JPH01150444U - - Google Patents
Info
- Publication number
- JPH01150444U JPH01150444U JP4854588U JP4854588U JPH01150444U JP H01150444 U JPH01150444 U JP H01150444U JP 4854588 U JP4854588 U JP 4854588U JP 4854588 U JP4854588 U JP 4854588U JP H01150444 U JPH01150444 U JP H01150444U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- state
- changeover
- external power
- primary battery
- 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 2
Classifications
-
- Y02E60/12—
Landscapes
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Secondary Cells (AREA)
Description
第１図は本考案に係る電源機供給装置の一例で
ある電源供給回路を示す回路図である。第２図は
従来の電源供給装置を示す回路図である。
図面中、１は電気負荷の一例であるＬＳＩ、２
はＡＣアダプタ、３は電源切換手段の一例である
接続部、６はＯＮ，ＯＦＦ切換スイツチ手段の一
例であるＰ―ＭＯＳ、Ｒ１はプルダウン抵抗、Ｂ
Ａは１次電池である。
FIG. 1 is a circuit diagram showing a power supply circuit which is an example of a power supply device according to the present invention. FIG. 2 is a circuit diagram showing a conventional power supply device. In the drawing, 1 is an LSI which is an example of an electric load, 2
is an AC adapter, 3 is a connection part which is an example of a power supply switching means, 6 is a P-MOS which is an example of an ON/OFF switching means, R1 is a pull-down resistor, and B
A is a primary battery.
Claims (1)
１次電池を保有し、前記電気負荷に接続され、前
記１次電池からの電力を電気負荷に供給するため
の内部電力供給手段と、 外部電源に接続されるとともに前記電気負荷に
接続され、外部電源からの電力を前記電気負荷に
供給するための外部電力供給手段と、 前記１次電池からの内部電力供給状態と前記外
部電源からの外部電力供給状態とに切換えるため
の電源切換手段とを含み、 前記内部電力供給手段は、ＯＮ状態で導通状態
となり前記１次電池を前記電気負荷に電気的に接
続しＯＦＦ状態で非導通状態となり前記１次電池
と前記外部電源との電気的接続を遮断するＯＮ，
ＯＦＦ切換スイツチ手段を含み、 前記電源切換手段による内部電力供給状態への
切換に応答して前記ＯＮ，ＯＦＦ切換スイツチ手
段をＯＮ状態に切換え、前記電源切換手段による
外部電力供給状態への切換に応答して前記ＯＮ，
ＯＦＦ切換スイツチ手段をＯＦＦ状態に切換える
切換制御手段をさらに含む、電源供給装置。[Claims for Utility Model Registration] A utility model having a primary battery as an internal power source for supplying power to an electric load, connected to the electric load, and configured to supply electric power from the primary battery to the electric load. internal power supply means; external power supply means connected to an external power supply and to the electrical load for supplying power from the external power supply to the electrical load; and internal power supply state from the primary battery. and a power supply switching means for switching between an external power supply state from the external power source, and the internal power supply means is in a conductive state in an ON state, electrically connects the primary battery to the electric load, and is turned OFF. ON, which becomes a non-conducting state and cuts off electrical connection between the primary battery and the external power source;
OFF changeover switch means, which switches the ON/OFF changeover switch means to the ON state in response to the changeover to the internal power supply state by the power supply changeover means, and in response to the changeover to the external power supply state by the power supply changeover means. and said ON,
A power supply device further comprising switching control means for switching the OFF switch means to an OFF state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4854588U JPH01150444U (en) | 1988-04-11 | 1988-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4854588U JPH01150444U (en) | 1988-04-11 | 1988-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01150444U true JPH01150444U (en) | 1989-10-18 |
Family
ID=31274689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4854588U Pending JPH01150444U (en) | 1988-04-11 | 1988-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01150444U (en) |
-
1988
- 1988-04-11 JP JP4854588U patent/JPH01150444U/ja active Pending