CN203102061U - Voltage stabilizer with auto-transformer - Google Patents
Voltage stabilizer with auto-transformer Download PDFInfo
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- CN203102061U CN203102061U CN 201320003052 CN201320003052U CN203102061U CN 203102061 U CN203102061 U CN 203102061U CN 201320003052 CN201320003052 CN 201320003052 CN 201320003052 U CN201320003052 U CN 201320003052U CN 203102061 U CN203102061 U CN 203102061U
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Abstract
The utility model discloses a voltage stabilizer with an auto-transformer. The voltage stabilizer comprises a voltage signal detection circuit, a control module, a driving module, a switch module, and the auto-transformer which are sequentially connected, wherein the voltage signal detection circuit detects input voltages, the control module sends out different control signals according to different input voltages, the driving module amplifies the control signals to the driving module, the driving module conducts corresponding coils in the auto-transformer according to the different control signals, and output of the auto-transformer keeps constant. The voltage stabilizer is wide in input voltage, high in output voltage precision and free of damage to a power supply, and has the advantages of being strong in practicality, good in performance, high in conversion rate, simple to operate, and good in safety factor. The problems that an existing circuit is low in conversion efficiency and poor in load shock prevention capability are resolved, and the problems that the circuit is complex in structure, large in the number of elements, poor in reliability, high in cost, narrow in input voltage, and low in output voltage precision are resolved.
Description
Technical field
The utility model relates to field of power supplies, relates in particular to a kind of stable-pressure device that applies to the band autotransformer of ups power and photovoltaic off-grid inverter power supply.
Background technology
Along with continuous progress in science and technology, also more and more higher to the requirement of ups power and photovoltaic off-grid inverter power supply, power supply is energy-conservation to height, high conversion efficiency, load capacity reach the inexorable trend that the multi-usage development has been social development by force.This harsh application conditions certainly will be to the requirement of power supply than higher, and the size of the anti-load shock ability of power supply just becomes the important indicator of a test power supply quality so.From ups power and photovoltaic off-grid inverter power supply frequency working method, ups power and photovoltaic off-grid inverter power supply are divided into two kinds of high and low frequency power supplys.The AC-AC of the ups power of high frequency and photovoltaic off-grid inverter power supply owing to used make it behind booster circuit PFC, high-frequency isolation transformer, rectification and the filtering circuit the lower and anti-load shock ability of power supply conversion efficiency a little less than, so the load appliance (as: air-conditioning) that the user must select for use the ups power that is several times as much as bearing power and photovoltaic off-grid inverter power supply could start a perception, capacitive when the load appliance (as: air-conditioning) that uses to perception, capacitive carries out work.As everyone knows, the perception, capacitive load appliance (as: air-conditioning) when starting in a flash its starting current than higher, but its working current of back is smaller again in case work together, so just caused the great wasting of resources to cause use cost higher, so the user is free timing generally can avoid the ups power of high frequency and photovoltaic off-grid inverter power supply and with the ups power and the photovoltaic off-grid inverter power supply of low frequency aspect type selecting.At present, the ups power of tradition low frequency and the circuit structure complexity of photovoltaic off-grid inverter power supply, component number is numerous, poor reliability, cost height and civil power voltage stabilized range are narrow, the output voltage control accuracy is not high yet, so just caused its electric power output voltage drift bigger, the client usually runs into light flash or the inoperable phenomenon of power supply when using electric lighting, brought very big inconvenience to the user.
