CN105553093A - Power supply circuit with real-time voltage detection for water pump system - Google Patents
Power supply circuit with real-time voltage detection for water pump system Download PDFInfo
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- CN105553093A CN105553093A CN201610101046.1A CN201610101046A CN105553093A CN 105553093 A CN105553093 A CN 105553093A CN 201610101046 A CN201610101046 A CN 201610101046A CN 105553093 A CN105553093 A CN 105553093A
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- power supply
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
- G01R19/16519—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using FET's
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
The invention relates to a power supply circuit with real-time voltage detection for a water pump system. The power supply circuit comprises a power supply module, a voltage detection module and a switching power supply module, wherein the power supply module comprises a solar power supply and a storage battery power supply; a charge module and a power supply switching module are connected between the solar power supply and the storage battery power supply; the power supply switching module comprises a first switch and a second switch; the first switch is connected with the solar power supply; the second switch is connected with the storage battery power supply; and the power supply switching module is used for switching three power supply selection gears of the storage battery power supply, the solar power supply and no power supply. The power supply circuit for the water pump system provided by the invention can adapt to a low-voltage range and can also adapt to a high-voltage range; by a mode of a switching power supply, the transformation ratio is determined by adjusting the conduction duty ratio of a switch MOS tube; and a stable voltage is output to reach the targets of stably driving a motor and keeping the working stability of a central processor and an electronic component, so that the stability of the system is further improved.
Description
Technical field
The invention belongs to water pump control field, relate to a kind of power supply circuits of water pump system of real-time detection with voltage.
Background technology
The continuous progress of Application of Solar Energy technology and photovoltaic power generation technology brings the development of photovoltaic water pump industry.Photovoltaic water pump is shown up prominently in irrigation industry, and obtains the favor of considerable developing country.The operation principle of photovoltaic water pump system is the electric power utilizing photovoltaic battery panel, by the power conversion effect of controller, drive direct current machine or alternating current machine thus drive water pump operation, being generally used for field irrigation, cattle breeding, the different occasions such as domestic water and fountain view.
In photovoltaic water pump controller application, need a road power supply to divide power supply and another road power supply to power to central processing unit and portions of electronics components and parts to motor driving part meet controller power demands, and in the face of the different voltage specifications of photovoltaic water pump controller, its voltage reduction module of traditional water pump controller does not adapt to the voltage-regulation of wide region.In use, the lack of uniformity of traditional water pump controller because of actual used water demand and the uncertainty of illumination condition, often occur that discharge of pump corresponding to more weak intensity of illumination does not conform to the actual used water demand of active user, water yield can not meet the current water demand of user.By the design of current photovoltaic water pump, now user needs temporary disengagement photovoltaic power generation array, by electrical source exchange on civil power or diesel engine generator, makes the running at full capacity of water pump energy, meets water requirements.And now the energy output of photovoltaic array has just been wasted.
Summary of the invention
The present invention seeks to solve the deficiencies in the prior art, providing can real-time monitoring voltage and be suitable for the power supply circuits of the wide water pump system of voltage range, and its technical scheme is as follows:
Power supply circuits for the water pump system of real-time detection with voltage, is characterized in that:
Comprise the power module for providing general supply, for detecting the voltage detection module comparing power module output voltage, for providing the switch power module of the power supply of electronic devices and components steady operation in system; Described power module comprises sun-generated electric power and battery feed, charging module and electrical source exchange module is connected with between described sun-generated electric power and battery feed, described electrical source exchange module comprises the first switch be connected with sun-generated electric power, the second switch be connected with battery feed, and described electrical source exchange module selects gear for switching battery feed, sun-generated electric power and power free three kinds of power supplys.
Further, described voltage detection module comprises voltage comparator U1, in-phase input end series resistance R111 and the voltage being connected power supply output after resistance R112 of described voltage comparator U1, the inverting input series resistance R113 of voltage comparator U1 is connected solar energy end or accumulator terminal with after resistance R114, the inverting input of voltage comparator U1 is also connected with the output of voltage comparator U1 through resistance R115, the 3rd electric capacity C113 is connected with between the in-phase input end of voltage comparator U1 and inverting input, between the working power end of described voltage comparator U1 and earth terminal, differential concatenation has switching diode,
When output voltage is higher than sun-generated electric power or battery feed, voltage comparator U1 exports as high level, sun-generated electric power or battery feed normal, when output voltage is lower than sun-generated electric power or battery feed, voltage comparator U1 exports as low level, sun-generated electric power or battery feed electric energy deficiency.
