The switching power supply attains sinusoidal input current even at a low level of the input voltage. In one embodiment, a node voltage appears between the input terminal and node. A grounded capacitor stores an intermediate voltage. A grounded inductor attains a current. One diode applies...http://www.google.fr/patents/US5736841?utm_source=gb-gplus-shareBrevet US5736841 - Switching power supply attaining sinusoidal input current and comprising series coupled 2-terminal switching block
Switching power supply attaining sinusoidal input current and comprising ...