The utility model content
The utility model is the problems referred to above that will solve prior art, proposes a kind of stable-pressure device that can adapt to the band autotransformer of broad stabilized input voltage output voltage.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of stable-pressure device with autotransformer of design, and it comprises: the voltage signal testing circuit, connect input live wire and input zero line, and be used for detecting the input power supply, output voltage signal; Control module connects the voltage signal testing circuit, has a plurality of control output ends, and the height according to voltage signal numerical value sends control signal from the control output end; Driver module has the driving input end and the drive output that equate with control output end quantity, drives the control output end that input end connects one to one, and is sent the control signal of amplification by the corresponding driving output terminal; Switch module has the switch input terminal that equates with drive output quantity and output switching terminal and live wire input end and operating power end, the switch input terminal drive output that connects one to one; According to described control signal the live wire input end is selected one and connect an output switching terminal; Autotransformer has a winding, and winding one end connects input zero line and output zero line, and the winding middle part picks out a plurality of taps, and the winding other end and tap and output switching terminal connect one to one, and one in the described tap connects the output live wire.
Described autotransformer has first to fourth tap that is arranged in order, from the nearer tap of output zero line is first tap, the 4th tap connects described output live wire, control module has 5 control output ends, driver module has 5 and drives input end and drive output, and switch module has 5 switch input terminals and output switching terminal.
Described control module adopts the single-chip microcomputer of ULN2003 model, and described control output end all connects the driving input end by a resistance.
Described switch module comprises first to the 5th relay, and an end of first to the 5th relay coil connects the operating power end by the corresponding respectively driver module drive output that connects of switch input terminal after the other end parallel connection of first to the 5th relay coil; Wherein the stationary contact of first relay connects the live wire input end, and break contact connects the stationary contact of second relay; The break contact of second relay connects described first tap, and moving together contact connects the stationary contact of the 3rd relay; The break contact of the 3rd relay connects described second tap, and moving together contact connects the stationary contact of the 4th relay; The break contact of the 4th relay connects described the 3rd tap, and moving together contact connects the stationary contact of the 5th relay; The break contact of the 5th relay connects described the 4th tap, and moving together contact connects the described winding other end.
Described driver module adopts the chip for driving of PIC16F73 model.
Described driver module comprises first to the 5th triode, and by driving the described control output end of the corresponding connection of input end, grounded emitter, wherein first transistor collector connects an end of described first relay coil to the base stage of first to the 5th triode respectively; Second transistor collector connects an end of described second relay coil; The 3rd transistor collector connects an end of described the 3rd relay coil; The 4th transistor collector connects an end of described the 4th relay coil; The 5th transistor collector connects an end of described the 5th relay coil.
Above-mentioned autotransformer has an ancillary coil, and diode of ancillary coil serial connection to the operating power end power supply of described switch module, and connects a Voltage stabilizing module; Voltage stabilizing module is powered to control module.
Compared with prior art, the utility model input voltage is wide, output voltage control accuracy height, practical, function admirable, power supply conversion efficiency height, simple to operate, safety coefficient good, it is destructive that power supply itself is not had.It has avoided the lower and more weak problem of anti-load shock ability of conversion efficiency of the ups power and the photovoltaic off-grid inverter power supply of high frequency on the one hand, also avoided the circuit structure complexity of the ups power and the photovoltaic off-grid inverter power supply of low frequency on the other hand, component number is numerous, poor reliability, cost height and civil power voltage stabilized range are narrow, and the also not high user of causing of output voltage control accuracy usually runs into light flash or the inoperable problem of power supply when using electric lighting.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is the theory diagram of the utility model preferred embodiment;
Fig. 2 is the circuit diagram of an embodiment of the utility model;
Fig. 3 is the circuit diagram of another embodiment of the utility model.