Further, described switch power module comprises pwm control circuit and switch MOS pipe 2M1, and described pwm control circuit comprises Switching Power Supply control chip 1203, voltage stabilizing chip LM431 and photoelectrical coupler; The take-off peak current adjustment pin of described Switching Power Supply control chip 1203 is through a pull down resistor ground connection, the peak current of Switching Power Supply control chip 1203 arranges the collector electrode of illuminated triode in pin connection photoelectrical coupler, the grounded emitter of illuminated triode; The grid of the pulsed drive pin connecting valve metal-oxide-semiconductor 2M1 of Switching Power Supply control chip 1203, the high input voltage pin of Switching Power Supply control chip 1203 connects power module; The current detecting input pin of Switching Power Supply control chip 1203 is connected to the source electrode of switch MOS pipe 2M1; The source output of switch MOS pipe 2M1, the anode of the light-emitting diode of described photoelectrical coupler connects operating voltage, and the negative electrode of light-emitting diode connects the negative electrode of voltage stabilizing chip LM431, the plus earth of voltage stabilizing chip LM431;
Voltage stabilizing chip LM431 exports reverse breakdown voltage, and the Phototube Coupling through photoelectrical coupler feeds back to Switching Power Supply control chip 1203, the conducting duty ratio of Switching Power Supply control chip 1203 regulating and controlling switch MOS pipe 2M1.
Further, described switching power circuit also comprises transforming circuit, described transforming circuit includes DC-DC converter, the power input of described DC-DC converter connects power module, to connect successively between power module and the power input of DC-DC converter the 3rd diode D24 and the first inductance L 20, the power input of DC-DC converter is also connected with two filter capacitors in parallel and ground connection; The drain electrode of the transformation ratio control end connecting valve metal-oxide-semiconductor 2M1 of described DC-DC converter, the power output end of described DC-DC converter exports after the 4th diode D22 and the second inductance L 21, is connected with the filter capacitor of ground connection between the 4th diode D4 and the second inductance L 2;
The transformation ratio that described DC-DC converter exports according to the drain electrode of switch MOS pipe 2M1, converts power module to stable operating voltage.
Further, described charging module comprises the first amplifying triode Q1 and the second amplifying triode Q2, the base stage of described first amplifying triode Q1 connects drive singal, the grounded emitter of the first amplifying triode Q1, the collector electrode of the first amplifying triode Q1 is communicated with the base stage of the second amplifying triode Q2, the emitter of the second amplifying triode Q2 connects working power, the collector electrode of the second amplifying triode Q2 is connected to the non-transformer end of the first switch, and the described solar-electricity source of the first switch is communicated with the non-transformer end of second switch;
After the base stage of the first amplifying triode Q1 receives drive singal, first amplifying triode Q1 and the second amplifying triode Q2 conducting, drive the first power MOS pipe M8 and the second power MOS pipe M9 conducting, and sun-generated electric power is communicated with battery feed, solar energy end charges a battery.
Compared with prior art, beneficial effect of the present invention:
1, the power supply circuits of water pump system of the present invention, low voltage range can be adapted to, high voltage range can be adapted to again, it adopts the mode of Switching Power Supply, by the duty ratio of the conducting of by-pass cock metal-oxide-semiconductor, determines transformation ratio, and the voltage of stable output, reach stabilized driving motor, and keep the working stability of central processing unit and electronic devices and components, further increase the stability of system.
2, the invention provides a kind of circuit that can detect output voltage and supply voltage in real time, in time storage battery quantity not sufficient being detected, be communicated with solar energy voluntarily to charge a battery, number of times and time that user charges a battery can be saved like this, the fan-out capability of solar energy have also been obtained and fully plays and utilize simultaneously, improves the utilance of system solar energy.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is charging circuit schematic diagram of the present invention;
Fig. 3 is the circuit theory diagrams of voltage detection module in the present invention;
Fig. 4 is the circuit theory diagrams of switching power circuit.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 and Figure 2, a kind of power supply circuits of water pump system of real-time detection with voltage, comprise the power module 100 for providing general supply, for detecting the voltage detection module 200 comparing power module 100 output voltage, for providing the switch power module 300 of the power supply of electronic devices and components steady operation in system; Described power module 100 comprises sun-generated electric power 110 and battery feed 120, charging module 130 and electrical source exchange module 140 is connected with between described sun-generated electric power 110 and battery feed 120, described electrical source exchange module 140 comprises the first switch 141 be connected with sun-generated electric power, the second switch 142 be connected with battery feed 120, and described electrical source exchange module 140 selects gear for switching battery feed 120, sun-generated electric power 110 and power free three kinds of power supplys.
