50KHz
The motherboard also has an LC filter which adds to the output capacitors of the HV power supply (47uF)+2.2uH+47uF. For the BIAS output, the LC is (10uF)+2.2uH+10uF. This allows you to filter out what might be coming from the Meanwell IRM power supply.
Stef.
The motherboard also has an LC filter which adds to the output capacitors of the HV power supply (47uF)+2.2uH+47uF. For the BIAS output, the LC is (10uF)+2.2uH+10uF. This allows you to filter out what might be coming from the Meanwell IRM power supply.
Stef.
Hello,
I tried another heatsink with a sheet of Thermalfilm for the MOSFET. I find it more effective than the Chinese heatsink. The temperature stabilizes at 48/49°C for a room temperature of 27°C. Tested à 350V/61mA.
There's more space between the heatsink and the transformer.
Regards,
Stef.
Same Sky HSE-B2111-038
Size: 25x16x11
Mouser: https://www.mouser.fr/ProductDetail/490-HSE-B2111-038
DigiKey: https://www.digikey.fr/fr/products/detail/same-sky-formerly-cui-devices/HSE-B2111-038/7319795
I tried another heatsink with a sheet of Thermalfilm for the MOSFET. I find it more effective than the Chinese heatsink. The temperature stabilizes at 48/49°C for a room temperature of 27°C. Tested à 350V/61mA.
There's more space between the heatsink and the transformer.
Regards,
Stef.
Same Sky HSE-B2111-038
Size: 25x16x11
Mouser: https://www.mouser.fr/ProductDetail/490-HSE-B2111-038
DigiKey: https://www.digikey.fr/fr/products/detail/same-sky-formerly-cui-devices/HSE-B2111-038/7319795
Attachments
I found others that fit at Fischer Elektronik, the best of which goes down to 15 K/W.
Fischer Elektronik UK14-25-SA-220
Fischer Elektronik SK 431
Fischer Elektronik SK 13 35 SA 220
Fischer Elektronik ICK 35 SA
I added them to the schematic.
Fischer Elektronik UK14-25-SA-220
Fischer Elektronik SK 431
Fischer Elektronik SK 13 35 SA 220
Fischer Elektronik ICK 35 SA
I added them to the schematic.
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