JPS5558775A - Power supply device - Google Patents
Power supply deviceInfo
- Publication number
- JPS5558775A JPS5558775A JP13193578A JP13193578A JPS5558775A JP S5558775 A JPS5558775 A JP S5558775A JP 13193578 A JP13193578 A JP 13193578A JP 13193578 A JP13193578 A JP 13193578A JP S5558775 A JPS5558775 A JP S5558775A
- Authority
- JP
- Japan
- Prior art keywords
- power
- loads
- operational amplifier
- voltage
- positive
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To efficiently produce economic power, by dividing the voltage of single DC power to generate apparently two positive and negative voltages.
CONSTITUTION: The voltage of single DC power E is divided by resistors R1, R2. The point between the resistors is connected to the positive terminal of an operational amplifier IC. The common emitter of transistors TR1, TR2 of different type is connected to loads RL1, RL2 and the negative terminal of the operational amplifier. When the loads RL1, RL2 are equal to each other, no current flows between connection points M, N. When the load RL1 is larger than the other RL2, the operational amplifier generates a positive voltage. At that time, the transistor TR1 is turned on, the other TR2 is turned off and equal voltages are applied to the loads. Apparently two DC power outputs can thus be efficiently and economically obtained from single DC power through a small number of parts.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13193578A JPS5558775A (en) | 1978-10-25 | 1978-10-25 | Power supply device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13193578A JPS5558775A (en) | 1978-10-25 | 1978-10-25 | Power supply device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5558775A true JPS5558775A (en) | 1980-05-01 |
Family
ID=15069643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13193578A Pending JPS5558775A (en) | 1978-10-25 | 1978-10-25 | Power supply device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558775A (en) |
-
1978
- 1978-10-25 JP JP13193578A patent/JPS5558775A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5292321A (en) | Power supply circuit | |
JPS52114915A (en) | Dc-dc converter | |
JPS54104524A (en) | Speed control circuit for dc motor | |
JPS57206113A (en) | Amplifier for limiter | |
JPS5558775A (en) | Power supply device | |
JPS5533221A (en) | Current output circuit | |
JPS56144610A (en) | Converting circuit | |
MY100773A (en) | Frequency to current converter circuit. | |
JPS54156153A (en) | Temperature compensating constant voltage circuit | |
JPS575406A (en) | Current limiting circuit | |
JPS54154066A (en) | Constant-voltage power supply circuit | |
JPS57107618A (en) | Power amplifier | |
JPS5490549A (en) | Dc stabilized power source device | |
JPS57210725A (en) | High-voltage switching circuit | |
JPS56107609A (en) | Push-pull amplifying circuit | |
JPS56136007A (en) | Phase inverting circuit | |
JPS5445770A (en) | Stabilized power supply | |
JPS5523764A (en) | Separately-excited dc-dc converter | |
JPS54152139A (en) | Multi-voltage power source | |
JPS53117709A (en) | Dummy resistor on-off circuit | |
JPS6444516A (en) | Power supply circuit | |
JPS57162521A (en) | Gate circuit | |
JPS54147449A (en) | Protective circuit | |
JPS5597616A (en) | Stabilizing power source for direct current | |
JPS57203114A (en) | Power supply circuit |