As shown in Figure 3, voltage detection module 200 comprises voltage comparator U1, in-phase input end series resistance R111 and the voltage being connected power supply output after resistance R112 of described voltage comparator U1, the inverting input series resistance R113 of voltage comparator U1 is connected solar energy end or accumulator terminal with after resistance R114, the inverting input of voltage comparator U1 is also connected with the output of voltage comparator U1 through resistance R115, the 3rd electric capacity C113 is connected with between the in-phase input end of voltage comparator U1 and inverting input, between the working power end of described voltage comparator U1 and earth terminal, differential concatenation has switching diode.
When output voltage is higher than sun-generated electric power or battery feed, voltage comparator U1 exports as high level, sun-generated electric power or battery feed normal, when output voltage is lower than sun-generated electric power or battery feed, voltage comparator U1 exports as low level, sun-generated electric power or battery feed electric energy deficiency.
As shown in Figure 4, switch power module 300 comprises pwm control circuit 310 and switch MOS pipe 2M1, and described pwm control circuit 310 comprises Switching Power Supply control chip 1203, voltage stabilizing chip LM431 and photoelectrical coupler; The take-off peak current adjustment pin of described Switching Power Supply control chip 1203 is through a pull down resistor ground connection, the peak current of Switching Power Supply control chip 1203 arranges the collector electrode of illuminated triode in pin connection photoelectrical coupler, the grounded emitter of illuminated triode; The grid of the pulsed drive pin connecting valve metal-oxide-semiconductor 2M1 of Switching Power Supply control chip 1203, the high input voltage pin of Switching Power Supply control chip 1203 connects power module; The current detecting input pin of Switching Power Supply control chip 1203 is connected to the source electrode of switch MOS pipe 2M1; The source output of switch MOS pipe 2M1, the anode of the light-emitting diode of described photoelectrical coupler connects operating voltage, and the negative electrode of light-emitting diode connects the negative electrode of voltage stabilizing chip LM431, the plus earth of voltage stabilizing chip LM431.
Voltage stabilizing chip LM431 exports reverse breakdown voltage, and the Phototube Coupling through photoelectrical coupler feeds back to Switching Power Supply control chip 1203, the conducting duty ratio of Switching Power Supply control chip 1203 regulating and controlling switch MOS pipe 2M1.
Switch power module 300 also comprises transforming circuit 320, described transforming circuit 320 includes DC-DC converter, the power input of described DC-DC converter connects power module, to connect successively between power module and the power input of DC-DC converter the 3rd diode D24 and the first inductance L 20, the power input of DC-DC converter is also connected with two filter capacitors in parallel and ground connection; The drain electrode of the transformation ratio control end connecting valve metal-oxide-semiconductor 2M1 of described DC-DC converter, the power output end of described DC-DC converter exports after the 4th diode D22 and the second inductance L 21, is connected with the filter capacitor of ground connection between the 4th diode D4 and the second inductance L 2.
The transformation ratio that described DC-DC converter exports according to the drain electrode of switch MOS pipe 2M1, converts power module to stable operating voltage.
Charging module 130 comprises the first amplifying triode Q1 and the second amplifying triode Q2, the base stage of described first amplifying triode Q1 connects drive singal, the grounded emitter of the first amplifying triode Q1, the collector electrode of the first amplifying triode Q1 is communicated with the base stage of the second amplifying triode Q2, the emitter of the second amplifying triode Q2 connects working power, the collector electrode of the second amplifying triode Q2 is connected to the non-transformer end of the first switch, and the described solar-electricity source of the first switch is communicated with the non-transformer end of second switch.
After the base stage of the first amplifying triode Q1 receives drive singal, first amplifying triode Q1 and the second amplifying triode Q2 conducting, drive the first power MOS pipe M8 and the second power MOS pipe M9 conducting, and sun-generated electric power is communicated with battery feed, solar energy end charges a battery.
