JPS6329340U - - Google Patents
Info
- Publication number
- JPS6329340U JPS6329340U JP11891386U JP11891386U JPS6329340U JP S6329340 U JPS6329340 U JP S6329340U JP 11891386 U JP11891386 U JP 11891386U JP 11891386 U JP11891386 U JP 11891386U JP S6329340 U JPS6329340 U JP S6329340U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- protection switch
- inputting
- comparator
- 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
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
第１図は本考案の全体構成を示すブロツク図、
第２図は本考案の一実施例を示す回路図、第３図
は従来の一例を示す回路図である。
１：直流電源、２：電源スイツチ、３：保護ス
イツチ、４：外部装置、５，１０：逆電流防止回
路、６：保持回路、７：定電圧化回路、８，９：
比較器、１１：遅延回路、１２，１３：分圧回路
、２７：三端子レギユレータ。
Figure 1 is a block diagram showing the overall configuration of the present invention.
FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIG. 3 is a circuit diagram showing a conventional example. 1: DC power supply, 2: Power switch, 3: Protection switch, 4: External device, 5, 10: Reverse current prevention circuit, 6: Holding circuit, 7: Constant voltage circuit, 8, 9:
Comparator, 11: Delay circuit, 12, 13: Voltage divider circuit, 27: Three-terminal regulator.
Claims (1)
護スイツチを介して外部へ出力する電源装置にお
いて、受け入れた電源を逆電流防止回路と遅延回
路と第１の分圧回路を介して第１の比較器に入力
する回路、また前記保護スイツチを通つた出力電
圧を第２の分配器を介して第２の比較器に入力す
る回路及び前記受入れた電源を逆電流防止回路と
保持回路と定電圧化回路を介して発生した基準電
圧を前記第１、第２の比較器に入力する回路を有
し、前記第１の比較器は基準電圧より低い入力電
圧の場合に前記保護スイツチを閉じ、前記第２の
比較器は基準電圧より低い入力電圧の場合に前記
保護スイツチを開き、この保護スイツチは閉じる
制御を優先して受入れることを特徴とする電源保
護回路。 In a power supply device that accepts DC power through a power switch and outputs it to the outside through a protection switch, the received power is passed through a reverse current prevention circuit, a delay circuit, and a first voltage divider circuit to a first comparator. A circuit for inputting the voltage, a circuit for inputting the output voltage through the protection switch to a second comparator via a second distributor, and a reverse current prevention circuit, a holding circuit, and a voltage regulating circuit for inputting the received power supply. a circuit for inputting a reference voltage generated through the reference voltage to the first and second comparators, the first comparator closes the protection switch when the input voltage is lower than the reference voltage; A power supply protection circuit characterized in that a comparator opens the protection switch in the case of an input voltage lower than a reference voltage, and the protection switch accepts control to close the protection switch with priority.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11891386U JPS6329340U (en) | 1986-08-04 | 1986-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11891386U JPS6329340U (en) | 1986-08-04 | 1986-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6329340U true JPS6329340U (en) | 1988-02-26 |
Family
ID=31005809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11891386U Pending JPS6329340U (en) | 1986-08-04 | 1986-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329340U (en) |
-
1986
- 1986-08-04 JP JP11891386U patent/JPS6329340U/ja active Pending