JPS61138382U - - Google Patents
Info
- Publication number
- JPS61138382U JPS61138382U JP1785385U JP1785385U JPS61138382U JP S61138382 U JPS61138382 U JP S61138382U JP 1785385 U JP1785385 U JP 1785385U JP 1785385 U JP1785385 U JP 1785385U JP S61138382 U JPS61138382 U JP S61138382U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- detection circuit
- input voltage
- abnormality detection
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は、本考案検出回路の１回路例、第２図
は、第１図の主要部の電圧波形である。
ＴＲ……スイツチングトランス、Ｎ１……ＴＲ
の入力巻線、Ｑ……スイツチングトランジスタ、
Ｂ……ベース回路、Ｎ３……ベース巻線、Ｎ２…
…ＴＲの出力巻線、Ｄ……整流ダイオード、Ｃ…
…平滑コンデンサ、Ｐ′……従来の検出回路位置
、Ｐ……本発明の検出回路位置、Ｖｉｎ……入力
電源電圧、Ｖａ……ＱのコレクターＥミツタ電圧
、ＶＮ２……出力電圧、ＴＯＮ……ＱのＯＮ時間
、ＴＯＦＦ……ＱのＯＦＦ時間、ＶＯＮ……二次
側ＯＮ時電圧、ＶＯＦＦ……二次側ＯＦＦ時電圧
。
FIG. 1 shows an example of the detection circuit of the present invention, and FIG. 2 shows voltage waveforms of the main parts of FIG. TR...Switching transformer, N1 ...TR
input winding, Q...switching transistor,
B...Base circuit, N3 ...Base winding, N2 ...
...TR output winding, D... rectifier diode, C...
...Smoothing capacitor, P'...Conventional detection circuit position, P...Detection circuit position of the present invention, Vin...Input power supply voltage, Va...Q collector E-mitsuta voltage, VN2 ...Output voltage, TON... ...Q ON time, TOFF...Q OFF time, VON...voltage when secondary side is ON, VOFF...voltage when secondary side is OFF.
Claims (1)
ージ吸収回路と整流回路より成るＲＣＣフライバ
ツク型スイツチング電源において、２次側回路に
入力電圧異常検出回路を設けたことを特徴とする
スイツチング電源入力電圧異常検出回路。 A switching power supply input voltage abnormality detection circuit characterized in that an RCC flyback type switching power supply comprising a switching transformer, a switching element, a surge absorption circuit, and a rectifier circuit is provided with an input voltage abnormality detection circuit in the secondary side circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1785385U JPS61138382U (en) | 1985-02-13 | 1985-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1785385U JPS61138382U (en) | 1985-02-13 | 1985-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138382U true JPS61138382U (en) | 1986-08-27 |
Family
ID=30505947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1785385U Pending JPS61138382U (en) | 1985-02-13 | 1985-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138382U (en) |
-
1985
- 1985-02-13 JP JP1785385U patent/JPS61138382U/ja active Pending
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