JPS5566137A - Power unit of electronic counter - Google Patents
Power unit of electronic counterInfo
- Publication number
- JPS5566137A JPS5566137A JP13950078A JP13950078A JPS5566137A JP S5566137 A JPS5566137 A JP S5566137A JP 13950078 A JP13950078 A JP 13950078A JP 13950078 A JP13950078 A JP 13950078A JP S5566137 A JPS5566137 A JP S5566137A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- main body
- output voltage
- counter
- electronic unit
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/38—Starting, stopping or resetting the counter
Landscapes
- Electronic Switches (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE:To prevent supply of the erroneous input signal to the electronic unit at the service interruption time and thus to avoid the malfunction of the counter by providing the power circuit for electronic unit supplying the input signal plus the voltage detection circuit which detects the output voltage of the power circuit to the main body circuit of the electronic counter. CONSTITUTION:The 2-series of rectifier circuits 231 and 232 plus constant voltage circuits 251 and 252 are connected to the secondary side of transformer 22 connected to AC power source AC, and the output voltage of circuit 252 is supplied to the counter main body. At the same time, the output voltage of circuit 251 is applied to electronic unit 26 applying the input signal to the counter main body as well as to voltage detection circuit 29 which detects the output voltage of circuit 251 at the service interruption time. And when the output voltage lowers less than the fixed level due to circuit 29 at the service interruption time, the detection signal is sent to the counter main body through the photo coupler consisting of light emitting diode 292 and photo transistor 32. Thus the signal input function is stopped to the counter main body to prevent occurrence of the malfunction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13950078A JPS5945294B2 (en) | 1978-11-13 | 1978-11-13 | electronic counter power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13950078A JPS5945294B2 (en) | 1978-11-13 | 1978-11-13 | electronic counter power supply |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5566137A true JPS5566137A (en) | 1980-05-19 |
JPS5945294B2 JPS5945294B2 (en) | 1984-11-05 |
Family
ID=15246716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13950078A Expired JPS5945294B2 (en) | 1978-11-13 | 1978-11-13 | electronic counter power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5945294B2 (en) |
-
1978
- 1978-11-13 JP JP13950078A patent/JPS5945294B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5945294B2 (en) | 1984-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR860003698A (en) | Current type power conversion device with self-extinguishing element | |
JPS5795179A (en) | Switching regulator | |
MX9305381A (en) | GATE IMPELLER CIRCUIT. | |
NO963028L (en) | Return inverter with regulated output voltage | |
NO162172C (en) | POWER SUPPLY FOR SERIATED ELECTRONIC CIRCUITS. | |
JPS5566137A (en) | Power unit of electronic counter | |
JPS5532133A (en) | Regulated power supply unit of feedback control type | |
JPS57502039A (en) | ||
JPS5566138A (en) | Power unit of electronic counter | |
JPS57208870A (en) | Protective device for service interruption of voltage type inverter | |
JPS576916A (en) | Power supply device | |
JPS5566135A (en) | Power unit of electronic counter | |
JPS5779757A (en) | Power feeding system for exchanger | |
JPS5566136A (en) | Power unit of electronic counter | |
JPS578457A (en) | Generating circuit for power source determination signal | |
JPS57128053A (en) | Integrated circuit device | |
JPS5799032A (en) | Alternating current two-wire type contactless switch | |
ATE3685T1 (en) | CIRCUIT ARRANGEMENT FOR REMOTE SUPPLY OF INTERMEDIATE CENTERS OF A COMMUNICATIONS TRANSMISSION TECHNOLOGY EQUIPMENT BY MEANS OF DIRECT CURRENT SERIES SUPPLY. | |
FR2298898A1 (en) | DC to DC converter with isolated output - suitable for aircraft control panel illumination and uses relaxation oscillator which triggers transformer input | |
JPS5391361A (en) | Power supply device | |
JPS54104527A (en) | Dc power supply stabilizer | |
JPS56134832A (en) | Two-wire photoelectric switch for alternating current and direct current | |
JPS56132177A (en) | High tension generation circuit | |
JPS56169429A (en) | Alternating current contactless switch | |
JPS5790723A (en) | Power supply device |