发明名称 |
Soft-switching power supply with auxiliary resonator |
摘要 |
A converter utilizing a multifilar transformer having its primary and auxiliary windings made simultaneously, a technique known as bifilar winding, provides high efficiency and low noise. The multifilar winding technique yields minimum leakage inductance between the windings and reduces the proximity effect to a minimum achievable using most well-known wires. The converter utilizes an improved soft-switcher topology which advantageously reduces the interwinding capacitance between the primary and auxiliary windings of the transformer. The topology includes a resonant LC circuit interposed in series with one leg of the auxiliary winding and the auxiliary switch. The other leg of the auxiliary winding is at ground. A controller is provided to control switch timing such that the converter optimizes switch loss and resonant pulse loss.
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申请公布号 |
US6359795(B1) |
申请公布日期 |
2002.03.19 |
申请号 |
US20000501941 |
申请日期 |
2000.02.10 |
申请人 |
SARNOFF CORPORATION;DAEWOO ELECTRONICS CO. LTD. |
发明人 |
AMANTEA ROBERT;PLETCHER TIMOTHY ALLEN;JOO JAE-HONG;YANG MIN-SUNG |
分类号 |
H04N5/63;H02M1/00;H02M1/42;H02M3/28;H02M3/335;H02M7/523;(IPC1-7):H02M3/335 |
主分类号 |
H04N5/63 |
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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