发明名称 |
Flash apparatus and camera having the flash apparatus |
摘要 |
In a flash apparatus, when it is determined that the oscillation of a voltage boosting circuit is stopped before it is controlled so as to stop, it is possible to continuously charge a voltage to a main capacitor by causing the voltage boosting circuit to continue oscillation by providing a control circuit for oscillating the voltage boosting circuit again. Further, the flash apparatus includes a charged current detecting circuit for detecting the current charged in a main capacitor using an auxiliary power source as a power source. The charged current detecting circuit is simply arranged with a passive element for bypassing a part of the current charged in the main capacitor from a loop through the above-mentioned auxiliary power source.
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申请公布号 |
US2002047626(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010841197 |
申请日期 |
2001.04.24 |
申请人 |
ODAKA YUKIO;ICHIMASA SHOJI |
发明人 |
ODAKA YUKIO;ICHIMASA SHOJI |
分类号 |
H02J7/00;H02M3/335;H02M3/337;H05B41/32;(IPC1-7):H02J1/00;H05B37/02 |
主分类号 |
H02J7/00 |
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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