Supply Based on LM2576HV-ADJ

This is a multi-output power supply based on LM2576HV-ADJ and LM317 IC. The power supply provides 3 outputs with input supply up to 55V DC. Output (O1) is adjustable up to 24V DC and load current of 2A, Output (O2) is adjustable to 1.2V-24V with load current up to 500mA and Output (O3)...

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Laptop Bench Power Supply with FAN controller
Power supply

Laptop Bench Power Supply with FAN controller

Zak Kemble build another great project. This time it's a bench power supply with a laptop brick input. The power supply needed sufficient cooling so he added a small Fan and a controller a the edge of the board. He writes: Many years ago (September 2009) I made a simple bench power...

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2x LiPO Battery to 12V and 5V Converter
Power

2x LiPO Battery to 12V and 5V Converter

This board provides 12V/200mA DC and 1.2V to 6V/500mA DC Adjustable output with input of 7.4V 2x LiPO batteries.  The board is a step up DC-DC Convert based on CS5171 and LM317 adjustable regulator. The Step up DC-DC converter provides 12V DC from 7.4V ( 2x LiPO batteries) and LM317...

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1.2V-32V @3A Variable Switching Regulator using LM317
Power supply

1.2V-32V @3A Variable Switching Regulator using LM317

The circuit presented here is based on LM317. Generally, LM317 is known as a linear regulator IC, but here the circuit operates as a switching regulator. This circuit operates by transferring energy from the input to the output by using a solid state switch. Power Efficiency of a...

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Dual Adjustable Regulated power supply 1.2V TO 37V DC
Power supply

Dual Adjustable Regulated power supply 1.2V TO 37V DC

This project is a solution to power up most of devices or projects requiring dual (+/-) adjustable power supply. The circuit is based on LM317 positive and LM337 negative voltage regulators. LM3X7 series of adjustable 3 terminal regulators is capable of supplying in excess of 1.5A...

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4673
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LM317 smooths but doesn’t regulate
Basic Electronics

LM317 smooths but doesn’t regulate

Michael Dunn discuss about a circuit that smooths ripple and noise but doesn't regulates the output. A well known power supply circuit is the capacitance multiplier. It doesn't regulate, but instead reduces ripple & noise while the output tracks at some fraction of the input...

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4398
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2 Comments
1.2V to 37V Regulated Power Supply – 1.2A
Power supply

1.2V to 37V Regulated Power Supply – 1.2A

This project provides a variable output power supply ranging from 1.2 to 37 V @ 1.5 A. Uses industry populer LM317 in TO3 package for delivering variable output voltage. Specifications  Input 40 VDC or 28V AC 2Amps Output : 1.2 to 37 V @ 1.5 A regulated low ripple DC...

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