Sun-generated electric power 110 comprises the first power MOS pipe M8 and the second power MOS pipe M9, the source electrode of described first power MOS pipe M8 and the source electrode of the second power MOS pipe M9 are connected to the storage battery source of the first switch jointly, the grid of described first power MOS pipe M8 and the grid of the second power MOS pipe M9 are connected to the non-transformer end of the first switch jointly, the circuit of the first diode D5 and the first electric capacity C3 parallel connection is connected with between the grid of described first power MOS pipe M8 and the source electrode of the first power MOS pipe M8, the grounded drain of described first power MOS pipe M8, the drain electrode of the second power MOS pipe M9 is connected to the negative pole of solar energy end, the solar-electricity source of the first switch is connected with the positive pole of solar energy end.
After the conducting of the first power MOS pipe M8 and the second power MOS pipe M9, solar energy end and water pump controller connect, and solar energy end converts solar energy to electric energy direct voltage output.
Battery feed 120 comprises the 3rd power MOS pipe M7 and the 4th power MOS pipe M10, the source electrode of described 3rd power MOS pipe M7 is connected with the source electrode of the 4th power MOS pipe M10, the grid of described 3rd power MOS pipe M7 and the grid of the 4th power MOS pipe M10 are connected to the storage battery source of second switch jointly, the drain electrode of described 3rd power MOS pipe M7 connects the negative pole of storage battery, the grounded drain of the 4th power MOS pipe M10, and the drain electrode of the 4th power MOS pipe M10 is also through the second electric capacity C2, be connected to after the parallel circuits of the second diode D2 second switch solar-electricity source, the non-transformer end of second switch connects the positive pole of storage battery.
After the conducting of the 3rd power MOS pipe M7 and the 4th power MOS pipe M10, storage battery and water pump controller connect, storage battery direct voltage output.
Power supply circuits of the present invention, low voltage range can be adapted to, high voltage range can be adapted to again, it adopts the mode of Switching Power Supply, by the duty ratio of the conducting of by-pass cock metal-oxide-semiconductor, determines transformation ratio, and the voltage of stable output, reach stabilized driving motor, and keep the working stability of central processing unit and electronic devices and components, further increase the stability of system.Power supply circuits of the present invention can also detect the circuit of output voltage and supply voltage in real time, in time storage battery quantity not sufficient being detected, be communicated with solar energy voluntarily to charge a battery, number of times and time that user charges a battery can be saved like this, the fan-out capability of solar energy have also been obtained and fully plays and utilize simultaneously, improves the utilance of system solar energy.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. power supply circuits for the water pump system of real-time detection with voltage, is characterized in that:
Comprise the power module for providing general supply, for detecting the voltage detection module comparing power module output voltage, for providing the switch power module of the power supply of electronic devices and components steady operation in system; Described power module comprises sun-generated electric power and battery feed, charging module and electrical source exchange module is connected with between described sun-generated electric power and battery feed, described electrical source exchange module comprises the first switch with solar powered model calling, with the second switch of storage battery power supply model calling, and described power change-over switch selects gear for switching battery feed, sun-generated electric power and power free three kinds of power supplys.
2. the power supply circuits of the water pump system of real-time detection with voltage according to claim 1, it is characterized in that: described voltage detection module comprises voltage comparator U1, in-phase input end series resistance R111 and the voltage being connected power supply output after resistance R112 of described voltage comparator U1, the inverting input series resistance R113 of voltage comparator U1 is connected solar energy end or accumulator terminal with after resistance R114, the inverting input of voltage comparator U1 is also connected with the output of voltage comparator U1 through resistance R115, the 3rd electric capacity C113 is connected with between the in-phase input end of voltage comparator U1 and inverting input, between the working power end of described voltage comparator U1 and earth terminal, differential concatenation has switching diode,
When output voltage is higher than sun-generated electric power or battery feed, voltage comparator U1 exports as high level, sun-generated electric power or battery feed normal, when output voltage is lower than sun-generated electric power or battery feed, voltage comparator U1 exports as low level, sun-generated electric power or battery feed electric energy deficiency.
