CN204515096U - A kind of working state monitoring of uninterrupted switch power supply and indicating circuit - Google Patents
A kind of working state monitoring of uninterrupted switch power supply and indicating circuit Download PDFInfo
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- CN204515096U CN204515096U CN201520277409.8U CN201520277409U CN204515096U CN 204515096 U CN204515096 U CN 204515096U CN 201520277409 U CN201520277409 U CN 201520277409U CN 204515096 U CN204515096 U CN 204515096U
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Abstract
The utility model discloses a kind of working state monitoring and indicating circuit of uninterrupted switch power supply, comprise dead electricity testing circuit, charge in batteries indicating circuit and battery discharging detect indicating circuit, dead electricity testing circuit is by electric capacity C1, switching diode D4 and resistance R4 forms, charge in batteries indicating circuit is made up of light emitting diode D1 and resistance R1, battery discharging detects indicating circuit by resistance R2, resistance R3, resistance R5, resistance R6, PNP type triode V1, zener diode D3 and light emitting diode D2 forms, resistance R1, resistance R2 and resistance R3 constitutes pressure divider circuit.The utility model circuit structure is simple, realizes convenient and cost is low, job stability and reliability high, long service life, can improve job security and the reliability of Switching Power Supply, application value is high.
Description
Technical field
The utility model belongs to switch power technology field, is specifically related to a kind of working state monitoring and indicating circuit of uninterrupted switch power supply.
Background technology
At present, uninterrupted power source is widely used in the fields such as electric power, finance, communication, plays a very important role the life of the people, property.Along with each big city is all at construction Underground Rail Transit, subway runs in underground throughout the year has very high requirement to illumination, except economize on electricity, the life-span is long, also continuous illumination must be ensured, but also have the fault of other reasons to cause dead electricity due to harsh climate, transformer fault, inevitably there will be power outage.Therefore, for ensureing reliability and the security of power supply, continuous illumination must be ensured.
At present, the scheme of continuous illumination mostly adopts uninterrupted power source to realize, and the dead electricity detection of civil power input is the important component part of uninterrupted switch power supply.Meanwhile, accumulator charging and discharging state is another importance of uninterrupted power source.By the monitoring to accumulator charging and discharging state, not only can understand the duty of circuit in real time, and provide certain indication information to maintainer, decrease the action of maintainer.But dead electricity testing circuit conventional in prior art is by voltage comparator, and amplifier etc. complete, and circuit structure is relatively complicated.And battery state of charge indicating circuit traditional in prior art, charging and discharging state cannot indicate in same circuit, and circuit structure is relatively complicated, realizes cost higher, and functional reliability is not high enough.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of working state monitoring and indicating circuit of uninterrupted switch power supply are provided, its circuit structure is simple, realization is convenient and cost is low, job stability and reliability high, long service life, can improve job security and the reliability of Switching Power Supply, application value is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of working state monitoring of uninterrupted switch power supply and indicating circuit, described uninterrupted switch power supply comprises disconnector converter and accumulator, and for being switched on or switched off the accumulator cell charging and discharging switch of disconnector converter and accumulator, described disconnector converter comprises high-frequency transformer, it is characterized in that: the working state monitoring of described uninterrupted switch power supply and indicating circuit comprise dead electricity testing circuit, charge in batteries indicating circuit and battery discharging detect indicating circuit, described dead electricity testing circuit is by electric capacity C1, switching diode D4 and resistance R4 forms, the described anode of switching diode D4 connects with the Same Name of Ends of the vice-side winding of high-frequency transformer, the negative electrode of described switching diode D4 connects with one end of resistance R4, the other end of described resistance R4 connects with one end of electric capacity C1, the described other end of electric capacity C1 connects with the reference ground of indicating circuit with the working state monitoring of uninterrupted switch power supply, described charge in batteries indicating circuit is made up of light emitting diode D1 and resistance R1, the anode of described light emitting diode D1 connects with the link of resistance R4 and electric capacity C1, the negative electrode of described light emitting diode D1 connects with one end of resistance R1, and the described other end of resistance R1 connects with the reference ground of indicating circuit with the working state monitoring of uninterrupted switch power supply, described battery discharging detects indicating circuit by resistance R2, resistance R3, resistance R5, resistance R6, PNP type triode V1, zener diode D3 and light emitting diode D2 forms, described resistance R1, resistance R2 and resistance R3 constitutes pressure divider circuit, the base stage of described PNP type triode V1 is connected with the negative electrode of light emitting diode D1 by resistance R2, the collector of described PNP type triode V1 is connected with the anode of light emitting diode D2 by resistance R6, the described negative electrode of light emitting diode D2 connects with the reference ground of indicating circuit with the working state monitoring of uninterrupted switch power supply, the emitter of described PNP type triode V1 connects with the negative electrode of one end of resistance R5 and zener diode D3, the other end of described resistance R5 connects with the cathode voltage output terminal of disconnector converter, the described anode of zener diode D3 connects with the reference ground of indicating circuit with the working state monitoring of uninterrupted switch power supply, described resistance R3 is connected between the base stage of PNP type triode V1 and emitter.
