CN210074864U - Power supply switching circuit of solar commercial power complementary controller - Google Patents
Power supply switching circuit of solar commercial power complementary controller Download PDFInfo
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- CN210074864U CN210074864U CN201920556879.6U CN201920556879U CN210074864U CN 210074864 U CN210074864 U CN 210074864U CN 201920556879 U CN201920556879 U CN 201920556879U CN 210074864 U CN210074864 U CN 210074864U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model discloses a complementary controller power supply switching circuit of solar energy commercial power, it includes: the control circuit comprises a battery, a direct current power supply unit, a voltage output unit, a switching unit, a first control unit and a second control unit, wherein after control signals are input by the first control unit and the second control unit together, the first control unit and the second control unit respectively control the switching unit to switch the power supply of the battery and the direct current power supply unit, and the voltage input by the battery or the direct current power supply unit is filtered by the voltage output unit and then output to a lamp source circuit. The utility model discloses a complementary design ensures that two sets of power supply system can not insert simultaneously, and can guarantee all the way power and normally insert anytime, can effectually prevent that the problem of lamp sudden strain of a muscle and system's outage from appearing when switching by equipment simultaneously.
Description
Technical Field
The utility model relates to a commercial power and complementary lamp system technical field of solar energy, in particular to complementary controller power supply switching circuit of solar energy commercial power.
Background
And the commercial power complementary controller is used for a commercial power and solar complementary lamp system. When the weather is fine and the solar energy working state is good, the battery has enough electric quantity and the light source is powered by the battery. When the weather is not ideal, the solar energy cannot be fully charged with the energy consumed by the battery, the electric quantity of the battery is consumed to a certain degree, and in order to ensure the power supply of the light source, the controller is switched to the commercial power for inputting, and the power is supplied to the light source after being converted by the controller. When the solar energy is enough to charge the battery, the controller cuts off the commercial power input and then the battery supplies power. Therefore, the dual-power complementary power supply illumination system composed of solar energy and commercial power can effectively solve the problem of unstable solar energy utilization, properly reduce the capacities of the solar cell and the battery, reduce the cost of developing and utilizing the solar energy technology, and meet the requirements of system reliability and economy.
However, the existing commercial power complementary controller generally realizes the power supply switching between the battery and the commercial power through a relay. However, the relay is used for switching, the response speed is low, and the problems of lamp flashing and system power failure are easy to occur in the power supply switching process.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a power switching circuit for a solar energy and commercial power complementary controller, which can effectively prevent the device from flashing and system power failure when switching.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a power supply switching circuit of a solar commercial power complementary controller comprises a voltage output unit, a switching unit, a first control unit and a second control unit, wherein after control signals are input by the first control unit and the second control unit together, the first control unit and the second control unit respectively control the switching unit to switch power supplies of a battery and a direct current power supply unit, and voltage input by the battery or the direct current power supply unit is filtered by the voltage output unit and then output to a lamp source circuit.
The power supply switching circuit of the solar commercial power complementary controller comprises a switching unit, a first MOS tube, a second MOS tube, a third MOS tube, a first voltage division unit and a second voltage division unit, wherein a source electrode of the first MOS tube is connected with a negative electrode of a battery and the first voltage division unit, a grid electrode of the first MOS tube is connected with the first voltage division unit and the first control unit respectively, a drain electrode of the first MOS tube is connected with a source electrode of the second MOS tube, the first voltage division unit is connected with the battery and the direct current power supply unit respectively, a grid electrode of the second MOS tube is connected with the second voltage division unit and the first control unit, a drain electrode of the second MOS tube is connected with a source electrode of the third MOS tube, the drain electrode of the third MOS tube and the grid electrode of the third MOS tube are connected with the second control unit, and the second voltage division unit is connected with the battery and the direct current power supply unit respectively.
