Title:
HIGH VOLTAGE SWITCHING CIRCUIT
Document Type and Number:
Japanese Patent JP3025398
Kind Code:
B2
Abstract:
PURPOSE: To obtain a high voltage switching circuit which gives a certain boosted voltage over a wide supply voltage range.
CONSTITUTION: This high voltage switching circuit is provided with a reference clock generating circuit 1, a clock drive circuit 2, a reference voltage generating circuit 4, a path gate circuit 3 to which the reference voltage is applied and which generates an amplitude limited clock signal, and a high voltage switch circuit 7 which is pumped by the clock signal. Since clock signals CP and CPB which have a high drive power and have the amplitudes limited so as not to exceed a certain voltage in the case of a high supply voltage are used as the clock signal which drives the high voltage switching circuit 7, the stable and certain boosted voltage can be generated over a wide supply voltage range, and further, the high voltage switching circuit superior in reliability is obtained.
Inventors:
Yasuo Mikuriya
Keiji Kuboyama
Keiji Kuboyama
Application Number:
JP20165793A
Publication Date:
March 27, 2000
Filing Date:
August 13, 1993
Export Citation:
Assignee:
Asahi Kasei Microsystem Co., Ltd.
International Classes:
G11C17/00; G11C16/06; H03K17/06; H03K17/10; (IPC1-7): H03K17/10; H03K17/06
Domestic Patent References:
| JP5787625A | ||||
| JP3296997A | ||||
| JP3125398A | ||||
| JP3177111A | ||||
| JP2116215A | ||||
| JP62149218A |
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)