Embodiment
The utility model has disclosed a kind of stable-pressure device with autotransformer, and referring to Fig. 1, it comprises: voltage signal testing circuit, control module, driver module, switch module, the autotransformer of Lian Jieing successively.Wherein the voltage signal testing circuit connects input live wire and input zero line, is used for detecting the input power supply, output voltage signal; Control module connects the voltage signal testing circuit, has a plurality of control output ends, and the height according to voltage signal numerical value sends control signal from the control output end, and one group of control signal is formed in each control output end, with the voltage signal of the different numerical value of correspondence; Driver module has the driving input end and the drive output that equate with control output end quantity, drives the control output end that input end connects one to one, and is sent the control signal of amplification by the corresponding driving output terminal; Switch module has the switch input terminal that equates with drive output quantity and output switching terminal and live wire input end and operating power end, the switch input terminal drive output that connects one to one; According to described control signal the live wire input end is selected one and connect an output switching terminal; Autotransformer has a winding, and winding one end connects input zero line and output zero line, and the winding middle part picks out a plurality of taps, and the winding other end and tap and output switching terminal connect one to one, and one in the described tap connects the output live wire.Control module is sent different control signals according to different input voltages, driver module amplifies this control signal to driver module, driver module makes the output of autotransformer keep constant according to respective coil in the different control signal conducting autotransformers.
Referring to the embodiment shown in Fig. 2 and Fig. 3, autotransformer has first to fourth tap that is arranged in order, and is first tap from the nearer tap of output zero line, and the 4th tap connects described output live wire OUT-L.In this embodiment, winding one end is the 0Vac end, meets input zero line IN-N and output zero line OUT-N.The winding other end is the 250Vac end, and first tap is that 130Vac end, second tap are that 160Vac end, the 3rd tap are that 190Vac end, the 4th tap are the 220Vac end.According to the difference of input supply voltage, will import live wire IN-L and be connected to different port, make output live wire OUT-L maintain 220 volts of constant voltages.Behaving matches with this autotransformer, and control module has 5 control output ends, and driver module has 5 and drives input end and drive output, and switch module has 5 switch input terminals and output switching terminal.
Referring to the embodiment shown in Fig. 2 and Fig. 3, control module adopts the single-chip microcomputer of ULN2003 model, and described control output end all connects the driving input end by a resistance.This control chip single-chip microcomputer U1 has 28 pin, 2 pin that 3 pin that 4 pin that 5 pin that 14 pin of U1 meet 2 pin, the U1 of R1 meet 2 pin of R2, U1 meet 2 pin, the U1 of R3 meet 2 pin of R4, U1 connect 2 pin of R5,5 pin of U1 connect direct current 5V power supply, 8 pin of U1 and 19 pin ground connection, 1 pin of U1 is a reseting pin, 1 pin of U1 connects a wherein end of capacitor C 2 and resistance R 6, and an end of another termination capacitor C 1 of capacitor C 2 is ground connection simultaneously, and the other end of another termination capacitor of resistance R 6 connects direct current 5V power supply simultaneously.
Referring to the embodiment shown in Fig. 2 and Fig. 3, switch module comprises first to the 5th relay (K1 to K5), one end of first to the 5th relay coil meets operating power end direct current 12V by the corresponding respectively driver module drive output that connects of switch input terminal after the other end parallel connection of first to the 5th relay coil; Wherein the stationary contact of first relay K 1 (1 pin of K1) connects live wire input end IN-L, and break contact (being normally closed contact, 2 pin of K1) connects the stationary contact of second relay K 2; The break contact of second relay K 2 connects described first tap 130Vac end, and moving together contact (being normally opened contact, 3 pin of K2) connects the stationary contact of the 3rd relay K 3; The break contact of the 3rd relay K 3 connects described second tap 160Vac end, and moving together contact connects the stationary contact of the 4th relay K 4; The break contact of the 4th relay K 4 connects described the 3rd tap 190Vac end, and moving together contact connects the stationary contact of the 5th relay K 5; The break contact of the 5th relay K 5 connects described the 4th tap 220Vac end, and moving together contact connects described winding other end 250Vac end.