In the power supply switching circuit of the solar commercial power complementary controller, the first voltage division unit comprises a first resistor and a second resistor, one end of the first resistor is connected with the anode of the battery and the anode of the direct current power supply unit respectively, the other end of the first resistor is connected with the grid of the first MOS tube, one end of the first control unit and one end of the second resistor respectively, and the other end of the second resistor is connected with the cathode of the battery.
In the power supply switching circuit of the solar commercial power complementary controller, the second voltage division unit comprises a third resistor and a fourth resistor, one end of the third resistor is connected with the anode of the battery and the anode of the direct current power supply unit respectively, the other end of the third resistor is connected with the grid of the second MOS tube, one end of the first control unit and one end of the fourth resistor respectively, and the other end of the fourth resistor is grounded.
In the power supply switching circuit of the solar commercial power complementary controller, the first control unit comprises a first triode, a second triode, a third triode, a first diode, a second diode, a fifth resistor, a sixth resistor and a seventh resistor, wherein one end of the fifth resistor inputs a control signal, the other end of the fifth resistor is connected with the base electrode of the first triode, the emitter electrode of the first triode inputs VCC voltage, the collector electrode of the first triode is respectively connected with the anode of the first diode and the anode of the second diode, the cathode of the first diode is connected with one end of the sixth resistor, the cathode of the second diode is connected with one end of the seventh resistor, the other end of the sixth resistor is connected with the base electrode of the second triode, the collector electrode of the second triode is respectively connected with the other end of the first resistor, one end of the second resistor and the grid electrode of the first MOS tube, the other end of the seventh resistor is connected with the base electrode of the third triode, and the collector electrode of the third triode is respectively connected with the other end of the third resistor, one end of the fourth resistor and the grid electrode of the second MOS tube.
In the power switching circuit of the solar commercial power complementary controller, the first control unit further comprises a third diode, a fourth diode, a first capacitor and a second capacitor, one end of the first capacitor is respectively connected with the negative electrode of the third diode, the other end of the first resistor, one end of the second resistor, the grid electrode of the first MOS tube and the collector electrode of the second triode, the other end of the first capacitor is connected with the negative electrode of the battery, the positive electrode of the third diode is connected with the negative electrode of the battery, one end of the second capacitor is respectively connected with the negative electrode of the fourth diode, the other end of the third resistor, one end of the fourth resistor, the grid electrode of the second MOS tube and the collector electrode of the third triode, the other end of the first capacitor is grounded, and the positive electrode of the third diode is grounded.
The complementary controller power supply switching circuit of solar energy commercial power in, first control unit still includes eighth resistance, ninth resistance and tenth resistance, the projecting pole and the input VCC voltage of first triode are connected to the one end of eighth resistance, the base of first triode and the other end of fifth resistance are connected respectively to the other end of eighth resistance, the other end of sixth resistance and the base of second triode are connected respectively to the one end of ninth resistance, the projecting pole of second triode and the negative pole of battery are connected respectively to the other end of ninth resistance, the other end of seventh resistance and the base of third triode are connected respectively to the one end of tenth resistance, the projecting pole and the ground connection of third triode are connected to the other end of tenth resistance.
In the power switching circuit of the solar commercial power complementary controller, the second control unit comprises a fourth triode, a fifth triode, a sixth triode, an eleventh resistor, a twelfth resistor, a thirteenth resistor and a fourteenth resistor, wherein a control signal is input at one end of the eleventh resistor, the other end of the eleventh resistor is connected with the base electrode of the fourth triode, a VCC voltage is input at the collector electrode of the fourth triode, one end of the twelfth resistor is connected with the emitter electrode of the fourth triode, the other end of the twelfth resistor is connected with the base electrode of the fifth triode, a VCC voltage is input at the collector electrode of the fifth triode, one end of the thirteenth resistor is connected with the emitter electrode of the fifth triode, the base electrode of the sixth triode is connected with the other end of the sixth triode, the emitter electrode of the sixth triode is connected with the negative electrode of the direct current supply unit, and the collector electrode of the sixth triode is respectively connected with one end of the fourteenth resistor and the drain electrode of the third MOS, the other end of the fourteenth resistor is connected with the positive electrode of the battery.