The working state monitoring of above-mentioned a kind of uninterrupted switch power supply and indicating circuit, it is characterized in that: described high-frequency transformer is high-frequency transformer T1, described disconnector converter is by high-frequency transformer T1, enhancement mode N-channel MOS field effect transistor Q1, the anti exciting converter that commutation diode D5 and electric capacity C2 forms, the different name end of the former limit winding of described high-frequency transformer T1 is the cathode voltage input end FVi+ of anti exciting converter, the source electrode of described enhancement mode N-channel MOS field effect transistor Q1 is the cathode voltage input end FVi-of anti exciting converter, the Same Name of Ends of the former limit winding of described high-frequency transformer T1 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q1, the anode of described switching diode D4 and the anode of commutation diode D5 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T1, the negative electrode of described commutation diode D5 connects with one end of electric capacity C2, and be the cathode voltage output terminal FVo+ of anti exciting converter, the different name end of the vice-side winding of described high-frequency transformer T1 connects with the other end of electric capacity C2, and be the cathode voltage output terminal FVo-of anti exciting converter, described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q2, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the cathode voltage output terminal FVo-of anti exciting converter, and with the working state monitoring of uninterrupted switch power supply and the reference of indicating circuit connect, the source electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the negative pole of accumulator, and the positive pole of described accumulator connects with the cathode voltage output terminal FVo+ of anti exciting converter.
The working state monitoring of above-mentioned a kind of uninterrupted switch power supply and indicating circuit, it is characterized in that: described high-frequency transformer is high-frequency transformer T2, described disconnector converter is by high-frequency transformer T2, enhancement mode N-channel MOS field effect transistor Q3, commutation diode D6, sustained diode 7, the forward converter that inductance L 1 and electric capacity C3 form, the different name end of the former limit winding of described high-frequency transformer T2 is the cathode voltage input end ZVi+ of forward converter, the source electrode of described enhancement mode N-channel MOS field effect transistor Q3 is the cathode voltage input end ZVi-of forward converter, the Same Name of Ends of the former limit winding of described high-frequency transformer T2 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q3, the anode of described switching diode D4 and the anode of commutation diode D6 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T2, the negative electrode of described commutation diode D6 connects with the negative electrode of one end of inductance L 1 and sustained diode 7, the other end of described inductance L 1 connects with one end of electric capacity C3, and be the cathode voltage output terminal ZVo+ of forward converter, the different name end of the vice-side winding of described high-frequency transformer T2 connects with the other end of the anode of sustained diode 7 and electric capacity C3, and be the cathode voltage output terminal ZVo-of forward converter, described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q4, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the cathode voltage output terminal ZVo-of forward converter, and with the working state monitoring of uninterrupted switch power supply and the reference of indicating circuit connect, the source electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the negative pole of accumulator, and the positive pole of described accumulator connects with the cathode voltage output terminal ZVo+ of forward converter.
The utility model compared with prior art has the following advantages:
1, the utility model have employed resistor capacitor circuit, and circuit structure is simple, reasonable in design, and realization is convenient and cost is low.
2, the utility model can realize detection and the instruction of dead electricity, charge in batteries and battery discharging three kinds of states, charging and discharging state is indicated in same circuit, determines the charging and discharging state of accumulator, ensure that the uninterrupted power supply of load.
3, job stability of the present utility model and reliability high, long service life.
4, after using the utility model in uninterrupted switch power supply, job security and the reliability of uninterrupted switch power supply are higher, and can be used in the many-side such as subway illumination, megastore's emergency service, therefore the utility model has higher application value.
