User Kokachi

7 votes

2 answers

597 views

Ideal component to switch 84V DC?

asked Mar 1, 2018 at 14:47

6 votes

1 answer

989 views

Replace x2 capacitor with polyfilm? [closed]

asked Jun 7, 2018 at 7:30

6 votes

1 answer

890 views

Drop voltage a bit

asked Oct 14, 2017 at 9:17

5 votes

3 answers

2k views

Is this power supply universal input voltage? [closed]

asked Aug 13, 2021 at 14:35

4 votes

1 answer

3k views

Charge NiMH using TP4056

asked Sep 26, 2016 at 13:01

3 votes

2 answers

5k views

PIR sensor not triggering P2N2222

asked May 8, 2017 at 14:10

2 votes

3 answers

2k views

ATtiny13a base resistor for 2N2222A

asked Sep 5, 2017 at 6:07

2 votes

3 answers

834 views

Joule thief point

asked Oct 2, 2017 at 12:56

2 votes

2 answers

4k views

ATtiny13a capacitive power supply

asked Oct 4, 2017 at 11:50

2 votes

4 answers

7k views

PIR sensor led strip with N channel mosftet

asked May 7, 2017 at 9:12

2 votes

1 answer

257 views

CCTV cable power rating?

asked Feb 5, 2022 at 12:23

2 votes

1 answer

145 views

Pump undervoltage protection

asked Nov 18, 2022 at 19:37

1 vote

2 answers

354 views

Solar panel as light sensor to switch a battery and LED circuit

asked Nov 10, 2022 at 17:28

1 vote

2 answers

2k views

Replace DPDT relay with Mosfet?

asked Apr 9, 2018 at 6:03

1 vote

3 answers

2k views

Modify generic Chinese LED driver circuit

asked Mar 15, 2020 at 19:11

1 vote

2 answers

2k views

Convert 3v solar cell to 1.5v

asked Mar 30, 2015 at 17:17

1 vote

1 answer

437 views

8 led beacon without microcontroller

asked May 15, 2017 at 12:18

1 vote

1 answer

134 views

regular wall switch on off led dimmer

asked Jun 29, 2017 at 3:42

1 vote

1 answer

3k views

Replace potentiometer with resistor

asked Aug 26, 2017 at 18:09

1 vote

2 answers

771 views

433MHz receiver compatibilty

asked Jan 30, 2018 at 18:48

0 votes

3 answers

2k views

X2 capacitor voltage?

asked Feb 9, 2018 at 18:56

0 votes

2 answers

1k views

Replacement Triac

asked Jan 1, 2018 at 7:16

0 votes

1 answer

751 views

LED bar graph driver with 12 pins? [closed]

asked Jan 9, 2018 at 18:48

0 votes

2 answers

266 views

Crude LM7809 9V NiMH charger

asked May 12, 2017 at 18:15

0 votes

2 answers

311 views

Rheostat replacement resistors with relays

asked Aug 27, 2017 at 14:42

0 votes

2 answers

3k views

Two or more Diac Triac dimmers in parallel

asked Aug 27, 2017 at 15:42

0 votes

1 answer

972 views

Help me understand and fix this dimmer circuit

asked Aug 29, 2017 at 13:48

0 votes

1 answer

978 views

PC fan DC adapter power requirement? [duplicate]

asked Jun 1, 2015 at 9:56

0 votes

1 answer

389 views

MPPT buck converter vs Ordinary buck converter?

asked Mar 22, 2020 at 14:33

0 votes

1 answer

237 views

Modify LED circuit with a MOSFET

asked May 24, 2020 at 9:11

Stack Exchange Network

34 Questions

Ideal component to switch 84V DC?

Replace x2 capacitor with polyfilm? [closed]

Drop voltage a bit

Is this power supply universal input voltage? [closed]

Charge NiMH using TP4056

PIR sensor not triggering P2N2222

ATtiny13a base resistor for 2N2222A

Joule thief point

ATtiny13a capacitive power supply

PIR sensor led strip with N channel mosftet

CCTV cable power rating?

Pump undervoltage protection

Solar panel as light sensor to switch a battery and LED circuit

Replace DPDT relay with Mosfet?

Modify generic Chinese LED driver circuit

Convert 3v solar cell to 1.5v

8 led beacon without microcontroller

regular wall switch on off led dimmer

Replace potentiometer with resistor

433MHz receiver compatibilty

X2 capacitor voltage?

Replacement Triac

LED bar graph driver with 12 pins? [closed]

Crude LM7809 9V NiMH charger

Rheostat replacement resistors with relays

Two or more Diac Triac dimmers in parallel

Help me understand and fix this dimmer circuit

PC fan DC adapter power requirement? [duplicate]

MPPT buck converter vs Ordinary buck converter?

Modify LED circuit with a MOSFET