In the power switching circuit of the solar commercial power complementary controller, the second control unit further comprises a fifteenth resistor, a sixteenth resistor and a seventeenth resistor, wherein one end of the fifteenth resistor is respectively connected with the other end of the eleventh resistor and the base electrode of the fourth triode, the other end of the fifteenth resistor is connected with the collector electrode of the fourth triode, one end of the sixteenth resistor is respectively connected with the base electrode of the fifth triode and the other end of the twelfth resistor, the other end of the sixteenth resistor is connected with the emitter electrode of the fifth triode, one end of the seventeenth resistor is respectively connected with the other end of the thirteenth resistor and the base electrode of the sixth triode, and the other end of the seventeenth resistor is connected with the emitter electrode of the sixth triode.
In the power switching circuit of the solar commercial power complementary controller, the second control unit further comprises a fifth diode and a sixth diode, the anode of the fifth diode is respectively connected with the emitter of the fifth triode and the other end of the sixteenth resistor, the cathode of the fifth diode is connected with one end of the thirteenth resistor, the anode of the sixth diode is respectively connected with the emitter of the sixth triode, the other end of the seventeenth resistor, the drain of the third MOS transistor and the cathode of the dc power supply unit, and the cathode of the sixth diode is respectively connected with the anode of the battery and the anode of the dc power supply unit.
Compared with the prior art, the utility model discloses a solar energy commercial power complementary control ware power switching circuit, it includes: the control circuit comprises a battery, a direct current power supply unit, a voltage output unit, a switching unit, a first control unit and a second control unit, wherein after control signals are input by the first control unit and the second control unit together, the first control unit and the second control unit respectively control the switching unit to switch the power supply of the battery and the direct current power supply unit, and the voltage input by the battery or the direct current power supply unit is filtered by the voltage output unit and then output to a lamp source circuit. The utility model discloses a complementary design ensures that two sets of power supply system can not insert simultaneously, and can guarantee all the way power and normally insert anytime, can effectually prevent that the problem of lamp sudden strain of a muscle and system's outage from appearing when switching by equipment simultaneously.
Drawings
Fig. 1 is a schematic circuit diagram of a power switching circuit of a solar commercial power complementary controller provided by the present invention.
Detailed Description
The utility model provides a solar energy commercial power complementary control ware power switching circuit, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Please refer to fig. 1, which is a schematic circuit diagram of a power switching circuit of a solar energy and commercial power complementary controller according to the present invention, the power switching circuit of the solar energy and commercial power complementary controller includes: the power supply system comprises a battery, a direct current power supply unit, a voltage output unit 100, a switching unit 200, a first control unit 300 and a second control unit 400, wherein after control signals are input by the first control unit 300 and the second control unit 400 together, the first control unit 300 and the second control unit 200 are respectively controlled to switch the power supply of the battery and the direct current power supply unit, and the voltage input by the battery or the direct current power supply unit is filtered by the voltage output unit 100 and then output to a lamp source circuit.
The battery is respectively connected with the voltage output unit 100, the switching unit 200, the first control unit 300 and the second control unit 400, and the direct current supply unit is also respectively connected with the voltage output unit 100, the switching unit 200, the first control unit 300 and the second control unit 400; the voltage output unit 100 may filter and output the current provided by the battery or the dc power supply unit to the light source, thereby implementing the normal operation of the light source. The direct current power supply unit is specifically used for supplying 24V direct current; the voltage output unit 100 includes elements such as inductance, electric capacity and diode, and the skilled person in the art can set for according to actual need, the utility model discloses this is not repeated.