In sum, the utility model circuit structure is simple, realizes convenient and cost is low, job stability and reliability high, long service life, can improve job security and the reliability of Switching Power Supply, application value is high.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model embodiment 1.
Fig. 2 is the circuit theory diagrams of the utility model embodiment 2.
Description of reference numerals:
1-anti exciting converter; 2-forward converter; 3-accumulator;
The working state monitoring of 4-uninterrupted switch power supply and indicating circuit.
Embodiment
Embodiment 1
As shown in Figure 1, the working state monitoring of uninterrupted switch power supply of the present utility model and indicating circuit, described uninterrupted switch power supply comprises disconnector converter and accumulator 3, and for being switched on or switched off the accumulator cell charging and discharging switch of disconnector converter and accumulator 3, described disconnector converter comprises high-frequency transformer, working state monitoring and the indicating circuit 4 of described uninterrupted switch power supply comprise dead electricity testing circuit, charge in batteries indicating circuit and battery discharging detect indicating circuit, described dead electricity testing circuit is by electric capacity C1, switching diode D4 and resistance R4 forms, the described anode of switching diode D4 connects with the Same Name of Ends of the vice-side winding of high-frequency transformer, the negative electrode of described switching diode D4 connects with one end of resistance R4, the other end of described resistance R4 connects with one end of electric capacity C1, the described other end of electric capacity C1 connects with the reference ground of indicating circuit 4 with the working state monitoring of uninterrupted switch power supply, described charge in batteries indicating circuit is made up of light emitting diode D1 and resistance R1, the anode of described light emitting diode D1 connects with the link of resistance R4 and electric capacity C1, the negative electrode of described light emitting diode D1 connects with one end of resistance R1, and the described other end of resistance R1 connects with the reference ground of indicating circuit 4 with the working state monitoring of uninterrupted switch power supply, described battery discharging detects indicating circuit and is made up of resistance R2, resistance R3, resistance R5, resistance R6, PNP type triode V1, zener diode D3 and light emitting diode D2, described resistance R1, resistance R2 and resistance R3 constitute pressure divider circuit, when can guarantee that accumulator 3 discharges, the pressure drop on resistance R3 is more than or equal to 0.7V, the base stage of described PNP type triode V1 is connected with the negative electrode of light emitting diode D1 by resistance R2, the collector of described PNP type triode V1 is connected with the anode of light emitting diode D2 by resistance R6, the described negative electrode of light emitting diode D2 connects with the reference ground of indicating circuit 4 with the working state monitoring of uninterrupted switch power supply, the emitter of described PNP type triode V1 connects with the negative electrode of one end of resistance R5 and zener diode D3, the other end of described resistance R5 connects with the cathode voltage output terminal of disconnector converter, the described anode of zener diode D3 connects with the reference ground of indicating circuit 4 with the working state monitoring of uninterrupted switch power supply, described resistance R3 is connected between the base stage of PNP type triode V1 and emitter.
As shown in Figure 1, in the present embodiment, described high-frequency transformer is high-frequency transformer T1, described disconnector converter is by high-frequency transformer T1, enhancement mode N-channel MOS field effect transistor Q1, the anti exciting converter 1 that commutation diode D5 and electric capacity C2 forms, the different name end of the former limit winding of described high-frequency transformer T1 is the cathode voltage input end FVi+ of anti exciting converter 1, the source electrode of described enhancement mode N-channel MOS field effect transistor Q1 is the cathode voltage input end FVi-of anti exciting converter 1, the Same Name of Ends of the former limit winding of described high-frequency transformer T1 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q1, the anode of described switching diode D4 and the anode of commutation diode D5 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T1, the negative electrode of described commutation diode D5 connects with one end of electric capacity C2, and be the cathode voltage output terminal FVo+ of anti exciting converter 1, the different name end of the vice-side winding of described high-frequency transformer T1 connects with the other end of electric capacity C2, and be the cathode voltage output terminal FVo-of anti exciting converter 1, described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q2, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the cathode voltage output terminal FVo-of anti exciting converter 1, and with the working state monitoring of uninterrupted switch power supply and the reference of indicating circuit 4 connect, the source electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the negative pole of accumulator 3, and the positive pole of described accumulator 3 connects with the cathode voltage output terminal FVo+ of anti exciting converter 1.During concrete enforcement, the cathode voltage input end FVi+ of described anti exciting converter 1 and cathode voltage input end FVi-connects with the cathode output end of external power source and cathode output end respectively, the grid of described enhancement mode N-channel MOS field effect transistor Q1 connects with outside first pwm control signal, and the grid of described enhancement mode N-channel MOS field effect transistor Q2 connects with outside second pwm control signal; Load RL is connected between the cathode voltage output terminal FVo+ of described anti exciting converter 1 and cathode voltage output terminal FVo-.
