JPH0447733U - - Google Patents
Info
- Publication number
- JPH0447733U JPH0447733U JP8806290U JP8806290U JPH0447733U JP H0447733 U JPH0447733 U JP H0447733U JP 8806290 U JP8806290 U JP 8806290U JP 8806290 U JP8806290 U JP 8806290U JP H0447733 U JPH0447733 U JP H0447733U
- Authority
- JP
- Japan
- Prior art keywords
- fixed contact
- state
- power supply
- circuit
- selection switch
- 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 3
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
Description
第１図は本考案のマイコン用電源回路の電気的
構成を示すブロツク図、第２図は本電源回路での
機能選択スイツチ切り換え時のマイコン用電源電
圧の時間変化を示すグラフ、第３図は従来のマイ
コン用電源回路の電気的構成を示すブロツク図、
第４図は従来の電源回路での機能選択スイツチ切
り換え時のマイコン用電源電圧の時間変化を示す
グラフである。
１……機能選択スイツチ、２……安定化回路、
３……ＣＤ用マイコン、４……インバータ回路、
Ｄ１，Ｄ２……ダイオード。
Fig. 1 is a block diagram showing the electrical configuration of the microcomputer power supply circuit of the present invention, Fig. 2 is a graph showing the time change of the microcomputer power supply voltage when switching the function selection switch in the present power supply circuit, and Fig. 3 is A block diagram showing the electrical configuration of a conventional power supply circuit for microcontrollers.
FIG. 4 is a graph showing a change over time in the power supply voltage for a microcomputer when a function selection switch is switched in a conventional power supply circuit. 1...Function selection switch, 2...Stabilization circuit,
3...CD microcomputer, 4...Inverter circuit,
D1, D2...diodes.
Claims (1)
作機能を個別に制御する複数のマイコンが設けら
れ、各マイコンの電源端子は、それぞれ安定化回
路を介して多接点型機能選択スイツチの各固定接
点に接続され、機能選択スイツチの可動接点に電
源電圧が供給されるように構成されたマイコン用
電源回路において、 前記機能選択スイツチの固定接点側に、該固定
接点のオン／オフ状態を検出する検出回路が設け
られ、この検出回路の検出信号により、任意の固
定接点がオン状態からオフ状態に切り換わつたと
きには、その固定接点に接続された安定化回路の
コンデンサの充電電圧を急速に放電するようにし
たことを特徴とするマイコン用電源回路。[Claims for Utility Model Registration] A plurality of microcontrollers are provided that have a plurality of different operating functions and control each operating function individually, and the power terminals of each microcontroller are connected to the multi-contact type function via a stabilizing circuit. In a power supply circuit for a microcomputer configured to be connected to each fixed contact of a selection switch and to supply a power supply voltage to a movable contact of a function selection switch, the fixed contact side of the function selection switch is connected to the ON/OFF state of the fixed contact. A detection circuit is provided to detect the OFF state, and when any fixed contact is switched from the ON state to the OFF state by the detection signal of this detection circuit, the capacitor of the stabilizing circuit connected to that fixed contact is charged. A power supply circuit for microcontrollers that is characterized by rapidly discharging voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806290U JPH0447733U (en) | 1990-08-22 | 1990-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806290U JPH0447733U (en) | 1990-08-22 | 1990-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0447733U true JPH0447733U (en) | 1992-04-23 |
Family
ID=31820974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8806290U Pending JPH0447733U (en) | 1990-08-22 | 1990-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447733U (en) |
-
1990
- 1990-08-22 JP JP8806290U patent/JPH0447733U/ja active Pending
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