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Jens's user avatar
Jens's user avatar
Jens's user avatar
Jens
  • Member for 2 years
  • Last seen this week
50 votes

How does the switch on the back of older computer power supplies work to vary between 110 and 220 volt input?

17 votes
Accepted

Is there an easy way to detect when a DC current flows, then close a path?

16 votes
Accepted

Can I drive a 5 V relay that requires 22 mA with an Arduino’s 20 mA continuous output?

14 votes
Accepted

AVR code disassembly - what is this code doing?

13 votes
Accepted

Looking for an indicator light for 60-330V

8 votes

Can SPI be used without implementing a modern MCU?

7 votes

Power MOSFETs IRFP260N and IRFP90N20D

7 votes

Circuit diagrams use unit prefix symbol as a decimal point

6 votes

In a DC voltage sensing circuit, what's the need for capacitors on input and output?

6 votes

Capacitive load of PSU

6 votes

Wiring two lamps so that the one disables the other

5 votes
Accepted

Two-cell lithium-ion battery balance charger with mid resistor

5 votes

DC motor speed control using SCR

5 votes
Accepted

Drive LED based on 12V pullup signal from amp board without dropping 12V signal?

5 votes
Accepted

Extending signal duration

5 votes

What types of mechanical failure that electronic components might face? Which are the most common?

5 votes

How many loads can I have on an open drain output?

4 votes

Variable Forward Voltage Diode

4 votes

Troubleshooting simple JFET preamplifier design

4 votes

CAN-Physical Layer PtP

4 votes

Different combinations for ADC input protection for measurements

4 votes

AC volt meter using an Arduino not giving steady reading

4 votes

Power transformer circuit using H-bridge doesn't work as expected

4 votes

Purpose of the diode in this comparator circuit

4 votes
Accepted

How to remove noise in ADC voltage measurement?

4 votes
Accepted

Daisy Chain on the AD7284 not working

4 votes
Accepted

How do I produce a steady DC voltage from a PWM supply?

4 votes

Bootstrap circuit for electromagnet drive or sense?

4 votes
Accepted

Is there any MPU where the watchdog has its own clock?

4 votes

compensation for flyback regulator with 431 and optocoupler

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