CN204615656U - A kind of Adjustable switch power supply - Google Patents
A kind of Adjustable switch power supply Download PDFInfo
- Publication number
- CN204615656U CN204615656U CN201520356542.2U CN201520356542U CN204615656U CN 204615656 U CN204615656 U CN 204615656U CN 201520356542 U CN201520356542 U CN 201520356542U CN 204615656 U CN204615656 U CN 204615656U
- Authority
- CN
- China
- Prior art keywords
- pin
- chip
- resistance
- circuit
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Dc-Dc Converters (AREA)
- Rectifiers (AREA)
Abstract
The utility model discloses a kind of Adjustable switch power supply, comprise micro controller module and MOSFET drive circuit, and the input rectifying filter connected successively, MOSFET chopper circuit, power conversion circuit, output rectification filter device and DC output circuit, the input of micro controller module is connected to coding volume circuit, positive voltage sample circuit, positive current sample circuit, negative voltage sample circuit and negative current sample circuit, the output of micro controller module is connected to Nixie tube drive circuit and pwm control circuit, the output of MOSFET drive circuit connects with the input of MOSFET chopper circuit, positive voltage sample circuit, positive current sample circuit, negative voltage sample circuit and negative current sample circuit all gather the data that rectifier filter exports, the utility model is novel in design, structure is simple, adopt multiple current potential encoder regulation output voltage range, control circui precision is high, adjustable extent is large, practical.
Description
Technical field
The utility model belongs to switch power technology field, is specifically related to a kind of Adjustable switch power supply.
Background technology
Switching Power Supply is exactly switching mode D.C. regulated power supply, along with the appearance of power tube MOSFET, result in middle low power power supply to develop to high frequency, and be that big-and-middle-sized power power-supply brings opportunity to high frequency development, various new technology, new technology and new unit are constantly updated, Switching Power Supply just towards energy-efficient, safety and environmental protection, short, little, light, thin and adjustable future development.Traditional Adjustable switch power supply be all manually adjusting resistance value to change stabilizer output voltage, so not only degree of regulation is low, cost is high, and use a large amount of modulate circuit connection layouts, complicated operation is convenient not, and anti-interference is weak, therefore, nowadays a kind of structure is lacked simple, cost is low, reasonable in design, the Adjustable switch power supply that output dc voltage is adjustable and easy and simple to handle, generating positive and negative voltage or the reversal data of the output of output rectification filter device are gathered respectively by sample circuit, and use four group of four figures pipes to show the data gathered respectively, when the positive and negative scope of needs regulation output voltage, circuit impedance conversion is changed by current potential encoder, microcontroller is by outside PWM controller control MOSFET fet switch, the adjustment realizing output voltage of fast and stable, strong interference immunity, precision is high, the output voltage adjustable range solving Conventional tunable formula Switching Power Supply is little, error is large, cost is high, connect complex operations loaded down with trivial details, anti-interference is weak, the problems such as feedback data collection is not comprehensive.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of Adjustable switch power supply, and it is rationally novel in design, structure is simple, cost is low, and regulation output voltage range is large, and error is little, circuit impedance conversion is changed by using multiple current potential encoder, avoid using a large amount of external modulate circuit regulation output voltage, strong interference immunity, sampled data is comprehensive, practical, be convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of Adjustable switch power supply, it is characterized in that: comprise micro controller module and MOSFET drive circuit, and the input rectifying filter connected successively, MOSFET chopper circuit, power conversion circuit, output rectification filter device and DC output circuit, the input of described micro controller module is connected to coding volume circuit, positive voltage sample circuit, positive current sample circuit, negative voltage sample circuit and negative current sample circuit, the pwm control circuit that the output of described micro controller module is connected to Nixie tube drive circuit and connects with described MOSFET drive circuit input, the output of described MOSFET drive circuit connects with the input of described MOSFET chopper circuit, the output of described Nixie tube drive circuit is connected to the first charactron, second charactron, 3rd charactron and the 4th charactron, the input of described positive voltage sample circuit, the input of positive current sample circuit, the input of negative voltage sample circuit and the input of negative current sample circuit all connect with the output of described output rectification filter device,
Described micro controller module is ARM microcontroller LPC2478 chip; The coding volume U10 of the coding volume U8 that described coding volume circuit comprises coding volume U7 that model is EC11B15202AA, model is EC11B15202AA, model to be the coding volume U9 of EC11B15202AA and model be EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 14th pin of ARM microcontroller LPC2478 chip, the 16th pin and the 18th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 192nd pin of ARM microcontroller LPC2478 chip, the 177th pin and the 185th pin respectively; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 182nd pin of ARM microcontroller LPC2478 chip, the 184th pin and the 147th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 73rd pin of ARM microcontroller LPC2478 chip, the 67th pin and the 59th pin respectively.
