NEWS
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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NEWS
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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5263
Views
2 Comments
NEWS
Use an LM317 as 0 to 3V adjustable regulator
Power supply

Use an LM317 as 0 to 3V adjustable regulator

by Vladimir Rentyuk @ edn.com: Most engineers know that they can use an inexpensive, three-terminal adjustable regulator, such as Fairchild Semiconductor’s LM317, as an adjustable regulator to only some necessary value of voltage, such as 36 or 3V. This value cannot be less than...

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5906
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PROJECT
15V to 60V – Three-Phase Brushless DC Motor Pre-Driver

15V to 60V – Three-Phase Brushless DC Motor Pre-Driver

The project presented here is a three-phase BLDC motor pre-driver. The project consists of 3x half-bridge IR2101 driver IC and 6 channel high current N-MOSFETS. The project can be configured as 3 independent half-bridges H-bridge for a brushed DC motor, or a single high current...

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1009
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0 Comments
NEWS
Flash an LED from AC-mains power
Led

Flash an LED from AC-mains power

LED technology is opening the door to a variety of high-power-illumination applications. The circuit in Figure 1 can let you know when ac power is available. To drive a power LED from the ac line requires a converter or a similar arrangement. In this circuit, a passive dropper greatly...

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1697
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0 Comments
NEWS
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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1865
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0 Comments
PROJECT
20A/40V Integrated Power Module for DC Brushless Motors (BLDC)

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...

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2904
Views
0 Comments
NEWS
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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2276
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1 Comments
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