Panasonic TU-DSB3 SMPSU primary.
1 Attachment(s)
From an old sky box someone donated - only the PSU primary was traced as I
am interested in how they do MOSFET versions of the blocking oscillator style self oscillating chopper. The type of chopper is very handy if you want about 350 - 400V from 4.8 or 12V by reversing the function of the primary & one of the secondary windings. I've done this very successfully with the old bipolar choppers, but medium voltage/ high current transistors are not always easy to find - MOSFETs with these attributes are old news, there is however continual advancement in ever lower RDSon. |
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