CN104037932A - Emergency power supply control circuit and emergency power supply control device - Google Patents
Emergency power supply control circuit and emergency power supply control device Download PDFInfo
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- CN104037932A CN104037932A CN201410230104.1A CN201410230104A CN104037932A CN 104037932 A CN104037932 A CN 104037932A CN 201410230104 A CN201410230104 A CN 201410230104A CN 104037932 A CN104037932 A CN 104037932A
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- power supply
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Abstract
The invention belongs to the field of circuit control and provides an emergency power supply control circuit and an emergency power supply control device. The emergency power supply control circuit is characterized in that a sampling module is used for sampling the working voltage and the output current of a load in real time, a discharge control module is used for determining whether or not to control the emergency power supply to discharge according to the sampling data and discharge preset, a detection module is used for detecting the residual electric quantity of the emergency power supply in real time, and a charging control module is used for controlling a charging module to charge the emergency power supply or not by use of the detection data, and therefore, the emergency power supply is ensured to have sufficient electricity quantity for use in case of mains supply failure. The emergency power supply control circuit is capable of automatically switching to that the emergency power supply discharges for use by the load in case of mains supply failure, and therefore, the problem that the emergency power supply of the prior art cannot be connected to a main circuit to supply power to the load in case of mains supply failure is solved.
Description
Technical field
The invention belongs to circuit control field, relate in particular to a kind of emergency power supply control circuit and device.
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Background technology
The discovery of electricity and use have brought great facilitation to the development of human society, and modern construction more and more relies on electricity, and family life, work and manufacturing industry all need a large amount of electric energy.
But, electricity in use can not very ensure not power-off really, when civil power is due to fault power-off or while being starkly lower than the required minimum voltage of load, will have a strong impact on productive life and the study of life, life is caused to great inconvenience, even bring huge economic loss, for this reason, people have invented emergency power supply, but, emergency power supply is intelligence not, can only be by manually removing to open emergency power supply after fault occurs, such as flashlight etc., these emergency power supplies can not access family or workplace electric wire main line, can not solve in time the variety of issue that municipal power failure is brought.
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Summary of the invention
The invention provides a kind of emergency light control circuit, be intended to solve the problem that existing emergency power supply can not automatically switch load is powered in the time of municipal power failure.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of emergency power supply control circuit, for emergency power supply when the municipal power failure, load is powered, and described emergency power supply control circuit comprises:
Load driver module, is connected with the output of civil power, emergency power supply and the input of described load, for driving described load normally to work;
Sampling module, is connected with described load, samples for the operating voltage to described load and output current;
Detection module, is connected with described emergency power supply, for detection of the dump energy of described emergency power supply;
Charging module, is connected with the charging end of civil power and described emergency power supply, for described emergency power supply being charged according to the charging control signal receiving;
Charge control module, is connected with the output of described detection module and the control end of described charging module, sends described charging control signal to described charging module for the dump energy that detects when described detection module during lower than preset charged threshold value;
Control of discharge module, is connected with described sampling module and described emergency power supply, controls described emergency power supply during lower than default operating voltage threshold value discharge for the operating voltage of the load that samples when described sampling module.
Further, described load driver module comprises:
The direct current of described emergency power supply output is converted to the inverter unit of alternating current and drives the first load drive unit of described loaded work piece;
The input of described inverter unit is connected with the output of described emergency power supply, and the output of described inverter unit is connected with the input of described the first load drive unit, and the output of described the first load drive unit is connected with described load.
Further, described load driver module comprises:
Civil power is converted to galvanic rectification filtering unit and drives the second load drive unit of described loaded work piece;
The input of described rectification filtering unit is electrically connected with city, and the output of described rectification filtering unit is connected with the input of described the second load drive unit, and the output of described the second load drive unit is connected with described load.
Further, described charge control module is the first control chip, and the data input pin of described the first control chip is connected with the output of described detection module, and the control output end of described the first control chip is connected with the control end of described charging module.
