Switched-mode power supply

Details Switched-mode power supply Switched-mode power supply

H - Electricity

02

M

H02M 1/00 (2007.01) H02M 3/335 (2006.01) H02M 7/00 (2006.01) H03K 17/0814 (2006.01) H05B 41/14 (2006.01) H03K 17/00 (2006.01)

Patent

CA 2452739

Switched-mode power supply having a series circuit of an electronic switch (T1) and the primary winding (W1) of a transformer (TX1). The power supply also has a switching snubber device in which, when the electronic switch (T1) is switched off, the energy in the primary winding (W1) is stored in a capacitor (C1). According to the invention, the switching snubber device has a further electronic switch (D1, T2) which remains switched on until the energy stored in the capacitor (C1) is fed back again into the transformer (TX1).

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