Title:
CHARGING PUMP CIRCUIT
Document Type and Number:
Japanese Patent JPS6261420
Kind Code:
A
Abstract:
This charge pump circuit comprises a capacitor connected with a first terminal thereof to a reference voltage point through a first switch element and with a second terminal thereof to a switching section. The switching section, which is arranged between a positive supply voltage line and the ground, is controlled so as to alternately and selectively connect the second terminal of the capacitor to the positive supply and to ground. The first terminal of the capacitor is further connected to the gate of the MOS transistor to be driven. During operation the switch section is controlled so as to alternately charge the capacitor and allow transfer of the charge of the capacitor to the MOS transistor gate, thereby achieving a fast charging of the MOS transistor and a low circuit dissipation in the DC mode.
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Inventors:
KARURO CHIINI
KURAUDEIO DEIATSUTSUI
DOMENIKO ROTSUSHI
KURAUDEIO DEIATSUTSUI
DOMENIKO ROTSUSHI
Application Number:
JP21051786A
Publication Date:
March 18, 1987
Filing Date:
September 05, 1986
Export Citation:
Assignee:
SGS MICROELETTRONICA SPA
International Classes:
H03K5/02; H03K5/153; H03K17/04; H03K17/0412; H03K17/042; H03K17/06; H03K17/687; H03K19/017; (IPC1-7): H03K5/153; H03K17/04; H03K17/06; H03K17/687
Domestic Patent References:
| JPS4998954A | 1974-09-19 | |||
| JPS5683962A | 1981-07-08 |
Attorney, Agent or Firm:
Fukami Hisaro