Above-mentioned a kind of Adjustable switch power supply, it is characterized in that: described MOSFET chopper circuit comprises field effect transistor M D0 and field effect transistor M D1, the grid of described field effect transistor M D0 connects with MOSFET drive circuit through the electric capacity CH1 of parallel connection and resistance RH1, the source ground of field effect transistor M D0, the drain electrode of field effect transistor M D0 connects the negative electrode of voltage stabilizing didoe DH3 through diode DH1, the anode of voltage stabilizing didoe DH3 connects with the output of input rectifying filter; The grid of described field effect transistor M D1 connects with MOSFET drive circuit through the electric capacity CH3 of parallel connection and resistance RH2, the source ground of field effect transistor M D1, the drain electrode of field effect transistor M D1 connects the negative electrode of voltage stabilizing didoe DH4 through diode DH2, the anode of voltage stabilizing didoe DH4 connects with the output of input rectifying filter.
Above-mentioned a kind of Adjustable switch power supply, it is characterized in that: described power conversion circuit comprises transformer T1, Schottky diode MUR3060PT and Schottky diode MUR3060FT, the connection of the anode of original grade coil one end of described transformer T1 and the drain electrode of field effect transistor M D0 and diode DH1 connects, the connection of the anode of the original grade coil other end of transformer T1 and the drain electrode of field effect transistor M D1 and diode DH2 connects, the link of the anode of the centre cap of the original grade coil of transformer T1 and the anode of voltage stabilizing didoe DH3 and voltage stabilizing didoe DH4 connects, the two ends of the secondary coil of transformer T1 connect with one end of inductance L V1 through Schottky diode MUR3060PT, the output of Schottky diode MUR3060PT connects with the input of Schottky diode MUR3060FT through electric capacity CV1 and electric capacity CV6, and two outputs of Schottky diode MUR3060FT connect with the two ends of the secondary coil of transformer T1 respectively.
Above-mentioned a kind of Adjustable switch power supply, is characterized in that: described positive voltage sample circuit comprises resistance RB11 and resistance RB12, and the link of described resistance RB11 and resistance RB12 connects with the 106th pin of ARM microcontroller LPC2478 chip;
Described positive current sample circuit comprises chip U71, and the output of described chip U71 connects with the 102nd pin of ARM microcontroller LPC2478 chip;
Described negative voltage sample circuit comprises chip U72, and the output of described chip U72 connects with the 108th pin of ARM microcontroller LPC2478 chip;
Described negative current sample circuit comprises chip U73, and the output of described chip U73 connects with the 110th pin of ARM microcontroller LPC2478 chip.
Above-mentioned a kind of Adjustable switch power supply, it is characterized in that: described pwm control circuit comprises the chip U6 that chip U5 that model is TL494 and model are TL494, 1st pin of described chip U5 is connected with the collector electrode of triode QG5 by the resistance RG16 of series connection and resistance RG15, the base stage of triode QG5 is connected with the 144th pin of ARM microcontroller LPC2478 chip by resistance RG13, 2nd pin of chip U5 is connected with the collector electrode of triode QG6 by the resistance RG20 of series connection and resistance RG19, the base stage of triode QG6 is connected with the 150th pin of ARM microcontroller LPC2478 chip by resistance RG17, 9th pin of chip U5 connects the base stage of triode Q51 through resistance R52, the collector electrode of triode Q51 connects with-40V power output end through resistance R53 and resistance R54, 1st pin of described chip U6 is connected with the collector electrode of triode QG2 by the resistance RG06 of series connection and resistance RG05, the base stage of triode QG2 is connected with the collector electrode of triode QG1 by resistance RG03, the base stage of triode QG1 is connected with the 140th pin of ARM microcontroller LPC2478 chip by resistance RG01, 2nd pin of chip U6 is connected with the collector electrode of triode QG4 by the resistance RG12 of series connection and resistance RG11, the base stage of triode QG4 is connected with the collector electrode of triode QG3 by resistance RG09, the base stage of triode QG3 is connected with the 142nd pin of ARM microcontroller LPC2478 chip by resistance RG07, 11st pin of chip U6 connects the base stage of triode Q61 through resistance R62, the collector electrode of triode Q61 connects with-40V power output end through resistance R63 and resistance R64.
