H - Electricity – 02 – M
Patent
H - Electricity
02
M
321/27, 321/7, 3
H02M 3/315 (2006.01) H02J 3/34 (2006.01) H02M 3/337 (2006.01) H02M 7/155 (2006.01)
Patent
CA 2017062
A switching power supply apparatus includes a high frequency switching power supply circuit (1) supplied with a direct current voltage from a direct current power source (E). Switching elements (S1, S2) included in the high frequency switching power supply circuit alternately become conductive in response to a control pulse, whereby high frequency power is generated. The high frequency power is transferred through an isolation barrier (45) formed of capacitors (C1, C2) to a frequency converting circuit (7) wherein the high frequency power is frequency-converted into direct current power and then supplied to a load circuit (4). Accordingly, a conventionally used transformer is not required, so that no iron loss nor copper loss is generated in a isolation circuit (20), which allows the apparatus to be made more compact and lighter.
Nakano Hirotami
R. William Wray & Associates
LandOfFree
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