发明名称 |
REGULATED DC-TO-DC CONVERTER FOR VOLTAGE STEP-UP OR STEP-DOWN WITH INPUT-OUTPUT ISOLATION |
摘要 |
A closed-loop regulated dc-to-dc converter employing an unregulated two-winding inductive-energy storage converter is provided by using a magnetically coupled multivibrator acting as a duty-cycle generator to drive the converter. The multivibrator is comprised of two transistor switches and a saturable transformer. The output of the converter is compared with a reference in a comparator which transmits a binary zero until the output exceeds the reference. When the output exceeds the reference, the binary output of the comparator drives transistor switches, via a dc isolation circuit, which control the multivibrator to turn the multivibrator off. The multivibrator is unbalanced so that a predetermined transistor will always turn on first when the binary feedback signal becomes zero.
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申请公布号 |
US3771040(A) |
申请公布日期 |
1973.11.06 |
申请号 |
USD3771040 |
申请日期 |
1972.04.18 |
申请人 |
NAT AERONAUTICS AND SPACE ADMINISTRATION,US |
发明人 |
FLETCHER J,US;FENG S,US;WILSON T,US |
分类号 |
H02M3/335;H02M3/337;(IPC1-7):H02M3/32 |
主分类号 |
H02M3/335 |
代理机构 |
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