Above-mentioned a kind of Adjustable switch power supply, it is characterized in that: the link of described resistance R53 and resistance R54 connects with an input of MOSFET drive circuit, and the link of described resistance R63 and resistance R64 connects with another input of MOSFET drive circuit.
Above-mentioned a kind of Adjustable switch power supply, it is characterized in that: described Nixie tube drive circuit comprises the second chip that the first chip that model is 74HC595 and model are 74HC595, and the input of described first chip and the input of the second chip all connect with described ARM microcontroller LPC2478 chip.
Above-mentioned a kind of Adjustable switch power supply, is characterized in that: described first charactron, the second charactron, the 3rd charactron and the 4th charactron are group of four figures pipe; Described first charactron and the second charactron all connect with the first chip, and described 3rd charactron and the 4th charactron all connect with the second chip.
The utility model compared with prior art has the following advantages:
1, the utility model is that direct current sends into MOSFET chopper circuit by arranging input rectifying filter by mains electric rectification filtering transformation, MOSFET chopper circuit drives through MOSFET drive circuit, make the folding of MOSFET field effect transistor, circuit is simple, reliable and stable.
2, the utility model is by arranging coding volume U7, coding volume U8, coding volume U9 and coding volume U10 regulating circuit impedance transformation, and make output dc voltage practical requirement, control precision is high, strong interference immunity.
3, the utility model shows the positive voltage of sampling, positive current, negative voltage and negative current data respectively by arranging the first charactron, the second charactron, the 3rd charactron and the 4th charactron, and sampled data is comprehensive, and display effect is good, practical.
4, the utility model is by arranging outside pwm control circuit, and use two TL494 chip drives MOSFET drive circuits, control precision is high.
5, the utility model structure is simple, and cost is low, and regulation output voltage range is large, and error is little, is convenient to promote the use of.
In sum, the utility model is rationally novel in design, and structure is simple, and cost is low, regulation output voltage range is large, error is little, by using multiple current potential encoder to change circuit impedance conversion, avoids using a large amount of external modulate circuit regulation output voltage, strong interference immunity, sampled data is comprehensive, practical, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit connecting relation schematic diagram of the utility model MOSFET chopper circuit, power conversion circuit and output rectification filter device.
Fig. 3 is the circuit theory diagrams of the utility model micro controller module.
Fig. 4 is the circuit theory diagrams of the utility model pwm control circuit.
Fig. 5 is the circuit theory diagrams of the utility model positive voltage sample circuit.
Fig. 6 is the circuit theory diagrams of the utility model positive current sample circuit.
Fig. 7 is the circuit theory diagrams of the utility model negative voltage sample circuit.
Fig. 8 is the circuit theory diagrams of the utility model negative current sample circuit.
Description of reference numerals:
1-input rectifying filter; 2-MOSFET chopper circuit; 3-power conversion circuit;
4-output rectification filter device; 5-DC output circuit; 6-MOSFET drive circuit;
7-1-positive voltage sample circuit; 7-2-positive current sample circuit; 7-3-negative voltage sample circuit;
7-4-negative current sample circuit; 8-micro controller module; 9-coding volume circuit;
10-pwm control circuit; 11-Nixie tube drive circuit; 12-1-the first charactron;
12-2-the second charactron; 12-3-the 3rd charactron; 12-4-the 4th charactron.