In the present embodiment, principle of work of the present utility model is:
Normal in civil power input, namely anti exciting converter 1 normally works and makes between accumulator 3 charge period, enhancement mode N-channel MOS field effect transistor Q2 reverse-conducting, now high-frequency transformer T1 secondary voltage is powered to load RL through commutation diode D5, meanwhile, switching diode D4 rectification conducting, high-frequency transformer T1 vice-side winding is charged to electric capacity C1 by switching diode D4 and resistance R4, after entering stable state, the voltage stabilization at electric capacity C1 two ends in
v
ifor inputting the supply voltage of anti exciting converter 1, d is the switch conduction ratio of anti exciting converter 1, n
1for the former limit winding of high-frequency transformer T1 and the turn ratio of vice-side winding; Light emitting diode D1 conducting is luminous, by selecting suitable circuit parameter, and the voltage V at electric capacity C1 two ends when anti exciting converter 1 is normally worked
ahigher than the burning voltage of voltage stabilizing diode D3, the emitter of PNP type triode V1 is reverse-biased, and light emitting diode D2 ends.
When inputting civil power dead electricity, i.e. accumulator 3 interdischarge interval, anti exciting converter 1 does not work, enhancement mode N-channel MOS field effect transistor Q2 forward conduction, the voltage at the electric capacity C1 two ends in dead electricity testing circuit is close to zero, light emitting diode D1 ends, the emitter current potential clamper of PNP type triode V1 is the burning voltage of voltage stabilizing diode D3 by voltage stabilizing diode D3, by selecting suitable circuit parameter, the voltage at resistance R3 two ends is made to be more than or equal to 0.7V, the emitter positively biased of PNP type triode V1, PNP type triode V1 conducting, light emitting diode D2 conducting is luminous.
When the under-voltage and civil power dead electricity of accumulator 3, if enhancement mode N-channel MOS field effect transistor Q2 turns off, light emitting diode D1 and light emitting diode D2 all ends.
Embodiment 2
As shown in Figure 2, the working state monitoring of the uninterrupted switch power supply in the present embodiment and indicating circuit, as different from Example 1: described high-frequency transformer is high-frequency transformer T2, described disconnector converter is by high-frequency transformer T2, enhancement mode N-channel MOS field effect transistor Q3, commutation diode D6, sustained diode 7, the forward converter 2 that inductance L 1 and electric capacity C3 form, the different name end of the former limit winding of described high-frequency transformer T2 is the cathode voltage input end ZVi+ of forward converter 2, the source electrode of described enhancement mode N-channel MOS field effect transistor Q3 is the cathode voltage input end ZVi-of forward converter 2, the Same Name of Ends of the former limit winding of described high-frequency transformer T2 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q3, the anode of described switching diode D4 and the anode of commutation diode D6 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T2, the negative electrode of described commutation diode D6 connects with the negative electrode of one end of inductance L 1 and sustained diode 7, the other end of described inductance L 1 connects with one end of electric capacity C3, and be the cathode voltage output terminal ZVo+ of forward converter 2, the different name end of the vice-side winding of described high-frequency transformer T2 connects with the other end of the anode of sustained diode 7 and electric capacity C3, and be the cathode voltage output terminal ZVo-of forward converter 2, described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q4, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the cathode voltage output terminal ZVo-of forward converter 2, and with the working state monitoring of uninterrupted switch power supply and the reference of indicating circuit 4 connect, the source electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the negative pole of accumulator 3, and the positive pole of described accumulator 3 connects with the cathode voltage output terminal ZVo+ of forward converter 2.All the other structures are all identical with embodiment 1.During concrete enforcement, the cathode voltage input end ZVi+ of described forward converter 2 and cathode voltage input end ZVi-connects with the cathode output end of external power source and cathode output end respectively, the grid of described enhancement mode N-channel MOS field effect transistor Q3 connects with outside first pwm control signal, and the grid of described enhancement mode N-channel MOS field effect transistor Q4 connects with outside second pwm control signal; Load RL is connected between the cathode voltage output terminal ZVo+ of described forward converter 2 and cathode voltage output terminal ZVo-.
