JPH0354380U - - Google Patents
Info
- Publication number
- JPH0354380U JPH0354380U JP11319289U JP11319289U JPH0354380U JP H0354380 U JPH0354380 U JP H0354380U JP 11319289 U JP11319289 U JP 11319289U JP 11319289 U JP11319289 U JP 11319289U JP H0354380 U JPH0354380 U JP H0354380U
- Authority
- JP
- Japan
- Prior art keywords
- output voltage
- output
- circuit
- shunt regulator
- output terminals
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図及び第２図は本考案の一実施例を示し、
第１図は回路図、第２図は直流出力電圧を示す波
形図、第３図及び第４図は従来例を示し、第３図
は回路図、第４図は直流出力電圧を示す波形図で
ある。
２……スイツチングトランジスタ（スイツチン
グ素子）、６……平滑用コンデンサ、１０……発
光ダイオード（発光素子）、１１……シヤントレ
ギユレータ、１７……抵抗、１８……コンデンサ
。
1 and 2 show an embodiment of the present invention,
Figure 1 is a circuit diagram, Figure 2 is a waveform diagram showing DC output voltage, Figures 3 and 4 are conventional examples, Figure 3 is a circuit diagram, and Figure 4 is a waveform diagram showing DC output voltage. It is. 2... Switching transistor (switching element), 6... Smoothing capacitor, 10... Light emitting diode (light emitting element), 11... Shunt regulator, 17... Resistor, 18... Capacitor.
Claims (1)
滑された直流出力電圧を出力端子間に出力し、前
記出力端子間にフオトカプラの発光素子とシヤン
トレギユレータとの直列回路を接続し、前記シヤ
ントレギユレータのリフアレンスに直流出力電圧
を分圧して印加し、前記フオトカプラを介してス
イツチング素子のオン、オフ動作を制御して前記
直流出力電圧を安定化するスイツチング電源装置
の出力電圧検出回路において、前記シヤントレギ
ユレータのカソード、アノード間にＣＲ時定数回
路を並列に接続したことを特徴とするスイツチン
グ電源装置の出力電圧検出回路。 A DC output voltage smoothed by a smoothing circuit using a small capacitor is output between output terminals, a series circuit of a photocoupler light emitting element and a shunt regulator is connected between the output terminals, and the shunt regulator is connected between the output terminals. In an output voltage detection circuit of a switching power supply device, which divides and applies a DC output voltage to the reference of a regulator, controls on/off operation of a switching element via the photocoupler, and stabilizes the DC output voltage, An output voltage detection circuit for a switching power supply device, characterized in that a CR time constant circuit is connected in parallel between the cathode and anode of the shunt regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11319289U JPH0729743Y2 (en) | 1989-09-27 | 1989-09-27 | Output voltage detection circuit for switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11319289U JPH0729743Y2 (en) | 1989-09-27 | 1989-09-27 | Output voltage detection circuit for switching power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0354380U true JPH0354380U (en) | 1991-05-27 |
| JPH0729743Y2 JPH0729743Y2 (en) | 1995-07-05 |
Family
ID=31661613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11319289U Expired - Lifetime JPH0729743Y2 (en) | 1989-09-27 | 1989-09-27 | Output voltage detection circuit for switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729743Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014165550A (en) * | 2013-02-21 | 2014-09-08 | Sanken Electric Co Ltd | Overshoot reduction circuit |
-
1989
- 1989-09-27 JP JP11319289U patent/JPH0729743Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014165550A (en) * | 2013-02-21 | 2014-09-08 | Sanken Electric Co Ltd | Overshoot reduction circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729743Y2 (en) | 1995-07-05 |