3. the power supply circuits of the water pump system of real-time detection with voltage according to claim 2, it is characterized in that: described switch power module comprises pwm control circuit and switch MOS pipe 2M1, and described pwm control circuit comprises Switching Power Supply control chip 1203, voltage stabilizing chip LM431 and photoelectrical coupler; The take-off peak current adjustment pin of described Switching Power Supply control chip 1203 is through a pull down resistor ground connection, the peak current of Switching Power Supply control chip 1203 arranges the collector electrode of illuminated triode in pin connection photoelectrical coupler, the grounded emitter of illuminated triode; The grid of the pulsed drive pin connecting valve metal-oxide-semiconductor 2M1 of Switching Power Supply control chip 1203, the high input voltage pin of Switching Power Supply control chip 1203 connects power module; The current detecting input pin of Switching Power Supply control chip 1203 is connected to the source electrode of switch MOS pipe 2M1; The source output of switch MOS pipe 2M1, the anode of the light-emitting diode of described photoelectrical coupler connects operating voltage, and the negative electrode of light-emitting diode connects the negative electrode of voltage stabilizing chip LM431, the plus earth of voltage stabilizing chip LM431;
Voltage stabilizing chip LM431 exports reverse breakdown voltage, and the Phototube Coupling through photoelectrical coupler feeds back to Switching Power Supply control chip 1203, the conducting duty ratio of Switching Power Supply control chip 1203 regulating and controlling switch MOS pipe 2M1.
4. the power supply circuits of the water pump system of real-time detection with voltage according to claim 3, it is characterized in that described switching power circuit also comprises transforming circuit, described transforming circuit includes DC-DC converter, the power input of described DC-DC converter connects power module, to connect successively between power module and the power input of DC-DC converter the 3rd diode D24 and the first inductance L 20, the power input of DC-DC converter is also connected with two filter capacitors in parallel and ground connection; The drain electrode of the transformation ratio control end connecting valve metal-oxide-semiconductor 2M1 of described DC-DC converter, the power output end of described DC-DC converter exports after the 4th diode D22 and the second inductance L 21, is connected with the filter capacitor of ground connection between the 4th diode D4 and the second inductance L 2;
The transformation ratio that described DC-DC converter exports according to the drain electrode of switch MOS pipe 2M1, converts power module to stable operating voltage.
5. the power supply circuits of the water pump system of real-time detection with voltage according to claim 4, it is characterized in that described charging module comprises the first amplifying triode Q1 and the second amplifying triode Q2, the base stage of described first amplifying triode Q1 connects drive singal, the grounded emitter of the first amplifying triode Q1, the collector electrode of the first amplifying triode Q1 is communicated with the base stage of the second amplifying triode Q2, the emitter of the second amplifying triode Q2 connects working power, the collector electrode of the second amplifying triode Q2 is connected to the non-transformer end of the first switch, the solar-electricity source of described first switch is communicated with the non-transformer end of second switch,
After the base stage of the first amplifying triode Q1 receives drive singal, first amplifying triode Q1 and the second amplifying triode Q2 conducting, drive the first power MOS pipe M8 and the second power MOS pipe M9 conducting, and sun-generated electric power is communicated with battery feed, solar energy end charges a battery.
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| CN201610101046.1A CN105553093A (en) | 2016-02-24 | 2016-02-24 | Power supply circuit with real-time voltage detection for water pump system |
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| CN201610101046.1A CN105553093A (en) | 2016-02-24 | 2016-02-24 | Power supply circuit with real-time voltage detection for water pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106533163A (en) * | 2016-01-22 | 2017-03-22 | 东莞市清能光伏科技有限公司 | Photovoltaic power converter |
| CN107463128A (en) * | 2017-07-31 | 2017-12-12 | 上海拓攻机器人有限公司 | A kind of sprinkling control module and its plant protection unmanned plane suitable for plant protection unmanned plane |
| CN110011651A (en) * | 2019-04-17 | 2019-07-12 | 珠海优特电力科技股份有限公司 | A kind of ground line extension tears wireless collection electronic switch shielding system and its working method open |
| CN111120384A (en) * | 2019-12-30 | 2020-05-08 | 佛山市顺德区蚬华多媒体制品有限公司 | Self-adaptive control circuit and fan |
| CN111998759A (en) * | 2020-09-10 | 2020-11-27 | 广州极飞科技有限公司 | Measuring device and irrigation system |
| CN113324089A (en) * | 2021-07-01 | 2021-08-31 | 雒红林 | Domestic water saver |
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Effective date of registration: 20170517 Address after: Wenling City, Taizhou City, Zhejiang province 317511 Songmen Town Industrial Zone southeast Taifu pump Applicant after: Zhejiang Taifu pump Limited by Share Ltd Address before: 317511 Wenling City, Zhejiang Province, Southeast of the town of the town of Industrial Co., Ltd. Applicant before: TAIZHOU YIJU MECHANICAL & ELECTRIC PRODUCTS CO., LTD. |
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Application publication date: 20160504 |