In the present embodiment, principle of work of the present utility model is:
Normal in civil power input, namely forward converter 2 normally works and makes between accumulator 3 charge period, enhancement mode N-channel MOS field effect transistor Q4 reverse-conducting, now high-frequency transformer T2 secondary voltage is powered through commutation diode D6 with for the inductance L 1 of energy storage filtering to load RL, meanwhile, switching diode D4 rectification conducting, high-frequency transformer T2 vice-side winding is charged to electric capacity C1 by switching diode D4 and resistance R4, after entering stable state, the voltage stabilization at electric capacity C1 two ends in
v '
ifor inputting the supply voltage of forward converter 2, the switch conduction ratio that d ' is forward converter 2, n
2for the former limit winding of high-frequency transformer T2 and the turn ratio of vice-side winding; Light emitting diode D1 conducting is luminous, by selecting suitable circuit parameter, and the voltage V ' at electric capacity C1 two ends when forward converter 2 is normally worked
ahigher than the burning voltage of voltage stabilizing diode D3, the emitter of PNP type triode V1 is reverse-biased, and light emitting diode D2 ends.
When inputting civil power dead electricity, namely during accumulator puts 3 electricity, forward converter 2 does not work, enhancement mode N-channel MOS field effect transistor Q4 forward conduction, the voltage at the electric capacity C1 two ends in dead electricity testing circuit is close to zero, light emitting diode D1 ends, the emitter current potential clamper of PNP type triode V1 is the burning voltage of voltage stabilizing diode D3 by voltage stabilizing diode D3, by selecting suitable circuit parameter, the voltage at resistance R3 two ends is made to be more than or equal to 0.7V, the emitter positively biased of PNP type triode V1, PNP type triode V1 conducting, light emitting diode D2 conducting is luminous.
When the under-voltage and civil power dead electricity of accumulator 3, if enhancement mode N-channel MOS field effect transistor Q4 turns off, light emitting diode D1 and light emitting diode D2 all ends.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (3)
1. the working state monitoring of a uninterrupted switch power supply and indicating circuit, described uninterrupted switch power supply comprises disconnector converter and accumulator (3), and for being switched on or switched off the accumulator cell charging and discharging switch of disconnector converter and accumulator (3), described disconnector converter comprises high-frequency transformer, it is characterized in that: the working state monitoring of described uninterrupted switch power supply and indicating circuit (4) comprise dead electricity testing circuit, charge in batteries indicating circuit and battery discharging detect indicating circuit, described dead electricity testing circuit is by electric capacity C1, switching diode D4 and resistance R4 forms, the described anode of switching diode D4 connects with the Same Name of Ends of the vice-side winding of high-frequency transformer, the negative electrode of described switching diode D4 connects with one end of resistance R4, the other end of described resistance R4 connects with one end of electric capacity C1, the described other end of electric capacity C1 connects with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, described charge in batteries indicating circuit is made up of light emitting diode D1 and resistance R1, the anode of described light emitting diode D1 connects with the link of resistance R4 and electric capacity C1, the negative electrode of described light emitting diode D1 connects with one end of resistance R1, and the described other end of resistance R1 connects with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, described battery discharging detects indicating circuit by resistance R2, resistance R3, resistance R5, resistance R6, PNP type triode V1, zener diode D3 and light emitting diode D2 forms, described resistance R1, resistance R2 and resistance R3 constitutes pressure divider circuit, the base stage of described PNP type triode V1 is connected with the negative electrode of light emitting diode D1 by resistance R2, the collector of described PNP type triode V1 is connected with the anode of light emitting diode D2 by resistance R6, the described negative electrode of light emitting diode D2 connects with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, the emitter of described PNP type triode V1 connects with the negative electrode of one end of resistance R5 and zener diode D3, the other end of described resistance R5 connects with the cathode voltage output terminal of disconnector converter, the described anode of zener diode D3 connects with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, described resistance R3 is connected between the base stage of PNP type triode V1 and emitter.
