JPS5469714A - Power unit - Google Patents
Power unitInfo
- Publication number
- JPS5469714A JPS5469714A JP13740877A JP13740877A JPS5469714A JP S5469714 A JPS5469714 A JP S5469714A JP 13740877 A JP13740877 A JP 13740877A JP 13740877 A JP13740877 A JP 13740877A JP S5469714 A JPS5469714 A JP S5469714A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- turned
- power unit
- integrator
- relatively long
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To eliminate a probability of anomalous heating and/or destruction even for a use of cheap transistor with a relatively long turn-off time, with the operating characteristic improved.
CONSTITUTION: In a conventional power unit, between an output of square wave generator 1 and a base of transistor 3, 3', is connected an integrator 8, and in series from top and bottom output end of said integrator 8, is connected a constant voltage diode 9, 9' further connected a protective relay 10, 10'. With an operating wave form of each element being as shown in the drawing, after the transistor 3 is perfectly turned off, the transistor 3' is turned on, and after the transistor 3' is perfectly turned off, the transistor 3 is turned on, resulting in no generation of faults likely of anomalous heating and/or damage of the transistor 3,3', thus capable of using a transistor of low price with a relatively long turn-off time.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13740877A JPS5469714A (en) | 1977-11-15 | 1977-11-15 | Power unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13740877A JPS5469714A (en) | 1977-11-15 | 1977-11-15 | Power unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5469714A true JPS5469714A (en) | 1979-06-05 |
Family
ID=15197936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13740877A Pending JPS5469714A (en) | 1977-11-15 | 1977-11-15 | Power unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5469714A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142304A1 (en) * | 1981-10-24 | 1983-05-11 | AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang | DC CONVERTER |
JPS60249867A (en) * | 1984-05-22 | 1985-12-10 | Fujitsu Denso Ltd | Double pulse generation preventing system |
-
1977
- 1977-11-15 JP JP13740877A patent/JPS5469714A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142304A1 (en) * | 1981-10-24 | 1983-05-11 | AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang | DC CONVERTER |
JPS60249867A (en) * | 1984-05-22 | 1985-12-10 | Fujitsu Denso Ltd | Double pulse generation preventing system |
JPH0424952B2 (en) * | 1984-05-22 | 1992-04-28 | Fujitsu Denso |
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