发明名称 |
Switching power supply with reduced harmonic network load |
摘要 |
Between the relatively small charge capacitor (CN) and a tap (A) on the prim. winding (W1) of the transformer (Tr), a choke (LH) is connected in series with a first diode (DH). The relatively large storage capacitor (CS) across the prim. winding and its switching transistor (T1) is decoupled from the smaller capacitor by a second diode (DN)> The series circuit generates an additional charging current for the larger capacitor which prolongs the current drawn from the mains (UN) during each half-cycle and reduces its amplitude. |
申请公布号 |
EP0700145(A3) |
申请公布日期 |
1996.08.28 |
申请号 |
EP19950113076 |
申请日期 |
1995.08.19 |
申请人 |
DEUTSCHE THOMSON-BRANDT GMBH |
发明人 |
ROTH, HARALD;RILLY, GERARD;MORIZOT, GERARD;RODRIGUEZ-DURAN, JOSE I.;SCHULZ, THOMAS |
分类号 |
H02M7/06;H02M1/00;H02M1/12;H02M1/42;H02M3/28;H02M3/335;H02M7/12;H02M7/217 |
主分类号 |
H02M7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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