Embodiment
As shown in figures 1 and 3, the utility model comprises micro controller module 8 and MOSFET drive circuit 6, and the input rectifying filter 1 connected successively, MOSFET chopper circuit 2, power conversion circuit 3, output rectification filter device 4 and DC output circuit 5, the input of described micro controller module 8 is connected to coding volume circuit 9, positive voltage sample circuit 7-1, positive current sample circuit 7-2, negative voltage sample circuit 7-3 and negative current sample circuit 7-4, the pwm control circuit 10 that the output of described micro controller module 8 is connected to Nixie tube drive circuit 11 and connects with described MOSFET drive circuit 6 input, the output of described MOSFET drive circuit 6 connects with the input of described MOSFET chopper circuit 2, the output of described Nixie tube drive circuit 11 is connected to the first charactron 12-1, second charactron 12-2, 3rd charactron 12-3 and the 4th charactron 12-4, the input of described positive voltage sample circuit 7-1, the input of positive current sample circuit 7-2, the input of negative voltage sample circuit 7-3 and the input of negative current sample circuit 7-4 all connect with the output of described output rectification filter device 4,
Described micro controller module 8 is ARM microcontroller LPC2478 chip; The coding volume U10 of the coding volume U8 that described coding volume circuit 9 comprises coding volume U7 that model is EC11B15202AA, model is EC11B15202AA, model to be the coding volume U9 of EC11B15202AA and model be EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 14th pin of ARM microcontroller LPC2478 chip, the 16th pin and the 18th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 192nd pin of ARM microcontroller LPC2478 chip, the 177th pin and the 185th pin respectively; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 182nd pin of ARM microcontroller LPC2478 chip, the 184th pin and the 147th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 73rd pin of ARM microcontroller LPC2478 chip, the 67th pin and the 59th pin respectively.
As shown in Figure 2, in the present embodiment, described MOSFET chopper circuit 2 comprises field effect transistor M D0 and field effect transistor M D1, the grid of described field effect transistor M D0 connects with MOSFET drive circuit 6 through the electric capacity CH1 of parallel connection and resistance RH1, the source ground of field effect transistor M D0, the drain electrode of field effect transistor M D0 connects the negative electrode of voltage stabilizing didoe DH3 through diode DH1, the anode of voltage stabilizing didoe DH3 connects with the output of input rectifying filter 1; The grid of described field effect transistor M D1 connects with MOSFET drive circuit 6 through the electric capacity CH3 of parallel connection and resistance RH2, the source ground of field effect transistor M D1, the drain electrode of field effect transistor M D1 connects the negative electrode of voltage stabilizing didoe DH4 through diode DH2, the anode of voltage stabilizing didoe DH4 connects with the output of input rectifying filter 1.
As shown in Figure 2, in the present embodiment, described power conversion circuit 3 comprises transformer T1, Schottky diode MUR3060PT and Schottky diode MUR3060FT, the connection of the anode of original grade coil one end of described transformer T1 and the drain electrode of field effect transistor M D0 and diode DH1 connects, the connection of the anode of the original grade coil other end of transformer T1 and the drain electrode of field effect transistor M D1 and diode DH2 connects, and the link of the anode of the centre cap of the original grade coil of transformer T1 and the anode of voltage stabilizing didoe DH3 and voltage stabilizing didoe DH4 connects; The two ends of the secondary coil of transformer T1 connect with one end of inductance L V1 through Schottky diode MUR3060PT, the output of Schottky diode MUR3060PT connects with the input of Schottky diode MUR3060FT through electric capacity CV1 and electric capacity CV6, and two outputs of Schottky diode MUR3060FT connect with the two ends of the secondary coil of transformer T1 respectively.
In physical cabling, Schottky diode MUR3060PT and the contact between inductance L V1 connect electric capacity CV1 in parallel and one end of electric capacity CV2, electric capacity the CV1 in parallel and electric capacity CV6 of another termination parallel connection of electric capacity CV2 and one end of electric capacity CV7, the link of electric capacity CV6 in parallel and another termination Schottky diode MUR3060FT and inductance L V2 of electric capacity CV7, the other end connecting resistance RS3 of inductance L V1, the other end connecting resistance RS4 of inductance L V2, the other end and the contact between resistance RS3 of inductance L V1 connect electric capacity CV3 electric capacity in parallel, one end of CV4 and electric capacity CV5, electric capacity CV3 electric capacity in parallel, the electric capacity CV8 electric capacity of another termination parallel connection of CV4 and electric capacity CV5, one end of CV9 and electric capacity CV0, electric capacity CV8 electric capacity in parallel, the other end of CV9 and electric capacity CV0 connects with the link of the other end of inductance L V2 and resistance RS4, the equal ground connection of link of the link of electric capacity CV1 and electric capacity CV6, the link of electric capacity CV2 and electric capacity CV7, the link of electric capacity CV3 and electric capacity CV8, the link of electric capacity CV4 and electric capacity CV9 and electric capacity CV5 and electric capacity CV0.
As shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 8, in the present embodiment, described positive voltage sample circuit 7-1 comprises resistance RB11 and resistance RB12, and the link of described resistance RB11 and resistance RB12 connects with the 106th pin of ARM microcontroller LPC2478 chip;
Described positive current sample circuit 7-2 comprises chip U71, and the output of described chip U71 connects with the 102nd pin of ARM microcontroller LPC2478 chip;
Described negative voltage sample circuit 7-3 comprises chip U72, and the output of described chip U72 connects with the 108th pin of ARM microcontroller LPC2478 chip;
Described negative current sample circuit 7-4 comprises chip U73, and the output of described chip U73 connects with the 110th pin of ARM microcontroller LPC2478 chip.
As shown in Figure 4, in the present embodiment, described pwm control circuit 10 comprises the chip U6 that chip U5 that model is TL494 and model are TL494, 1st pin of described chip U5 is connected with the collector electrode of triode QG5 by the resistance RG16 of series connection and resistance RG15, the base stage of triode QG5 is connected with the 144th pin of ARM microcontroller LPC2478 chip by resistance RG13, 2nd pin of chip U5 is connected with the collector electrode of triode QG6 by the resistance RG20 of series connection and resistance RG19, the base stage of triode QG6 is connected with the 150th pin of ARM microcontroller LPC2478 chip by resistance RG17, 9th pin of chip U5 connects the base stage of triode Q51 through resistance R52, the collector electrode of triode Q51 connects with-40V power output end through resistance R53 and resistance R54, 1st pin of described chip U6 is connected with the collector electrode of triode QG2 by the resistance RG06 of series connection and resistance RG05, the base stage of triode QG2 is connected with the collector electrode of triode QG1 by resistance RG03, the base stage of triode QG1 is connected with the 140th pin of ARM microcontroller LPC2478 chip by resistance RG01, 2nd pin of chip U6 is connected with the collector electrode of triode QG4 by the resistance RG12 of series connection and resistance RG11, the base stage of triode QG4 is connected with the collector electrode of triode QG3 by resistance RG09, the base stage of triode QG3 is connected with the 142nd pin of ARM microcontroller LPC2478 chip by resistance RG07, 11st pin of chip U6 connects the base stage of triode Q61 through resistance R62, the collector electrode of triode Q61 connects with-40V power output end through resistance R63 and resistance R64.
In the present embodiment, the link of described resistance R53 and resistance R54 connects with an input of MOSFET drive circuit 6, and the link of described resistance R63 and resistance R64 connects with another input of MOSFET drive circuit 6.
In the present embodiment, described Nixie tube drive circuit 11 comprises the second chip that the first chip that model is 74HC595 and model are 74HC595, and the input of described first chip and the input of the second chip all connect with described ARM microcontroller LPC2478 chip.
In the present embodiment, described first charactron 12-1, the second charactron 12-2, the 3rd charactron 12-3 and the 4th charactron 12-4 are group of four figures pipe; Described first charactron 12-1 and the second charactron 12-2 all connects with the first chip, and described 3rd charactron 12-3 and the 4th charactron 12-4 all connects with the second chip.