Referring to the embodiment shown in Fig. 2, driver module adopts the chip for driving of PIC16F73 model.This chip for driving U2 has 16 pin, and 7 pin of U2 connect an end of K1 coil (4 pin of K1), and 6 pin of U2 connect an end of K2 coil, 5 pin of U2 connect an end of K3 coil, 4 pin of U2 connect an end of K4 coil, connect an end of K5 coil after 1,2, the 3 pin parallel connections of U2, the 8 pin ground connection of U2,9 pin of U2 connect the 12V direct current, 10 pin of U2 connect 1 pin of R1, and 11 pin of U2 connect 1 pin of R2, and 12 pin of U2 connect 1 pin of R3,13 pin of U2 connect 1 pin of R4, connect 1 pin of R5 after 14,15, the 16 pin parallel connections of U2.
Referring to another embodiment shown in Fig. 3, the difference of embodiment is that driver module is different among this embodiment and the figure.In this example, driver module comprises first to the 5th triode (Q1 to Q5), by driving the described control output end of the corresponding connection of input end, grounded emitter, wherein the first triode Q1 collector connects an end (4 pin of K1) of described first relay K, 1 coil to the base stage of first to the 5th triode respectively; The second triode Q2 collector connects an end of described second relay K, 2 coils; The 3rd triode Q3 collector connects an end of described the 3rd relay K 3 coils; The 4th triode Q4 collector connects an end of described the 4th relay K 4 coils; The 5th triode Q5 collector connects an end of described the 5th relay K 5 coils.
In the above-described embodiments, autotransformer has an ancillary coil T1, diode D1 of ancillary coil serial connection, operating power end to described switch module provides 12 volts of direct currents, and connect a Voltage stabilizing module (this example for three terminal regulator U2), the 5V dc output end link control module of U2 is powered to U1.
Be example with the circuit shown in Fig. 3 below, describe this device principle of work:
When civil power is come in, at first the mains input voltage is detected, and its result is passed to 7 pin of U1 by the voltage signal testing circuit, U1 goes out different control signal by 2,3,4,5 with 14 human hair combing wastes according to different input voltages.Such as civil power is 130V, 14, the 5 pin output low levels of U1, triode Q1, Q2 end, relay K 1, K2 dead electricity are failure to actuate, input live wire IN-L is transmitted to autotransformer 130Vac end by the contact of K1, K2, autotransformer is operated in boost mode, and output current has been realized the purpose of voltage stabilizing by the output of 220Vac end.Such as civil power is 250V, the 14 pin output low levels of U1,5,4,3, the 2 pin output high level of U1, triode Q1 ends, Q2, Q3, Q4, Q5 conducting, relay K 1 dead electricity is failure to actuate, K2 to K5 gets electric adhesive, and input live wire IN-L is transmitted to autotransformer 250Vac end by the contact of K1 to K5, and autotransformer is operated in decompression mode, output current has been realized the purpose of voltage stabilizing by the output of 220Vac end.By this, no matter civil power is 130Vac, 160Vac, 190Vac, 220Vac or 250Vac, U1 adjusts the control signal of its output, drives the relay group and moves according to certain rules, and the autotransformer output voltage is 220Vac.
When driver module adopted the chip for driving of PIC16F73 model, this device principle of work was same as described above, so repeat no more.
Above embodiment is only for illustrating non-providing constraints.Anyly do not break away from the application's spirit and category, and, all should be contained among the application's the claim scope its equivalent modifications of carrying out or change.
Claims (7)
1. stable-pressure device with autotransformer is characterized in that comprising:
The voltage signal testing circuit connects input live wire and input zero line, is used for detecting the input power supply, output voltage signal;
Control module connects the voltage signal testing circuit, has a plurality of control output ends, and the height according to voltage signal numerical value sends control signal from the control output end;
Driver module has the driving input end and the drive output that equate with control output end quantity, drives the control output end that input end connects one to one, and is sent the control signal of amplification by the corresponding driving output terminal;
Switch module has the switch input terminal that equates with drive output quantity and output switching terminal and live wire input end and operating power end, the switch input terminal drive output that connects one to one; According to described control signal the live wire input end is selected one and connect an output switching terminal;
Autotransformer has a winding, and winding one end connects input zero line and output zero line, and the winding middle part picks out a plurality of taps, and the winding other end and tap and output switching terminal connect one to one, and one in the described tap connects the output live wire.