In a specific embodiment, the switching unit 200 includes a first MOS transistor Q1, a second MOS transistor Q2, a third MOS transistor Q3, a first voltage dividing unit and a second voltage dividing unit, a source of the first MOS transistor Q1 is connected to a negative electrode of the battery and the first voltage dividing unit, a gate of the first MOS transistor Q1 is connected to the first voltage dividing unit and the first control unit 300, a drain of the first MOS transistor Q1 is connected to a source of the second MOS transistor Q2, the first voltage dividing unit is further connected to the battery and the dc power supply unit, a gate of the second MOS transistor Q2 is connected to the second voltage dividing unit and the first control unit 300, a drain of the second MOS transistor Q2 is connected to a source of the third MOS transistor Q3, a drain of the third MOS transistor Q3 and a gate of the third MOS transistor Q3 are both connected to the second control unit 400, and the second voltage dividing unit is further connected to the battery and the dc power supply unit.
The first control unit 300 and the second control unit 400 control the on and off of the first MOS transistor Q1 and the second MOS transistor Q2 in the switching unit 200, so that the on and off of a battery power supply line can be controlled, and whether a battery is adopted for power supply can be selected; in addition, the first control unit 300 and the second control unit 400 control the on/off of the third MOS transistor Q3 in the switching unit 200, so that the on/off of the power supply line of the dc power supply unit can be controlled, and whether the dc power supply unit is used for supplying power can be selected.
Further, the first voltage division unit comprises a first resistor R1 and a second resistor R2, one end of the first resistor R1 is connected to the positive electrode of the battery and the positive electrode of the dc power supply unit, the other end of the first resistor R1 is connected to the gate of the first MOS transistor Q1, one end of the first control unit 300 and one end of the second resistor R2, and the other end of the second resistor R2 is connected to the negative electrode of the battery.
Further, the second voltage division unit includes a third resistor R3 and a fourth resistor R4, one end of the third resistor R3 is connected to the positive electrode of the battery and the positive electrode of the dc power supply unit, the other end of the third resistor R3 is connected to the gate of the second MOS transistor Q2, one end of the first control unit 300 and one end of the fourth resistor R4, and the other end of the fourth resistor R4 is grounded.
The first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are voltage dividing resistors, and the voltage input by the battery or the dc power supply unit can be divided by the first resistor R1 and the second resistor R2, so that the gate of the first MOS transistor Q1 is at a high level; meanwhile, the voltage input by the battery or the dc power supply unit may be divided by the third resistor R3 and the fourth resistor R4, so that the gate of the second MOS transistor Q2 is at a high level.
In a more specific embodiment, the first control unit 300 includes a first transistor Q4, a second transistor Q5, a third transistor Q6, a first diode D1, a second diode D2, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7, one end of the fifth resistor R5 inputs a control signal, the other end of the fifth resistor R5 is connected to the base of the first transistor Q4, the emitter of the first transistor Q4 inputs a VCC voltage, the collector of the first transistor Q4 is connected to the anode of the first diode D1 and the anode of the second diode D2, respectively, the cathode of the first diode D1 is connected to one end of the sixth resistor R6, the cathode of the second diode D2 is connected to one end of the seventh resistor R7, the other end of the sixth resistor R6 is connected to the base of the second transistor Q5, the collector of the second transistor Q5 is connected to the other end of the first resistor R1, the first resistor R87458, and the gate of the MOS 1, the other end of the seventh resistor R7 is connected to the base of the third transistor Q6, and the collector of the third transistor Q6 is connected to the other end of the third resistor R3, one end of the fourth resistor R4 and the gate of the second MOS transistor Q2, respectively.
The first triode Q4, the second triode Q5 and the third triode Q6 function as switching tubes; the first diode D1 and the second diode D2 are used for preventing current from flowing reversely so as to damage front-end control equipment; the fifth resistor R5, the sixth resistor R6 and the seventh resistor R7 all play a role in limiting current.