2. according to working state monitoring and the indicating circuit of a kind of uninterrupted switch power supply according to claim 1, it is characterized in that: described high-frequency transformer is high-frequency transformer T1, described disconnector converter is by high-frequency transformer T1, enhancement mode N-channel MOS field effect transistor Q1, the anti exciting converter (1) that commutation diode D5 and electric capacity C2 forms, the different name end of the former limit winding of described high-frequency transformer T1 is the cathode voltage input end FVi+ of anti exciting converter (1), the source electrode of described enhancement mode N-channel MOS field effect transistor Q1 is the cathode voltage input end FVi-of anti exciting converter (1), the Same Name of Ends of the former limit winding of described high-frequency transformer T1 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q1, the anode of described switching diode D4 and the anode of commutation diode D5 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T1, the negative electrode of described commutation diode D5 connects with one end of electric capacity C2, and be the cathode voltage output terminal FVo+ of anti exciting converter (1), the different name end of the vice-side winding of described high-frequency transformer T1 connects with the other end of electric capacity C2, and be the cathode voltage output terminal FVo-of anti exciting converter (1), described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q2, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the cathode voltage output terminal FVo-of anti exciting converter (1), and connect with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, the source electrode of described enhancement mode N-channel MOS field effect transistor Q2 connects with the negative pole of accumulator (3), and the positive pole of described accumulator (3) connects with the cathode voltage output terminal FVo+ of anti exciting converter (1).
3. according to working state monitoring and the indicating circuit of a kind of uninterrupted switch power supply according to claim 1, it is characterized in that: described high-frequency transformer is high-frequency transformer T2, described disconnector converter is by high-frequency transformer T2, enhancement mode N-channel MOS field effect transistor Q3, commutation diode D6, sustained diode 7, the forward converter (2) that inductance L 1 and electric capacity C3 form, the different name end of the former limit winding of described high-frequency transformer T2 is the cathode voltage input end ZVi+ of forward converter (2), the source electrode of described enhancement mode N-channel MOS field effect transistor Q3 is the cathode voltage input end ZVi-of forward converter (2), the Same Name of Ends of the former limit winding of described high-frequency transformer T2 connects with the drain electrode of enhancement mode N-channel MOS field effect transistor Q3, the anode of described switching diode D4 and the anode of commutation diode D6 all connect with the Same Name of Ends of the vice-side winding of high-frequency transformer T2, the negative electrode of described commutation diode D6 connects with the negative electrode of one end of inductance L 1 and sustained diode 7, the other end of described inductance L 1 connects with one end of electric capacity C3, and be the cathode voltage output terminal ZVo+ of forward converter (2), the different name end of the vice-side winding of described high-frequency transformer T2 connects with the other end of the anode of sustained diode 7 and electric capacity C3, and be the cathode voltage output terminal ZVo-of forward converter (2), described accumulator cell charging and discharging switch is made up of enhancement mode N-channel MOS field effect transistor Q4, the drain electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the cathode voltage output terminal ZVo-of forward converter (2), and connect with the reference ground of indicating circuit (4) with the working state monitoring of uninterrupted switch power supply, the source electrode of described enhancement mode N-channel MOS field effect transistor Q4 connects with the negative pole of accumulator (3), and the positive pole of described accumulator (3) connects with the cathode voltage output terminal ZVo+ of forward converter (2).
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| CN109739287A (en) * | 2018-12-10 | 2019-05-10 | 江苏科技大学 | A kind of monitoring unit and its implementation |
| CN109814645A (en) * | 2018-12-10 | 2019-05-28 | 江苏科技大学 | A kind of warm and humid survey monitoring unit of silo and its implementation |
| CN109816930A (en) * | 2018-12-10 | 2019-05-28 | 江苏科技大学 | A kind of warm and humid monitoring unit and its implementation |
| CN109816930B (en) * | 2018-12-10 | 2020-12-15 | 江苏科技大学 | Temperature and humidity monitoring unit and implementation method thereof |
| WO2021088925A1 (en) * | 2019-11-07 | 2021-05-14 | 广州金升阳科技有限公司 | Forward-flyback switching power supply circuit |
| CN113889978A (en) * | 2021-10-12 | 2022-01-04 | 深圳市丛文安全电子有限公司 | External storage battery wiring protection circuit |
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