JPS61120933U

JPS61120933U -

Info

Publication number: JPS61120933U
Application number: JP96985U
Authority: JP
Priority date: 1985-01-10
Filing date: 1985-01-10
Publication date: 1986-07-30

Description

[Brief explanation of drawings]

第１図ａ，ｂは本発明にかかる電圧変換回路の
それぞれブロツク図及び回路図、第２図は電子時
計の回路図、第３図ａ〜ｃは等価回路図、第４図
はタイムチヤート図である。１……電圧変換回路、２……電池、３……表示
制御回路、８，９……Ｄフリツプフロツプ、１０
……ＮＯＲ回路、１１，１４，１７，２２，２３
……インバータ、１２，１３……Ｐ型トランジス
タ、１５，１６，１８〜２１，２４〜３１……Ｎ
型トランジスタ。 Figures 1a and b are block diagrams and circuit diagrams of a voltage conversion circuit according to the present invention, Figure 2 is a circuit diagram of an electronic watch, Figures 3a to c are equivalent circuit diagrams, and Figure 4 is a time chart. It is. 1...Voltage conversion circuit, 2...Battery, 3...Display control circuit, 8, 9...D flip-flop, 10
...NOR circuit, 11, 14, 17, 22, 23
...Inverter, 12, 13...P-type transistor, 15, 16, 18-21, 24-31...N
type transistor.

Claims

[Scope of utility model registration request]

In a power supply device having a single voltage source that outputs a reference voltage, the same voltage as the reference voltage is supplied to the first
a first switching means for forming a voltage lower than the reference voltage on a second capacitor; and a second switching means for forming a voltage lower than the reference voltage on a second capacitor;
, third switching means for obtaining a voltage higher than the reference voltage by a combination connection of a second capacitor and the voltage source, and synchronizing the first, second and third switching means with a timing signal. What is claimed is: 1. A power supply device comprising: a control means for controlling the power supply;