Further, the first control unit 300 further includes a third diode D3, a fourth diode D4, a first capacitor C1 and a second capacitor C2, wherein one end of the first capacitor C1 is connected to a cathode of the third diode D3, the other end of the first resistor R1, one end of the second resistor R2, a gate of the first MOS transistor Q1 and a collector of the second transistor Q5, the other end of the first capacitor C1 is connected to the cathode of the battery, an anode of the third diode D3 is connected to the cathode of the battery, one end of the second capacitor C2 is connected to a cathode of the fourth diode D4, the other end of the third resistor R3, one end of the fourth resistor R4, a gate of the second MOS transistor Q2 and a collector of the third transistor Q6, the other end of the first capacitor C1 is grounded, and an anode of the third diode D3 is grounded.
The third diode D3 is connected in parallel between the collector and the emitter of the second triode Q5 in an inverted manner, and plays a role in protecting the second triode Q5; the fourth diode D4 is connected in parallel between the collector and the emitter of the third triode Q6 in an inverted manner, and plays a role in protecting the third triode Q6; the first capacitor C1 and the second capacitor C2 are used for filtering.
Further, the first control unit 300 further includes an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10, wherein one end of the eighth resistor R8 is connected to the emitter of the first transistor Q4 and inputs VCC voltage, the other end of the eighth resistor R8 is connected to the base of the first transistor Q4 and the other end of the fifth resistor R5, one end of the ninth resistor R9 is connected to the other end of the sixth resistor R6 and the base of the second transistor Q5, the other end of the ninth resistor R9 is connected to the emitter of the second transistor Q5 and the negative electrode of the battery, one end of the tenth resistor R10 is connected to the other end of the seventh resistor R7 and the base of the third transistor Q6, and the other end of the tenth resistor R10 is connected to the emitter of the third transistor Q6 and grounded.
The eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 are respectively used for generating leakage current when the first triode Q4, the second triode Q5 and the third triode Q6 are cut off, so that the corresponding triodes are reliably in a cut-off state, and the reliability of the first triode Q4, the second triode Q5 and the third triode Q6 is improved.
In a more specific embodiment, the second control unit 400 includes a fourth transistor Q7, a fifth transistor Q8, a sixth transistor Q9, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13 and a fourteenth resistor R14, one end of the eleventh resistor R11 inputs a control signal, the other end of the eleventh resistor R11 is connected to a base of the fourth transistor Q7, a collector of the fourth transistor Q7 inputs a VCC voltage, an emitter of the fourth transistor Q7 is connected to one end of the twelfth resistor R12, the other end of the twelfth resistor R12 is connected to a base of the fifth transistor Q8, a collector of the fifth transistor Q8 inputs a VCC voltage, an emitter of the fifth transistor Q8 is connected to one end of the thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected to a base of the sixth transistor Q9, an emitter of the sixth transistor Q9 is connected to a negative electrode of the dc power supply unit, the collector of the sixth triode Q9 is connected to one end of a fourteenth resistor R14 and the drain of the third MOS transistor Q3, respectively, and the other end of the fourteenth resistor R14 is connected to the positive electrode of the battery.
The fourth triode Q7, the fifth triode Q8 and the sixth triode Q9 function as switching tubes, and the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13 and the fourteenth resistor R14 all function in limiting current.
Further, the second control unit 400 further includes a fifteenth resistor R15, a sixteenth resistor R16 and a seventeenth resistor R17, one end of the fifteenth resistor R15 is connected to the other end of the eleventh resistor R11 and the base of the fourth triode Q7, the other end of the fifteenth resistor R15 is connected to the collector of the fourth triode Q7, one end of the sixteenth resistor R16 is connected to the base of the fifth triode Q8 and the other end of the twelfth resistor R12, the other end of the sixteenth resistor R16 is connected to the emitter of the fifth triode Q8, one end of the seventeenth resistor R17 is connected to the other end of the thirteenth resistor R13 and the base of the sixth triode Q9, and the other end of the seventeenth resistor R17 is connected to the emitter of the sixth triode Q9. The fifteenth resistor R15, the sixteenth resistor R16 and the seventeenth resistor R17 are respectively used for improving the reliability of the fourth transistor Q7, the fifth transistor Q8 and the sixth transistor Q9.
