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IS NEW TECHNOLOGY ? half bridge soft switch power work in P

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alphi

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at present,most half bridge soft switch power work in PFM,not PWM,and must have some load. such as MC34066¡¢UC1864 etc,
now I want to design one soft switch power(ZVC or ZVS) work in PWM,and output current can modulate from 0A to full load.but I can not find any smps IC or example circuit working in PWM/0-load.

who can send me some reference for it.
thank you very much!
 

alphi

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who can help me?
 

alphi

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hi,friend ,thank you .

but IT web also have not PWM soft switch in half bridge, that only have PFM zvs and ZCS
 

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