During the actual use of the utility model, mains electric rectification is transformed to direct current and sends into MOSFET chopper circuit 2 by input rectifying filter 1, the fixing direct voltage received is become the direct current of adjustable voltage by MOSFET chopper circuit 2, by DC output circuit 5 output voltage after the conditioning filtering and noise reduction of power conversion circuit 3 and output rectification filter device 4, contact in output rectification filter device 4 between inductance L V1 and resistance RS3 is the input of positive current sample circuit 7-2, in output rectification filter device 4, the other end of resistance RS3 is the input of positive voltage sample circuit 7-1, the positive current gathered is sent into micro controller module 8 by positive current sample circuit 7-2, the positive voltage gathered is sent into micro controller module 8 by positive voltage sample circuit 7-1, micro controller module 8 drives Nixie tube drive circuit 11 to make the first charactron 12-1 show positive voltage data, second charactron 12-2 shows positive current data, if the positive current gathered or positive voltage scope be not in the scope of actual demand, adjustable coding volume circuit 9, the switching frequency that micro controller module 8 changes MOSFET field effect transistor in MOSFET chopper circuit 2 by pwm control circuit 10 driven MOS FET drive circuit 6 realizes the adjustable of direct-flow positive voltage, contact in output rectification filter device 4 between inductance L V2 and resistance RS4 is the input of negative current sample circuit 7-4, in output rectification filter device 4, the other end of resistance RS4 is the input of negative voltage sample circuit 7-3, the negative current gathered is sent into micro controller module 8 by negative current sample circuit 7-4, the negative voltage gathered is sent into micro controller module 8 by negative voltage sample circuit 7-3, micro controller module 8 drives Nixie tube drive circuit 11 to make the 3rd charactron 12-3 show negative voltage data, 4th charactron 12-4 shows negative current data, if the negative current gathered or negative voltage range be not in the scope of actual demand, adjustable coding volume circuit 9, the switching frequency that micro controller module 8 changes MOSFET field effect transistor in MOSFET chopper circuit 2 by pwm control circuit 10 driven MOS FET drive circuit 6 realizes the adjustable of negative DC voltage, result of use is good.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection range of technical solutions of the utility model.
Claims (8)
1. an Adjustable switch power supply, it is characterized in that: comprise micro controller module (8) and MOSFET drive circuit (6), and the input rectifying filter (1) connected successively, MOSFET chopper circuit (2), power conversion circuit (3), output rectification filter device (4) and DC output circuit (5), the input of described micro controller module (8) is connected to coding volume circuit (9), positive voltage sample circuit (7-1), positive current sample circuit (7-2), negative voltage sample circuit (7-3) and negative current sample circuit (7-4), the pwm control circuit (10) that the output of described micro controller module (8) is connected to Nixie tube drive circuit (11) and connects with described MOSFET drive circuit (6) input, the output of described MOSFET drive circuit (6) connects with the input of described MOSFET chopper circuit (2), the output of described Nixie tube drive circuit (11) is connected to the first charactron (12-1), second charactron (12-2), 3rd charactron (12-3) and the 4th charactron (12-4), the input of described positive voltage sample circuit (7-1), the input of positive current sample circuit (7-2), the input of negative voltage sample circuit (7-3) and the input of negative current sample circuit (7-4) all connect with the output of described output rectification filter device (4),
Described micro controller module (8) is ARM microcontroller LPC2478 chip; The coding volume U10 of the coding volume U8 that described coding volume circuit (9) comprises coding volume U7 that model is EC11B15202AA, model is EC11B15202AA, model to be the coding volume U9 of EC11B15202AA and model be EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 14th pin of ARM microcontroller LPC2478 chip, the 16th pin and the 18th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 192nd pin of ARM microcontroller LPC2478 chip, the 177th pin and the 185th pin respectively; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 182nd pin of ARM microcontroller LPC2478 chip, the 184th pin and the 147th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 73rd pin of ARM microcontroller LPC2478 chip, the 67th pin and the 59th pin respectively.
2. according to a kind of Adjustable switch power supply according to claim 1, it is characterized in that: described MOSFET chopper circuit (2) comprises field effect transistor M D0 and field effect transistor M D1, the grid of described field effect transistor M D0 connects with MOSFET drive circuit (6) through the electric capacity CH1 of parallel connection and resistance RH1, the source ground of field effect transistor M D0, the drain electrode of field effect transistor M D0 connects the negative electrode of voltage stabilizing didoe DH3 through diode DH1, the anode of voltage stabilizing didoe DH3 connects with the output of input rectifying filter (1); The grid of described field effect transistor M D1 connects with MOSFET drive circuit (6) through the electric capacity CH3 of parallel connection and resistance RH2, the source ground of field effect transistor M D1, the drain electrode of field effect transistor M D1 connects the negative electrode of voltage stabilizing didoe DH4 through diode DH2, the anode of voltage stabilizing didoe DH4 connects with the output of input rectifying filter (1).