Further, the second control unit 400 further includes a fifth diode D5 and a sixth diode D6, an anode of the fifth diode D5 is connected to an emitter of the fifth triode Q8 and the other end of the sixteenth resistor R16, a cathode of the fifth diode D5 is connected to one end of the thirteenth resistor R13, an anode of the sixth diode D6 is connected to an emitter of the sixth triode Q9, the other end of the seventeenth resistor R17, a drain of the third MOS transistor Q3 and a cathode of the dc power supply unit, and a cathode of the sixth diode D6 is connected to an anode of the battery and an anode of the dc power supply unit. Wherein, the fifth diode D5 and the sixth diode D6 are used for preventing current from flowing reversely when the corresponding power supply is turned off, thereby damaging the front-end control equipment.
For better understanding, the utility model discloses, following is right the utility model discloses a theory of operation carries out the detailed description:
the power supply switching circuit of the solar commercial power complementary controller is divided into two power supplies for supplying power, one power supply is a BATT (battery), and the other power supply is a 24V direct current power supply unit (+ 24V-24V). When the system is used normally, the battery supplies power, and when the electric quantity of the battery is insufficient, the system needs to be switched to the 24V direct current power supply unit to supply power through the direct current power supply unit. The working principle is as follows:
when the device is normally used, the device is powered by a battery, at the moment, the 24V/BAT control signal is at a high level (default high level), and the first triode Q4 is closed; at the same time, the second transistor Q5 and the third transistor Q6 remain off due to the absence of drive current. At this time, the battery voltage is divided by the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4, the grid of the first MOS transistor Q1 and the grid of the second MOS transistor Q2 are kept at high level respectively, the first MOS transistor Q1 and the second MOS transistor Q2 are conducted, the power supply line of the battery is connected at this time, and the system is powered by the battery.
Meanwhile, as the 24V/BAT control signal is at a high level, the fourth triode Q7 is turned on, so that the base voltage of the fifth triode Q8 is greater than 0.7V, and the fifth triode Q8 is also turned on; and the sixth transistor Q9 is also turned on because the fifth transistor Q8 is turned on to generate the driving voltage for the sixth transistor Q9; at this time, the third MOS transistor Q3 is turned off, resulting in the cutting off of the power supply line of the 24V dc power supply unit.
Then, when the system checks that the battery is not sufficiently powered, the 24V/BAT control signal outputs a low level, at which time the third transistor Q6 is turned off, resulting in the fifth transistor Q8 and the sixth transistor Q9 also being turned off; at this time, the gate voltage of the third MOS transistor Q3 rises, so that the third MOS transistor Q3 is turned on, the power supply of the 24V dc power supply unit is switched on, and the system is switched to 24V dc power supply.
Meanwhile, the first triode Q4 is turned on, and current passes through the first diode D1 and the sixth resistor R6 to supply power to the second triode Q5, so that the second triode Q5 is turned on, the gate voltage of the first MOS transistor Q1 is pulled low, and the first MOS transistor Q1 is turned off; meanwhile, the current supplies power to the third triode Q6 through the second diode D2 and the seventh resistor R7, so that the third triode Q6 is turned on, the gate voltage of the second MOS transistor Q2 is pulled low, and the second MOS transistor Q2 is turned off; when the second MOS transistor Q2 and the third MOS transistor Q3 are turned off, the power supply line of the battery is cut off.
The circuit is used for realizing seamless switching in two power supply loops in solar control, and can realize switching within 1ms, so that the problems of lamp flashing and system power failure in the switching process can be effectively avoided.
