Good day. I am working with a switch mode power supply HYS3C210-CS for a Class D amplifier of a MOnster HD active speaker which has the same theory of class d amps used in cars , the only difference is that it uses a switch mode power supply. The power supply had blown MOsfet (CS1N60) which damaged the PWM controller WS3252 and some resistors and ceramic caps. I had the values of the other blown parts except for the C25 (ceramic capacitor) as shown in encircled with red in the diagram I got in one forum. Can anybody suggest which SMD ceramic capacitor i can use. Thank you in advance.
I know of no car amp that uses that IC. Have you tried to contact the manufacturer to get the right value?
HI bro. It is an active speaker which has a switch mode power supply and a class D amp. The auxiliary side of the power supply is the one having a problem which is the circuit diagram as above. I just need the value of the C25 encircled in red in the schem. diagram.
i think should move this thread to Power Supplies section, which u can get more answers as your issue here is the SMPS itself, not the class D amp:
https://www.diyaudio.com/community/forums/power-supplies.67/
Btw, the cap act as a low pass filter for taking out spike when sensing mosfet current, assume that the unit is running at default 67kHz, try start with 1nF and adjust further if needed.
https://www.diyaudio.com/community/forums/power-supplies.67/
Btw, the cap act as a low pass filter for taking out spike when sensing mosfet current, assume that the unit is running at default 67kHz, try start with 1nF and adjust further if needed.
