JPH0187423U - - Google Patents
Info
- Publication number
- JPH0187423U JPH0187423U JP18104287U JP18104287U JPH0187423U JP H0187423 U JPH0187423 U JP H0187423U JP 18104287 U JP18104287 U JP 18104287U JP 18104287 U JP18104287 U JP 18104287U JP H0187423 U JPH0187423 U JP H0187423U
- Authority
- JP
- Japan
- Prior art keywords
- power source
- circuit
- external power
- contact section
- load
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
Description
第１図は、この考案の一実施例を示す回路構成
図である。
１１……内部電源、１２……抵抗、１３，１５
……ダイオード、１４……発光ダイオード、１６
……パワージヤツク。
FIG. 1 is a circuit diagram showing an embodiment of this invention. 11... Internal power supply, 12... Resistor, 13, 15
... Diode, 14 ... Light emitting diode, 16
...Power jack.
Claims (1)
接点部と、上記外部電源が接続されないと上記内
部電源を上記接点部を介して負荷に接続するとと
もに上記外部電源の接続により上記接点が開離さ
れた状態で該外部電源を上記負荷に接続する第１
の回路と、上記内部電源を上記負荷に接続する第
２の回路を具備し、上記第１の回路の抵抗を上記
第２の回路の抵抗より小さく設定したことを特徴
とする電源回路。 A contact section that is opened when an internal power source and an external power source are connected; and when the external power source is not connected, the internal power source is connected to the load via the contact section, and the contact section is opened when the external power source is connected. a first connecting the external power source to the load in a state in which the external power source is
A power supply circuit comprising: a circuit; and a second circuit for connecting the internal power supply to the load, wherein the resistance of the first circuit is set to be smaller than the resistance of the second circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18104287U JPH0187423U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18104287U JPH0187423U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0187423U true JPH0187423U (en) | 1989-06-09 |
Family
ID=31472541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18104287U Pending JPH0187423U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0187423U (en) |
-
1987
- 1987-11-30 JP JP18104287U patent/JPH0187423U/ja active Pending