To sum up, the utility model provides a solar energy commercial power complementary control ware power switching circuit, it includes: the control circuit comprises a battery, a direct current power supply unit, a voltage output unit, a switching unit, a first control unit and a second control unit, wherein after control signals are input by the first control unit and the second control unit together, the first control unit and the second control unit respectively control the switching unit to switch the power supply of the battery and the direct current power supply unit, and the voltage input by the battery or the direct current power supply unit is filtered by the voltage output unit and then output to a lamp source circuit. The utility model discloses a complementary design ensures that two sets of power supply system can not insert simultaneously, and can guarantee all the way power and normally insert anytime, and can effectually prevent that the problem of lamp sudden strain of a muscle and system's outage from appearing when switching by equipment.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a complementary controller power supply switching circuit of solar energy commercial power, includes battery and direct current supply unit, its characterized in that still includes voltage output unit, switching unit, first control unit and second control unit, and after first control unit and second control unit input control signal together, control switching unit switches the power supply of battery and direct current supply unit respectively to make the voltage of battery or direct current supply unit input export lamp source circuit after voltage output unit filters.
2. The power switching circuit of the solar commercial power complementary controller according to claim 1, wherein the switching unit comprises a first MOS transistor, a second MOS transistor, a third MOS transistor, a first voltage division unit and a second voltage division unit, a source electrode of the first MOS transistor is connected to a negative electrode of the battery and the first voltage division unit, a gate electrode of the first MOS transistor is connected to the first voltage division unit and the first control unit, a drain electrode of the first MOS transistor is connected to a source electrode of the second MOS transistor, the first voltage division unit is further connected to the battery and the dc power supply unit, a gate electrode of the second MOS transistor is connected to the second voltage division unit and the first control unit, a drain electrode of the second MOS transistor is connected to a source electrode of the third MOS transistor, a drain electrode of the third MOS transistor and a gate electrode of the third MOS transistor are both connected to the second control unit, and the second voltage division unit is further connected to the battery and the dc power supply unit.
3. The power switching circuit of the solar commercial power complementary controller according to claim 2, wherein the first voltage division unit comprises a first resistor and a second resistor, one end of the first resistor is connected to the positive electrode of the battery and the positive electrode of the dc power supply unit, the other end of the first resistor is connected to the gate of the first MOS transistor, one end of the first control unit and one end of the second resistor, and the other end of the second resistor is connected to the negative electrode of the battery.
4. The power switching circuit of the solar commercial power complementary controller according to claim 3, wherein the second voltage division unit comprises a third resistor and a fourth resistor, one end of the third resistor is connected to the positive electrode of the battery and the positive electrode of the direct current power supply unit, the other end of the third resistor is connected to the grid of the second MOS transistor, one end of the first control unit and one end of the fourth resistor, and the other end of the fourth resistor is grounded.
5. The power switching circuit of claim 4, wherein the first control unit comprises a first triode, a second triode, a third triode, a first diode, a second diode, a fifth resistor, a sixth resistor and a seventh resistor, wherein a control signal is input at one end of the fifth resistor, a base of the first triode is connected at the other end of the fifth resistor, a VCC voltage is input at an emitter of the first triode, a collector of the first triode is connected to an anode of the first diode and an anode of the second diode respectively, a cathode of the first diode is connected to one end of the sixth resistor, a cathode of the second diode is connected to one end of the seventh resistor, a base of the second triode is connected to the other end of the sixth resistor, and a collector of the second triode is connected to the other end of the first resistor respectively, One end of the second resistor and the grid electrode of the first MOS tube, the other end of the seventh resistor is connected with the base electrode of the third triode, and the collector electrode of the third triode is respectively connected with the other end of the third resistor, one end of the fourth resistor and the grid electrode of the second MOS tube.
6. The power supply switching circuit of the solar commercial power complementary controller according to claim 5, wherein the first control unit further comprises a third diode, a fourth diode, a first capacitor and a second capacitor, one end of the first capacitor is respectively connected with a cathode of the third diode, the other end of the first resistor, one end of the second resistor, a grid of the first MOS transistor and a collector of the second triode, the other end of the first capacitor is connected with a cathode of the battery, an anode of the third diode is connected with a cathode of the battery, one end of the second capacitor is respectively connected with a cathode of the fourth diode, the other end of the third resistor, one end of the fourth resistor, a grid of the second MOS transistor and a collector of the third triode, the other end of the first capacitor is grounded, and an anode of the third diode is grounded.