Further, described control of discharge module is the second control chip, and the sampled data input of described the second control chip is connected with the output of described sampling module, and the control output end of described the second control chip is connected with the control end of described emergency power supply.
The present invention also provides a kind of emergency power supply control device, and described emergency power supply control device comprises the emergency power supply control circuit of load being powered for emergency power supply when the municipal power failure; Described emergency power supply control circuit comprises:
Load driver module, is connected with the output of civil power, emergency power supply and the input of described load, for driving described load normally to work;
Sampling module, is connected with described load, samples for the operating voltage to described load and output current;
Detection module, is connected with described emergency power supply, for detection of the dump energy of described emergency power supply;
Charging module, is connected with the charging end of civil power and described emergency power supply, for described emergency power supply being charged according to the charging control signal receiving;
Charge control module, is connected with the output of described detection module and the control end of described charging module, sends described charging control signal to described charging module for the dump energy that detects when described detection module during lower than preset charged threshold value;
Control of discharge module, is connected with described sampling module and described emergency power supply, controls described emergency power supply during lower than default operating voltage threshold value discharge for the operating voltage of the load that samples when described sampling module.
Further, in the time that described load is AC load, described emergency power supply control circuit also comprises:
Inverter module, is connected between described emergency power supply and described load driver module, is described load supplying for the direct current of described emergency power supply output being converted to after alternating current.
Further, described preset charged threshold value is 80% of described emergency power supply electric weight.
Further, described charge control module is the first control chip, and the data input pin of described the first control chip is connected with the output of described detection module, and the control output end of described the first control chip is connected with the control end of described charging module.
Further, described control of discharge module is the second control chip, and the sampled data input of described the second control chip is connected with the output of described sampling module, and the control output end of described the second control chip is connected with the control end of described emergency power supply.
In the present invention, by sampling module, the operating voltage to load and output current are sampled in real time, by control of discharge module according to sampled data with default electric discharge is default judges whether to control emergency power supply and discharge, detected in real time the dump energy of emergency power supply by detection module, whether charge control module charges to emergency power supply by this detection Data Control charging module, when ensureing that emergency power supply has enough electric weight for municipal power failure.Emergency power supply control circuit provided by the invention can automatically switch to by emergency power supply and discharge in the time of municipal power failure, and for load, while having solved municipal power failure, prior art emergency power supply can not be incorporated to the problem of main circuit powering load.
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Brief description of the drawings
Fig. 1 is the frame construction drawing of the emergency power supply control circuit that provides of the embodiment of the present invention;
Fig. 2 is the modular structure figure of the emergency power supply control circuit that provides of first embodiment of the invention;
Fig. 3 is the circuit structure diagram of the emergency power supply control circuit that provides of second embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
As shown in Figure 1, the emergency power supply control circuit that the embodiment of the present invention provides, powers to load for emergency power supply when the municipal power failure, and this emergency power supply control circuit comprises:
Load driver module 101, is connected with the output of civil power AC, emergency power supply 200 and the input of load 300, for driving load 300 normally to work;
Sampling module 102, is connected with load 300, samples for the operating voltage to load 300 and output current;
Detection module 103, is connected with emergency power supply 200, for detection of the dump energy of emergency power supply 200;
Charging module 104, is connected with the charging end of civil power AC and emergency power supply 200, for emergency power supply 200 being charged according to the charging control signal receiving;
Charge control module 105, is connected with the output of detection module 103 and the control end of charging module 104, sends charging control signal to charging module 104 for the dump energy that detects when detection module 103 during lower than preset charged threshold value;
Control of discharge module 106, is connected with sampling module 102 and emergency power supply 200, controls emergency power supply 200 during lower than default operating voltage threshold value load 300 is discharged for the operating voltage of the load that samples when sampling module 102.
In embodiments of the present invention, between charging module 104 and emergency power supply 200, indicating module can also be set, be used to indicate and whether emergency power supply 200 is charged.
