JPS649511A - Load control circuit - Google Patents
Load control circuitInfo
- Publication number
- JPS649511A JPS649511A JP16393287A JP16393287A JPS649511A JP S649511 A JPS649511 A JP S649511A JP 16393287 A JP16393287 A JP 16393287A JP 16393287 A JP16393287 A JP 16393287A JP S649511 A JPS649511 A JP S649511A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- voltage
- base
- power source
- collector
- 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
Abstract
PURPOSE:To widen an allowable range to the fluctuation of the input voltage of a load control circuit by connecting a collector and emitter circuits between a power source and a load, and providing a transistor for feeding back a voltage from the load and amplifying in a base to lower a lost voltage in the load control circuit. CONSTITUTION:A motor driver 6 is constituted of the transistor Tr4, in the emitter is connected to the power source 1 and the collector is connected to a motor and the transistor Tr5 in which the emitter is connected to the connecting point of resistances R4, R5, the base to the connecting point of resistances R7, R8, and the collector to the base of the transistor Tr4. The fluctuation of the voltage of the power source 1 appears as a voltage difference (difference of VP and VQ) between the base and the emitter of the transistor Tr5 and this is fed to the collector potential of the transistor Tr5, namely, to the base potential of the transistor Tr4. Therefore, the amplification degree of the transistor Tr4 is changed as circumstances require so as to constantly stabilize a voltage impressed to the motor 2 and the influence due to the fluctuation of the voltage of the power source 1 can be neglected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16393287A JPS649511A (en) | 1987-07-02 | 1987-07-02 | Load control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16393287A JPS649511A (en) | 1987-07-02 | 1987-07-02 | Load control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS649511A true JPS649511A (en) | 1989-01-12 |
Family
ID=15783563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16393287A Pending JPS649511A (en) | 1987-07-02 | 1987-07-02 | Load control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS649511A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6690567B1 (en) | 2002-09-26 | 2004-02-10 | Ceramphysics, Inc. | Capacitive energy storage device |
-
1987
- 1987-07-02 JP JP16393287A patent/JPS649511A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6690567B1 (en) | 2002-09-26 | 2004-02-10 | Ceramphysics, Inc. | Capacitive energy storage device |
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