JPH0476182U - - Google Patents
Info
- Publication number
- JPH0476182U JPH0476182U JP11939090U JP11939090U JPH0476182U JP H0476182 U JPH0476182 U JP H0476182U JP 11939090 U JP11939090 U JP 11939090U JP 11939090 U JP11939090 U JP 11939090U JP H0476182 U JPH0476182 U JP H0476182U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- base
- capacitor
- switching power
- power transistor
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は従来技術について、簡略的に示した回路図であ
る。
符号の説明、１……入力電源、２，６……起動
用抵抗、３……分割抵抗、４……コンデンサ、５
……スタンバイ信号、６……ドライブ抵抗、７…
…トランジスタ、８……パワートランジスタ、９
，１０……スイツチ、１１……起動回路、１２…
…スイツチング部。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram simply showing a conventional technique. Explanation of symbols, 1... Input power supply, 2, 6... Starting resistor, 3... Dividing resistor, 4... Capacitor, 5
...Standby signal, 6...Drive resistor, 7...
...Transistor, 8...Power transistor, 9
, 10... switch, 11... starting circuit, 12...
...Switching department.
Claims (1)
イツチング電源において、 整流出力とパワートランジスタのベースとの間
に接続されている抵抗と、前記パワートランジス
タのベースとの間にコンデンサを挿入し、前記コ
ンデンサの充放電を利用して前記スイツチング電
源の起動及び停止を行なう事を特徴とする電源回
路。[Claims for Utility Model Registration] In a switching power supply used in equipment with a standby function, a resistor connected between a rectified output and the base of a power transistor, and a capacitor connected between the base of the power transistor. A power supply circuit characterized in that the switching power supply is started and stopped by using charging and discharging of the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11939090U JPH0476182U (en) | 1990-11-16 | 1990-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11939090U JPH0476182U (en) | 1990-11-16 | 1990-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476182U true JPH0476182U (en) | 1992-07-02 |
Family
ID=31867350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11939090U Pending JPH0476182U (en) | 1990-11-16 | 1990-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476182U (en) |
-
1990
- 1990-11-16 JP JP11939090U patent/JPH0476182U/ja active Pending