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abdullah kahraman
  • Member for 10 years, 11 months
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42 votes
8 answers
38k views

Which configuration is better for pulling down an NPN transistor's base?

23 votes
1 answer
17k views

How to do pulling up or down correctly when interfacing a microSD card?

14 votes
1 answer
8k views

How to measure pulse width of an IR signal using an 8-bit PIC?

14 votes
3 answers
16k views

Where should I put the kickback diode in a transistor switch?

13 votes
10 answers
29k views

How to make IR proximity detector immune to the daylight?

12 votes
3 answers
8k views

Audio Amplifier PCB Design Tips

11 votes
6 answers
2k views

What is the reason my PIC16 multitasking RTOS kernel doesn't work?

9 votes
3 answers
4k views

SMPS PCB Design Critic

8 votes
4 answers
2k views

Can I create a backside "copper polygon" of the switch node in an SMPS?

7 votes
3 answers
3k views

How to implement simple stack switching in PIC12/16 cores?

7 votes
2 answers
10k views

Inductive kick-back voltage calculation

7 votes
3 answers
7k views

What is the reason this USB battery charge circuit will not work without a diode?

6 votes
2 answers
11k views

How to realize this transfer function with OP-AMPs?

6 votes
2 answers
508 views

What is this IC marked "1Y=61J"

6 votes
3 answers
3k views

What is causing the oscillation in the feedback loop of an SMPS?

6 votes
1 answer
4k views

How come a charge pump works without a reservoir capacitor?

6 votes
2 answers
834 views

Crosscoupling in SMPS PCB layout

6 votes
1 answer
10k views

Why do we need 100nF cap in the output of an SMPS?

5 votes
2 answers
6k views

How to configure the internal oscillator in a PIC16F616?

5 votes
1 answer
4k views

PORTB Interrupt On Change changes state unintentionally

5 votes
3 answers
2k views

Is a parallel capacitor needed in this application?

4 votes
2 answers
2k views

What is this PCB spark-gap on common-mode-choke for?

4 votes
2 answers
7k views

How to control X9C102 digitally controlled potentiometer?

4 votes
3 answers
5k views

How much capacitance do I need in the input of LM78L05

4 votes
1 answer
3k views

Are small valued capacitors effective in the device power input?

4 votes
2 answers
3k views

I2C - Cannot read temperature from TC74 with PIC16F887

3 votes
1 answer
2k views

Designing a low-pass filter

3 votes
2 answers
3k views

Interfacing a keypad with a microcontroller

3 votes
3 answers
6k views

How does this OP-AMP offset voltage measuring circuit work?

3 votes
4 answers
457 views

Is this noise in current amplifier feedback because of my PCB design?