JPH01116536U - - Google Patents
Info
- Publication number
- JPH01116536U JPH01116536U JP1081988U JP1081988U JPH01116536U JP H01116536 U JPH01116536 U JP H01116536U JP 1081988 U JP1081988 U JP 1081988U JP 1081988 U JP1081988 U JP 1081988U JP H01116536 U JPH01116536 U JP H01116536U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- whose
- power
- diode
- power supply
- 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
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案による電源保護回路の接続図、
第２図は従来における電源保護回路の接続図であ
る。
図中、１はリレー回路、２はスイツチ接点、３
はリレー巻線、８，１５は制御トランジスタ、１
０，１２はダイオード、１１，１７は電源スイツ
チ、１３，１７はツエナーダイオード、１９はト
ランジスタである。
Figure 1 is a connection diagram of the power protection circuit according to the present invention.
FIG. 2 is a connection diagram of a conventional power protection circuit. In the figure, 1 is a relay circuit, 2 is a switch contact, and 3 is a relay circuit.
is a relay winding, 8 and 15 are control transistors, 1
0 and 12 are diodes, 11 and 17 are power switches, 13 and 17 are Zener diodes, and 19 is a transistor.
Claims (1)
動する電源回路において、直流電源端にスイツチ
接点の一端を負荷端にスイツチ接点の他端を接続
したリレー回路と、直流電源端にエミツタ端を負
荷端にコレクタ端を接続したＰＮＰ型トランジス
タと、該トランジスタのベース端にアノード端を
接続した第１ダイオードと、この第１ダイオード
のカソード端に一端を接続し、他端を接地したス
イツチと、負荷端に一端を接続した前記リレーの
リレー巻線と、このリレー巻線の他端にアノード
端を前記スイツチの一端にカソード端を接続した
第２ダイオードとで構成された電源保護回路。 In a power supply circuit that operates by receiving power from a DC power supply such as a battery, there is a relay circuit in which one end of the switch contact is connected to the DC power end and the other end of the switch contact is connected to the load end, and the emitter end is connected to the DC power end and the load end. a PNP transistor whose collector end is connected to the transistor, a first diode whose anode end is connected to the base end of the transistor, a switch whose one end is connected to the cathode end of the first diode and whose other end is grounded, and a load end. A power supply protection circuit comprising a relay winding of the relay, one end of which is connected to the relay, and a second diode, the anode end of which is connected to the other end of the relay winding, and the cathode end of which is connected to one end of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081988U JPH01116536U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1081988U JPH01116536U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01116536U true JPH01116536U (en) | 1989-08-07 |
Family
ID=31218814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1081988U Pending JPH01116536U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01116536U (en) |
-
1988
- 1988-01-29 JP JP1081988U patent/JPH01116536U/ja active Pending