JPS5687119A - Switching regulator - Google Patents
Switching regulatorInfo
- Publication number
- JPS5687119A JPS5687119A JP16502179A JP16502179A JPS5687119A JP S5687119 A JPS5687119 A JP S5687119A JP 16502179 A JP16502179 A JP 16502179A JP 16502179 A JP16502179 A JP 16502179A JP S5687119 A JPS5687119 A JP S5687119A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- current
- output
- feedback
- 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 set the output voltage of other circuit to the regular voltage or higher even though the load of the output circuit in a feedback side circuit becomes zero or light with other output voltage turned to the regulator voltage or lower, by flowing the bleeder current according to the lowered voltage to the feedback side circuit.
CONSTITUTION: The bleeder consisting of the resistance RD, NPN transistor TRQ1 and load L1 is provided at the output terminal of the output circuit A1 which performs a voltage feedback. On the other hand, the voltage comparing circuit 7 is provided to the output circuit A2 which performs no voltage feedback to detect the change of the output voltage of the circuit A1. When the output voltage V2 of the circuit A2 becomes lower than the reference voltage VRE, the voltage corresponding to the lowered voltage is delivered from the circuit 7. Thus the bleeder current Id flow to the feedback side circuit. As a result, the current Id flows when the output circuit current I1 of the circuit A1 becomes lower than the minimum current ILO to set the current I1 to the current I1 to the current ILO or higher. Accordingly, the output voltage of the circuit A2 can be set to the regular level or higher even though the load of the circuit A1 becomes zero.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16502179A JPS5687119A (en) | 1979-12-19 | 1979-12-19 | Switching regulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16502179A JPS5687119A (en) | 1979-12-19 | 1979-12-19 | Switching regulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687119A true JPS5687119A (en) | 1981-07-15 |
Family
ID=15804329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16502179A Pending JPS5687119A (en) | 1979-12-19 | 1979-12-19 | Switching regulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687119A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6046770A (en) * | 1983-08-24 | 1985-03-13 | Nippon Chemicon Corp | Power source |
US4521842A (en) * | 1982-07-28 | 1985-06-04 | Reliance Electric Company | Circuit for controlling the volt-ampere characteristic of a load sharing power supply at no load and for inserting a preload |
JPS60177682U (en) * | 1984-05-01 | 1985-11-26 | 株式会社リコー | Switching type stabilized power supply |
JPH03198655A (en) * | 1989-12-25 | 1991-08-29 | Fuji Elelctrochem Co Ltd | Multioutput switching power supply |
-
1979
- 1979-12-19 JP JP16502179A patent/JPS5687119A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4521842A (en) * | 1982-07-28 | 1985-06-04 | Reliance Electric Company | Circuit for controlling the volt-ampere characteristic of a load sharing power supply at no load and for inserting a preload |
JPS6046770A (en) * | 1983-08-24 | 1985-03-13 | Nippon Chemicon Corp | Power source |
JPS60177682U (en) * | 1984-05-01 | 1985-11-26 | 株式会社リコー | Switching type stabilized power supply |
JPH03198655A (en) * | 1989-12-25 | 1991-08-29 | Fuji Elelctrochem Co Ltd | Multioutput switching power supply |
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