3. according to a kind of Adjustable switch power supply according to claim 2, it is characterized in that: described power conversion circuit (3) comprises transformer T1, Schottky diode MUR3060PT and Schottky diode MUR3060FT, the connection of the anode of original grade coil one end of described transformer T1 and the drain electrode of field effect transistor M D0 and diode DH1 connects, the connection of the anode of the original grade coil other end of transformer T1 and the drain electrode of field effect transistor M D1 and diode DH2 connects, the link of the anode of the centre cap of the original grade coil of transformer T1 and the anode of voltage stabilizing didoe DH3 and voltage stabilizing didoe DH4 connects, the two ends of the secondary coil of transformer T1 connect with one end of inductance L V1 through Schottky diode MUR3060PT, the output of Schottky diode MUR3060PT connects with the input of Schottky diode MUR3060FT through electric capacity CV1 and electric capacity CV6, and two outputs of Schottky diode MUR3060FT connect with the two ends of the secondary coil of transformer T1 respectively.
4. according to a kind of Adjustable switch power supply according to claim 1, it is characterized in that: described positive voltage sample circuit (7-1) comprises resistance RB11 and resistance RB12, the link of described resistance RB11 and resistance RB12 connects with the 106th pin of ARM microcontroller LPC2478 chip;
Described positive current sample circuit (7-2) comprises chip U71, and the output of described chip U71 connects with the 102nd pin of ARM microcontroller LPC2478 chip;
Described negative voltage sample circuit (7-3) comprises chip U72, and the output of described chip U72 connects with the 108th pin of ARM microcontroller LPC2478 chip;
Described negative current sample circuit (7-4) comprises chip U73, and the output of described chip U73 connects with the 110th pin of ARM microcontroller LPC2478 chip.
5. according to a kind of Adjustable switch power supply according to claim 1, it is characterized in that: described pwm control circuit (10) comprises the chip U6 that chip U5 that model is TL494 and model are TL494, 1st pin of described chip U5 is connected with the collector electrode of triode QG5 by the resistance RG16 of series connection and resistance RG15, the base stage of triode QG5 is connected with the 144th pin of ARM microcontroller LPC2478 chip by resistance RG13, 2nd pin of chip U5 is connected with the collector electrode of triode QG6 by the resistance RG20 of series connection and resistance RG19, the base stage of triode QG6 is connected with the 150th pin of ARM microcontroller LPC2478 chip by resistance RG17, 9th pin of chip U5 connects the base stage of triode Q51 through resistance R52, the collector electrode of triode Q51 connects with-40V power output end through resistance R53 and resistance R54, 1st pin of described chip U6 is connected with the collector electrode of triode QG2 by the resistance RG06 of series connection and resistance RG05, the base stage of triode QG2 is connected with the collector electrode of triode QG1 by resistance RG03, the base stage of triode QG1 is connected with the 140th pin of ARM microcontroller LPC2478 chip by resistance RG01, 2nd pin of chip U6 is connected with the collector electrode of triode QG4 by the resistance RG12 of series connection and resistance RG11, the base stage of triode QG4 is connected with the collector electrode of triode QG3 by resistance RG09, the base stage of triode QG3 is connected with the 142nd pin of ARM microcontroller LPC2478 chip by resistance RG07, 11st pin of chip U6 connects the base stage of triode Q61 through resistance R62, the collector electrode of triode Q61 connects with-40V power output end through resistance R63 and resistance R64.
6. according to a kind of Adjustable switch power supply according to claim 5, it is characterized in that: the link of described resistance R53 and resistance R54 connects with an input of MOSFET drive circuit (6), the link of described resistance R63 and resistance R64 connects with another input of MOSFET drive circuit (6).
7. according to a kind of Adjustable switch power supply according to claim 1, it is characterized in that: described Nixie tube drive circuit (11) comprises the second chip that the first chip that model is 74HC595 and model are 74HC595, and the input of described first chip and the input of the second chip all connect with described ARM microcontroller LPC2478 chip.
