发明名称 |
OFF-LINE SWITCHER WITH BATTERY RESERVE |
摘要 |
OFF-LINE SWITCHER WITH BATTERY RESERVE An off-line switcher includes an auxiliary winding on the secondary side of the power transformer coupled by a power switch to a secondary voltage source in order to provide uninterruptible power to the output from either a primary AC or a secondary DC source. The power switches coupling both primary and secondary source voltages to the power transformers are driven at identical duty cycles by a common regulation control. Differing transformation ratios between primary and secondary sources of power define different operational ranges and determine flow of power based on the magnitude of the primary source of power. |
申请公布号 |
CA1314932(C) |
申请公布日期 |
1993.03.23 |
申请号 |
CA19870534962 |
申请日期 |
1987.04.16 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
ENG, WING K.;SCHROEDER, ROBERT E. |
分类号 |
H02J9/06 |
主分类号 |
H02J9/06 |
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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