Fig. 2 shows the modular structure figure of the emergency power supply control circuit that first embodiment of the invention provides, and for convenience of explanation, only lists the part relevant to the embodiment of the present invention, and details are as follows:
As shown in Figure 2, the load driver module 101 that first embodiment of the invention provides comprises: the direct current that emergency power supply 200 is exported is converted to the inverter unit 1011 of alternating current and the first load drive unit 1012 that drives load 300 to work;
The input of inverter unit 1011 is connected with the output of emergency power supply 200, and the output of inverter unit 1011 is connected with the input of the first load drive unit 1012, and the output of the first load drive unit 1012 is connected with load 300.
In embodiments of the present invention, load 300 is AC load, needs AC-powered, is direct current and emergency power supply 200 is exported, exports after being converted to alternating current with regard to the direct current that needs inverter that emergency power supply 200 is exported.
Fig. 3 shows the modular structure figure of the emergency power supply control circuit that second embodiment of the invention provides, and for convenience of explanation, only lists the part relevant to the embodiment of the present invention, and details are as follows:
As shown in Figure 3, the load driver module 101 that second embodiment of the invention provides comprises: the second load drive unit 1014 that civil power is converted to galvanic rectification filtering unit 1013 and drives load 300 to work;
The input of rectification filtering unit 1013 is connected with civil power AC, and the output of rectification filtering unit 1013 is connected with the input of the second load drive unit 1014, and the output of the second load drive unit 1014 is connected with load 300.
In embodiments of the present invention, load 300 is DC load, needs powered by direct current, now civil power output be alternating current, export after needing rectification filtering unit 1013 that city's alternating current is converted to direct current.
As Figure 2-3, as one embodiment of the invention, charge control module 105 is the first control chip U1, and the data input pin I/O1 of the first control chip is connected with the output of detection module 103, and the control output end I/O2 of the first control chip is connected with the control input end of charging module 104.
Further, as one embodiment of the invention, control of discharge module 106 is the second control chip U2, and the sampled data input I/O1 of the second control chip U2 is connected with the output of sampling module 102, and the control output end I/O2 of the second control chip U2 is connected with the control end of emergency power supply 200.
The embodiment of the present invention also provides a kind of emergency power supply control device, and described emergency power supply control device is wrapped and stated emergency power supply control circuit.
In embodiments of the present invention, by sampling module, the operating voltage to load and output current are sampled in real time, by control of discharge module according to sampled data with default electric discharge is default judges whether to control emergency power supply and discharge, detected in real time the dump energy of emergency power supply by detection module, whether charge control module charges to emergency power supply by this detection Data Control charging module, when ensureing that emergency power supply has enough electric weight for municipal power failure.Emergency power supply control circuit provided by the invention can automatically switch to by emergency power supply and discharge in the time of municipal power failure, and for load, while having solved municipal power failure, prior art emergency power supply can not be incorporated to the problem of main circuit powering load.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an emergency power supply control circuit, powers to load for emergency power supply when the municipal power failure, it is characterized in that, described emergency power supply control circuit comprises:
Load driver module, is connected with the output of civil power, emergency power supply and the input of described load, for driving described load normally to work;
Sampling module, is connected with described load, samples for the operating voltage to described load and output current;
Detection module, is connected with described emergency power supply, for detection of the dump energy of described emergency power supply;
Charging module, is connected with the charging end of civil power and described emergency power supply, for described emergency power supply being charged according to the charging control signal receiving;
Charge control module, is connected with the output of described detection module and the control end of described charging module, sends described charging control signal to described charging module for the dump energy that detects when described detection module during lower than preset charged threshold value;
Control of discharge module, is connected with described sampling module and described emergency power supply, controls described emergency power supply during lower than default operating voltage threshold value discharge for the operating voltage of the load that samples when described sampling module.
