JPS6419966A - Switching regulator - Google Patents
Switching regulatorInfo
- Publication number
- JPS6419966A JPS6419966A JP17247987A JP17247987A JPS6419966A JP S6419966 A JPS6419966 A JP S6419966A JP 17247987 A JP17247987 A JP 17247987A JP 17247987 A JP17247987 A JP 17247987A JP S6419966 A JPS6419966 A JP S6419966A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- reference voltage
- thermistor
- secondary side
- output
- 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 improve temperature characteristics by using a thermistor when the reference voltage of an error amplifier is set. CONSTITUTION:A switching regulator is composed of a diode bridge 2 for rectification, a transformer 3, a switching transistor(Tr) 5, a base driver circuit 6, an overcurrent detector 7, a soft starting circuit 8, a dead time control 11, a regulator IC 15, and a reference voltage setting circuit 16. When a temperature changes at that time, a thermistor 19 is used in the reference voltage setting circuit 16 in order to prevent the increase of the temperature dependency of output currents-output voltage characteristics on the secondary side by the temperature characteristics, etc. of a resistor. A voltage value input to an inversion terminal for an error amplifier 13 as reference voltage is hardly affected by the temperature, thus reducing the temperature dependency of output currents-output voltage characteristics on the secondary side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17247987A JPS6419966A (en) | 1987-07-10 | 1987-07-10 | Switching regulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17247987A JPS6419966A (en) | 1987-07-10 | 1987-07-10 | Switching regulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6419966A true JPS6419966A (en) | 1989-01-24 |
Family
ID=15942749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17247987A Pending JPS6419966A (en) | 1987-07-10 | 1987-07-10 | Switching regulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6419966A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0483852A2 (en) * | 1990-10-31 | 1992-05-06 | Kabushiki Kaisha Toshiba | Power source circuit |
EP1081838A2 (en) * | 1999-08-31 | 2001-03-07 | Fujitsu Limited | Power control method and circuit, and power supply unit |
-
1987
- 1987-07-10 JP JP17247987A patent/JPS6419966A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0483852A2 (en) * | 1990-10-31 | 1992-05-06 | Kabushiki Kaisha Toshiba | Power source circuit |
US5408401A (en) * | 1990-10-31 | 1995-04-18 | Kabushiki Kaisha Toshiba | Power source circuit with a compact size and operating efficiently at low temperature |
EP1081838A2 (en) * | 1999-08-31 | 2001-03-07 | Fujitsu Limited | Power control method and circuit, and power supply unit |
US6366475B2 (en) | 1999-08-31 | 2002-04-02 | Fujitsu Limited | Power control method and circuit, and power supply unit |
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