2. stable-pressure device as claimed in claim 1, it is characterized in that: described autotransformer has first to fourth tap that is arranged in order, from the nearer tap of output zero line is first tap, the 4th tap connects described output live wire, control module has 5 control output ends, driver module has 5 and drives input end and drive output, and switch module has 5 switch input terminals and output switching terminal.
3. stable-pressure device as claimed in claim 2 is characterized in that: described control module adopts the single-chip microcomputer of ULN2003 model, and described control output end all connects the driving input end by a resistance.
4. stable-pressure device as claimed in claim 3, it is characterized in that: described switch module comprises first to the 5th relay, one end of first to the 5th relay coil connects the operating power end by the corresponding respectively driver module drive output that connects of switch input terminal after the other end parallel connection of first to the 5th relay coil; Wherein
The stationary contact of first relay connects the live wire input end, and break contact connects the stationary contact of second relay;
The break contact of second relay connects described first tap, and moving together contact connects the stationary contact of the 3rd relay;
The break contact of the 3rd relay connects described second tap, and moving together contact connects the stationary contact of the 4th relay;
The break contact of the 4th relay connects described the 3rd tap, and moving together contact connects the stationary contact of the 5th relay;
The break contact of the 5th relay connects described the 4th tap, and moving together contact connects the described winding other end.
5. stable-pressure device as claimed in claim 4 is characterized in that: described driver module adopts the chip for driving of PIC16F73 model.
6. stable-pressure device as claimed in claim 4 is characterized in that: described driver module comprises first to the 5th triode, and the base stage of first to the 5th triode is respectively by driving the described control output end of the corresponding connection of input end, grounded emitter, wherein
First transistor collector connects an end of described first relay coil;
Second transistor collector connects an end of described second relay coil;
The 3rd transistor collector connects an end of described the 3rd relay coil;
The 4th transistor collector connects an end of described the 4th relay coil;
The 5th transistor collector connects an end of described the 5th relay coil.
7. as each described stable-pressure device of claim 1 to 6, it is characterized in that: described autotransformer has an ancillary coil, and diode of ancillary coil serial connection to the operating power end power supply of described switch module, and connects a Voltage stabilizing module; Voltage stabilizing module is powered to control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003052 CN203102061U (en) | 2013-01-05 | 2013-01-05 | Voltage stabilizer with auto-transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003052 CN203102061U (en) | 2013-01-05 | 2013-01-05 | Voltage stabilizer with auto-transformer |
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| CN203102061U true CN203102061U (en) | 2013-07-31 |
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| CN 201320003052 Expired - Fee Related CN203102061U (en) | 2013-01-05 | 2013-01-05 | Voltage stabilizer with auto-transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378820A (en) * | 2018-11-07 | 2019-02-22 | 宁波奥克斯电气股份有限公司 | A kind of control method that AC load power grid is adaptive and device |
-
2013
- 2013-01-05 CN CN 201320003052 patent/CN203102061U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378820A (en) * | 2018-11-07 | 2019-02-22 | 宁波奥克斯电气股份有限公司 | A kind of control method that AC load power grid is adaptive and device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN JINGFUYUAN TECH. CO., LTD. Free format text: FORMER NAME: SHENZHEN JINGFUYUAN TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Shenzhen Nanshan District City, Guangdong province 518000 white pine Luxili Nangang Second Industrial Park 12 Building 1, 2, 5 floor Patentee after: SHENZHEN JINGFUYUAN TECHNOLOGY CO., LTD. Address before: Shenzhen Nanshan District City, Guangdong province 518000 white pine Luxili Nangang Second Industrial Park twelfth 5 floor Patentee before: Shenzhen Jingfuyuan Tech Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |