Re: Cooler Offline smps Bridge Rectification

From: D from BC <myrealaddress@xxxxxxxxx>
Date: Sun, 29 Apr 2007 08:06:37 GMT

On Sat, 28 Apr 2007 19:57:28 GMT, D from BC <myrealaddress@xxxxxxxxx>
wrote:

My offline (nonisolated) smps bridge rectifies the 120VAC line voltage
prior to DC to DC conversion.
In my app, the bridge rectifier wastes about 2Watts and needs heat
sinking..
What can I do to improve the efficiency?
Maybe with active rectification using mosfets or IGBTs?
But wouldn't that be really tricky?
Are there modules for offline power bridge rectification?
D from BC

Has anyone tried a SiC bridge rectifier composed of parallel diodes?
D from BC
.

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Re: Cooler Offline smps Bridge Rectification
... the bridge rectifier wastes about 2Watts and needs heat ... sinking.. ... Has anyone tried a SiC bridge rectifier composed of parallel diodes? ...
(sci.electronics.design)
Re: Cooler Offline smps Bridge Rectification
... the bridge rectifier wastes about 2Watts and needs heat ... sinking.. ... What can I do to improve the efficiency? ... A bridge rectifier rated for a higher current will help by decreasing the ...
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Re: Cooler Offline smps Bridge Rectification
... the bridge rectifier wastes about 2Watts and needs heat ... sinking.. ... What can I do to improve the efficiency? ... diodes so that their resistance matters. ...
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