2. emergency power supply control circuit as claimed in claim 1, is characterized in that, described load driver module comprises: the direct current of described emergency power supply output is converted to the inverter unit of alternating current and drives the first load drive unit of described loaded work piece;
The input of described inverter unit is connected with the output of described emergency power supply, and the output of described inverter unit is connected with the input of described the first load drive unit, and the output of described the first load drive unit is connected with described load.
3. emergency power supply control circuit as claimed in claim 1, is characterized in that, described load driver module comprises: civil power is converted to galvanic rectification filtering unit and drives the second load drive unit of described loaded work piece;
The input of described rectification filtering unit is electrically connected with city, and the output of described rectification filtering unit is connected with the input of described the second load drive unit, and the output of described the second load drive unit is connected with described load.
4. emergency power supply control circuit as claimed in claim 1, it is characterized in that, described charge control module is the first control chip, the data input pin of described the first control chip is connected with the output of described detection module, and the control output end of described the first control chip is connected with the control end of described charging module.
5. emergency power supply control circuit as claimed in claim 1, it is characterized in that, described control of discharge module is the second control chip, the sampled data input of described the second control chip is connected with the output of described sampling module, and the control output end of described the second control chip is connected with the control end of described emergency power supply.
6. an emergency power supply control device, is characterized in that, described emergency power supply control device comprises the emergency power supply control circuit of load being powered for emergency power supply when the municipal power failure; Described emergency power supply control circuit comprises:
Load driver module, is connected with the output of civil power, emergency power supply and the input of described load, for driving described load normally to work;
Sampling module, is connected with described load, samples for the operating voltage to described load and output current;
Detection module, is connected with described emergency power supply, for detection of the dump energy of described emergency power supply;
Charging module, is connected with the charging end of civil power and described emergency power supply, for described emergency power supply being charged according to the charging control signal receiving;
Charge control module, is connected with the output of described detection module and the control end of described charging module, sends described charging control signal to described charging module for the dump energy that detects when described detection module during lower than preset charged threshold value;
Control of discharge module, is connected with described sampling module and described emergency power supply, controls described emergency power supply during lower than default operating voltage threshold value discharge for the operating voltage of the load that samples when described sampling module.
7. emergency power supply control circuit as claimed in claim 6, is characterized in that, described load driver module comprises: civil power is converted to galvanic rectification filtering unit and drives the second load drive unit of described loaded work piece;
The input of described rectification filtering unit is electrically connected with city, and the output of described rectification filtering unit is connected with the input of described the second load drive unit, and the output of described the second load drive unit is connected with described load.
8. emergency power supply control circuit as claimed in claim 6, is characterized in that, described load driver module comprises: civil power is converted to galvanic rectification filtering unit and drives the second load drive unit of described loaded work piece;
The input of described rectification filtering unit is electrically connected with city, and the output of described rectification filtering unit is connected with the input of described the second load drive unit, and the output of described the second load drive unit is connected with described load.
9. emergency power supply control circuit as claimed in claim 6, it is characterized in that, described charge control module is the first control chip, the data input pin of described the first control chip is connected with the output of described detection module, and the control output end of described the first control chip is connected with the control end of described charging module.
10. emergency power supply control circuit as claimed in claim 6, it is characterized in that, described control of discharge module is the second control chip, the sampled data input of described the second control chip is connected with the output of described sampling module, and the control output end of described the second control chip is connected with the control end of described emergency power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410230104.1A CN104037932A (en) | 2014-05-28 | 2014-05-28 | Emergency power supply control circuit and emergency power supply control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410230104.1A CN104037932A (en) | 2014-05-28 | 2014-05-28 | Emergency power supply control circuit and emergency power supply control device |
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| CN104037932A true CN104037932A (en) | 2014-09-10 |
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| CN201410230104.1A Pending CN104037932A (en) | 2014-05-28 | 2014-05-28 | Emergency power supply control circuit and emergency power supply control device |
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| CN109640479A (en) * | 2018-12-18 | 2019-04-16 | 苏州科思尼克照明科技有限公司 | A kind of lighting device of and constant power output emergency driving |
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Application publication date: 20140910 |