7. The power switching circuit of the solar energy and commercial power complementary controller according to claim 6, wherein the first control unit further comprises an eighth resistor, a ninth resistor and a tenth resistor, wherein one end of the eighth resistor is connected with the emitter of the first triode and inputs VCC voltage, the other end of the eighth resistor is connected with the base of the first triode and the other end of the fifth resistor respectively, one end of the ninth resistor is connected with the other end of the sixth resistor and the base of the second triode respectively, the other end of the ninth resistor is connected with the emitter of the second triode and the negative electrode of the battery respectively, one end of the tenth resistor is connected with the other end of the seventh resistor and the base of the third triode respectively, and the other end of the tenth resistor is connected with the emitter of the third triode and grounded.
8. The power switching circuit of claim 7, wherein the second control unit comprises a fourth triode, a fifth triode, a sixth triode, an eleventh resistor, a twelfth resistor, a thirteenth resistor and a fourteenth resistor, one end of the eleventh resistor inputs a control signal, the other end of the eleventh resistor is connected to the base of the fourth triode, the collector of the fourth triode inputs a VCC voltage, the emitter of the fourth triode is connected to one end of the twelfth resistor, the other end of the twelfth resistor is connected to the base of the fifth triode, the collector of the fifth triode inputs a VCC voltage, the emitter of the fifth triode is connected to one end of the thirteenth resistor, the other end of the thirteenth resistor is connected to the base of the sixth triode, the emitter of the sixth triode is connected to the negative electrode of the DC power supply unit, and the collector of the sixth triode is respectively connected with one end of a fourteenth resistor and the drain of the third MOS transistor, and the other end of the fourteenth resistor is connected with the anode of the battery.
9. The power switching circuit of claim 8, wherein the second control unit further comprises a fifteenth resistor, a sixteenth resistor and a seventeenth resistor, one end of the fifteenth resistor is connected to the other end of the eleventh resistor and the base of the fourth triode, the other end of the fifteenth resistor is connected to the collector of the fourth triode, one end of the sixteenth resistor is connected to the base of the fifth triode and the other end of the twelfth resistor, the other end of the sixteenth resistor is connected to the emitter of the fifth triode, one end of the seventeenth resistor is connected to the other end of the thirteenth resistor and the base of the sixth triode, and the other end of the seventeenth resistor is connected to the emitter of the sixth triode.
10. The power switching circuit of the solar energy and commercial power complementary controller according to claim 9, wherein the second control unit further comprises a fifth diode and a sixth diode, an anode of the fifth diode is connected to an emitter of the fifth triode and the other end of the sixteenth resistor, respectively, a cathode of the fifth diode is connected to one end of the thirteenth resistor, an anode of the sixth diode is connected to an emitter of the sixth triode, the other end of the seventeenth resistor, a drain of the third MOS transistor and a cathode of the dc power supply unit, respectively, and a cathode of the sixth diode is connected to an anode of the battery and an anode of the dc power supply unit, respectively.
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| CN201920556879.6U CN210074864U (en) | 2019-04-23 | 2019-04-23 | Power supply switching circuit of solar commercial power complementary controller |
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| CN201920556879.6U CN210074864U (en) | 2019-04-23 | 2019-04-23 | Power supply switching circuit of solar commercial power complementary controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552564A (en) * | 2022-04-27 | 2022-05-27 | 深圳市爱图仕影像器材有限公司 | Multichannel power supply switching circuit and lighting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552564A (en) * | 2022-04-27 | 2022-05-27 | 深圳市爱图仕影像器材有限公司 | Multichannel power supply switching circuit and lighting device |
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