发明名称 |
POWER SUPPLY CONTROLLING MEANS AND INFORMATION PROCESSING APPARATUS |
摘要 |
PROBLEM TO BE SOLVED: To reduce power consumption from a battery by maintaining a power- off operation without contradiction even though the operation of a microcomputer 13 is stopped or falls into an insufficient state. SOLUTION: A power supplying means such as a battery and a load is connected by a MOSFET switch which has a few leakage current and a little of forward voltage drop, interruption is controlled, and the connection and interruption control state is controlled while being held by using a latch composed of a CMOS circuit driven by the battery. The MOSFET switch is continuously interrupted and a stable operation can be obtained because the state can be held by resetting the latch even though a signal of a controlling part becomes unstable. Since the latch is a CMOS and the leakage current is extremely small, power consumption from the battery can be reduced when the power is turned off. |
申请公布号 |
JP2002149282(A) |
申请公布日期 |
2002.05.24 |
申请号 |
JP20000341546 |
申请日期 |
2000.11.09 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
NISHIMATSU HIDEO;HIROSAKA SHINOBU |
分类号 |
G06F1/26;H02J1/00;H02M3/00 |
主分类号 |
G06F1/26 |
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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