All Questions
4
questions
0
votes
1
answer
86
views
Switching power supply has high ripple voltage no matter how many capacitors are added
I'm designing a board that uses a Texas Instruments TLV62569DBVR (datasheet here) to convert 5V input from a USB power supply to 3.3 volts to be used to power an ESP32-WROOM-32D-N4. I am having lots ...
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1
vote
1
answer
693
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Flyback converter design using UC3843
I am designing a offline power supply which will 24 V as output with 2.5 A. I found UC3843 as better option. I used TI we bench tool to design my power supply. This is the schematic I got from it. The ...
- 11
1
vote
0
answers
554
views
PWM Dimming Causes Flickering
I designed a 24V PWM dimmer. Basically, it drives a 24V-LED-strip with low-side switching using a MOSFET driven by a 1-kHz-PWM having 1-100% duty-cycle.
There are no problems when the circuit is ...
- 36k
4
votes
1
answer
2k
views
Ringing/Noise on smps output while BJT turns on
I am trying to build a 4watt SMPS with 5v output.The design uses BJT switching in quasi-resonant mode. Though I could get the 5V output, I am observing ringing in the output which is increasing the ...
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