CN202433511U - General maintaining instrument for switching power supplies of radar and medical communication equipment - Google Patents
General maintaining instrument for switching power supplies of radar and medical communication equipment Download PDFInfo
- Publication number
- CN202433511U CN202433511U CN 201220026060 CN201220026060U CN202433511U CN 202433511 U CN202433511 U CN 202433511U CN 201220026060 CN201220026060 CN 201220026060 CN 201220026060 U CN201220026060 U CN 201220026060U CN 202433511 U CN202433511 U CN 202433511U
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- switching power
- circuit
- pulse
- radar
- power supplies
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Abstract
The utility model provides a general maintaining instrument for switching power supplies of radar and medical communication equipment. The general maintaining instrument for the switching power supplies of the radar and medical communication equipment comprises a multivibrator circuit and a monostable vibrator circuit which processes a pulse signal of the multivibrator circuit, wherein the output of the multivibrator circuit is connected with a reverse driving circuit and outputs a synchronous pulse; the output end of the monostable vibrator circuit is connected with the reverse trigger driving circuit and outputs a shutoff pulse; and both the multivibrator circuit and the monostable vibrator circuit are formed by connecting a 555 integrated chip and peripheral components thereof. The general maintaining instrument for the switching power supplies of the radar and medical communication equipment is formed by connecting the general 555 integrated chip, has low cost and can output accurate and adjustable synchronous pulse and shutoff pulse, judge whether the switching power supplies are normal offline, detect whether all internal components of the switching power supplies have faults or not offline, and run a power extension for a long time offline in a full-load way.
Description
Technical field
The examining-repairing instrument of the pulsed Switching Power Supply of radar that the utility model relates to and medical communication equipment.
Background technology
At present, radar and medical communication equipment generally use stable, reliable 36V pulsed Switching Power Supply.After power fail occurring, a kind of disposal route is a depot repair, and another kind is exactly an on-bne repair.The depot repair cycle is long, and on-bne repair takies working equipment, all the solution of non-the best.An examining-repairing instrument of accomplishing Switching Power Supply under can off-line state be very necessary, but existing off line maintenance can only be used expensive clock-pulse generator, is difficult to popularize in each application units of basic unit be equipped with.
Summary of the invention
The goal of the invention of the utility model be to replace existing clock-pulse generator and provide that a kind of cost is low, working stability, radar and the general examining-repairing instrument of medical communication facility switching power supply reliably.The general examining-repairing instrument technical scheme of radar that the utility model provides and medical communication facility switching power supply; Its major technique content is: a kind of radar and the general examining-repairing instrument of medical communication facility switching power supply; Comprise multi-resonant oscillating circuit and the monostable oscillatory circuit of taking from the multi-resonant oscillating circuit pulse signal; Multi-resonant oscillating circuit output connects the anti-phase driving circuit, and output synchronizing pulse, monostable output end of oscillating circuit connect anti-phase and trigger driving circuit; Pulse is turn-offed in output, and multi-resonant oscillating circuit and monostable oscillatory circuit connect and compose respectively by 555 integrated chips and peripheral components thereof.
The general examining-repairing instrument technical scheme of radar that the utility model provides and medical communication facility switching power supply; 555 integrated chips by general connect and compose; The synchronizing pulse that cost is low, output is accurate, adjustable and turn-off pulse replaces bearing the work of existing clock-pulse generator, for the off line of the 36V pulsed Switching Power Supply that realizes radar and medical communication equipment is overhauled the condition created fast; Whether but off line is judged Switching Power Supply normal, but off line detects all internal components of power supply non-fault arranged.
Description of drawings
Accompanying drawing is the circuit theory diagrams of the utility model.
Embodiment
Disclosed radar of the utility model and the general examining-repairing instrument of medical communication facility switching power supply, its circuit comprises multi-resonant oscillating circuit shown in accompanying drawing; The output terminal of multi-resonant oscillating circuit connects the anti-phase driving circuit, and this multi-resonant oscillating circuit is by 555 chip N1 and peripheral components, constitutes like potentiometer W1, W2, capacitor C 1; If potentiometer W1 will export the recurrence interval and be adjusted into 1000 μ s; Making pulse width through adjustment potentiometer W2 is 100 μ s, drives through reverse triode T1, exports the basic pulse of 90% dutycycle; For power supply provides required synchronizing pulse, and enough load currents are provided.In the present embodiment, for improving versatility, to adapt to the amplitude requirement of transmitter synchronizing pulse, reverse triode T1 output is connected with mutual inductor L1 output synchronizing pulse, and the mutual inductor L1 secondary coil number of turn depends on the sync tip level value.This radar and the general examining-repairing instrument of medical communication facility switching power supply also comprise the monostable oscillatory circuit that is connected in the multi-resonant oscillating circuit output terminal, and the monostable output end of oscillating circuit connects anti-phase and triggers driving circuit, produce and turn-off pulse.This monostable oscillatory circuit is made up of 555 integrated chip N2 and peripheral components thereof; The pulse output of multi-resonant oscillating circuit is connected to this monostable oscillatory circuit input end; Negative edge by basic pulse starts the positive square-wave pulse of output; This square-wave pulse width is for turn-offing the hysteresis period of pulse, and adjustment potentiometer W3 is to change square width; Common emitter triode T2 constitutes anti-phase and triggers driving circuit, and in the negative edge conducting of square-wave pulse, output terminal turn-offs pulse.The large bulk capacitance charging of above-mentioned synchronizing pulse starting switch power supply in transmitter; Above-mentioned shutoff pulse stopcock power supply when this large bulk capacitance does not overcharge; Avoid transmitter voltage too high, and synchronizing pulse and shutoff pulse also have the Switching Power Supply of avoiding charging and overlap each other with transmitter work, guarantee the transmitter reliably working; Its sync tip level is generally that 10-15V, pulsewidth are about 100 μ s, the recurrence interval is between the 1000-3000 μ s; Turn-offing pulsion phase has the permanent delay time to synchronizing pulse, and pulse height is generally 10-15v, and pulsewidth is 3-5 μ s.
Claims (1)
1. radar and the general examining-repairing instrument of medical communication facility switching power supply; The monostable oscillatory circuit that it is characterized in that comprising multi-resonant oscillating circuit and take from the multi-resonant oscillating circuit pulse signal; Multi-resonant oscillating circuit output connects the anti-phase driving circuit, and output synchronizing pulse, monostable output end of oscillating circuit connect anti-phase and trigger driving circuit; Pulse is turn-offed in output, and multi-resonant oscillating circuit and monostable oscillatory circuit connect and compose respectively by 555 integrated chips and peripheral components thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220026060 CN202433511U (en) | 2012-01-19 | 2012-01-19 | General maintaining instrument for switching power supplies of radar and medical communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220026060 CN202433511U (en) | 2012-01-19 | 2012-01-19 | General maintaining instrument for switching power supplies of radar and medical communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433511U true CN202433511U (en) | 2012-09-12 |
Family
ID=46782950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220026060 Expired - Fee Related CN202433511U (en) | 2012-01-19 | 2012-01-19 | General maintaining instrument for switching power supplies of radar and medical communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501737A (en) * | 2016-10-11 | 2017-03-15 | 深圳Tcl数字技术有限公司 | Switching Power Supply test device |
-
2012
- 2012-01-19 CN CN 201220026060 patent/CN202433511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501737A (en) * | 2016-10-11 | 2017-03-15 | 深圳Tcl数字技术有限公司 | Switching Power Supply test device |
| CN106501737B (en) * | 2016-10-11 | 2020-01-14 | 深圳Tcl数字技术有限公司 | Switching power supply testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20130119 |