发明授权
- 专利标题: Integrated high voltage generating system
- 专利标题(中): 集成高压发电系统
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申请号: US457167申请日: 1989-12-26
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公开(公告)号: US4979088A公开(公告)日: 1990-12-18
- 发明人: Hirozumi Misaki , Yasuyuki Okada
- 申请人: Hirozumi Misaki , Yasuyuki Okada
- 申请人地址: JPX Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX63-828257 19881226
- 主分类号: H02M3/07
- IPC分类号: H02M3/07
摘要:
The invention discloses an integrated high voltage generating system possessing a charge pump for boosting stepwise the potential of an output node sequentially from the value of a first supply voltage to the value of a second supply voltage in synchronism with the clock pulses applied through a capacitor, wherein the second supply voltage is supplied to the gate electrode of the output MOS transistor connected between the output node of the charge pump and the output terminal. In this constitution, since the gate potential of the output MOS transistor is fixed at the valve of the second supply voltage, the potential fluctuation due to clock pulses does not appear on the output voltage taken out of the output terminal.