8. according to a kind of Adjustable switch power supply according to claim 7, it is characterized in that: described first charactron (12-1), the second charactron (12-2), the 3rd charactron (12-3) and the 4th charactron (12-4) are group of four figures pipe; Described first charactron (12-1) and the second charactron (12-2) all connect with the first chip, and described 3rd charactron (12-3) and the 4th charactron (12-4) all connect with the second chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356542.2U CN204615656U (en) | 2015-05-28 | 2015-05-28 | A kind of Adjustable switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356542.2U CN204615656U (en) | 2015-05-28 | 2015-05-28 | A kind of Adjustable switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204615656U true CN204615656U (en) | 2015-09-02 |
Family
ID=53968179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520356542.2U Expired - Fee Related CN204615656U (en) | 2015-05-28 | 2015-05-28 | A kind of Adjustable switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204615656U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402347A (en) * | 2017-08-28 | 2017-11-28 | 广州子锐机器人技术有限公司 | A kind of industrial robot fault intelligent detection device |
| CN108087755A (en) * | 2017-12-30 | 2018-05-29 | 珠海商照光电科技有限公司 | A kind of high efficiency is without the low dazzle eye-protecting lamp of stroboscopic |
| CN109032233A (en) * | 2016-08-18 | 2018-12-18 | 华为技术有限公司 | A kind of device for generating voltage and semiconductor chip |
| CN112564457A (en) * | 2019-09-10 | 2021-03-26 | 中车株洲电力机车研究所有限公司 | Current transformation system and power supply circuit of IGBT driving device |
-
2015
- 2015-05-28 CN CN201520356542.2U patent/CN204615656U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109032233A (en) * | 2016-08-18 | 2018-12-18 | 华为技术有限公司 | A kind of device for generating voltage and semiconductor chip |
| CN107402347A (en) * | 2017-08-28 | 2017-11-28 | 广州子锐机器人技术有限公司 | A kind of industrial robot fault intelligent detection device |
| CN108087755A (en) * | 2017-12-30 | 2018-05-29 | 珠海商照光电科技有限公司 | A kind of high efficiency is without the low dazzle eye-protecting lamp of stroboscopic |
| CN108087755B (en) * | 2017-12-30 | 2024-03-29 | 珠海商照光电科技有限公司 | High-efficiency stroboflash-free low-glare eye-protection lamp |
| CN112564457A (en) * | 2019-09-10 | 2021-03-26 | 中车株洲电力机车研究所有限公司 | Current transformation system and power supply circuit of IGBT driving device |
| CN112564457B (en) * | 2019-09-10 | 2021-09-21 | 中车株洲电力机车研究所有限公司 | Current transformation system and power supply circuit of IGBT driving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204615656U (en) | A kind of Adjustable switch power supply | |
| CN102545580B (en) | In-system programming universal PFC multifunctional processor | |
| CN104407660B (en) | Online integrated high precision constant current source | |
| CN202183735U (en) | High-effective and simple intelligent control circuit | |
| CN203415778U (en) | ZigBee wireless communication technology based intelligent socket | |
| CN204652229U (en) | A kind of Adjustable switch power supply based on single-chip microcomputer two machine communication | |
| CN202759643U (en) | LED television and backlight driving circuit thereof | |
| CN204633456U (en) | AC/DC frequency conversion type refrigerating system | |
| CN203632330U (en) | Separate-type wireless charger | |
| CN202931213U (en) | Thyristor alternating current voltage regulating circuit | |
| CN203501377U (en) | Controller of embedded central air conditioner monitoring system | |
| CN104633849A (en) | Energy-saving control device for air conditioner based on Internet of Things | |
| CN209626578U (en) | Twoport charge power supply socket circuit structure based on fast charge agreement | |
| CN202889233U (en) | Low-power-consumption power supply circuit | |
| CN207706180U (en) | A kind of sending/receiving module based on Boost circuit | |
| CN202889232U (en) | Low-power-consumption double-channel power supply energy-saving circuit | |
| CN205750611U (en) | A kind of regulator control circuit | |
| CN205754965U (en) | A kind of intelligent distant control LED | |
| CN204425197U (en) | For the electromagnetic interference denoising device of former limit sampling LED control system | |
| CN204761276U (en) | A switching power supply for converter | |
| CN204131139U (en) | A kind of LED intelligent drive circuit system | |
| CN204512593U (en) | The control circuit of induction tap and apply its induction tap | |
| CN204290766U (en) | A kind of electronics automatic reverse power supply | |
| CN204478386U (en) | The distributed coolant pump controller of central air conditioning | |
| CN203261521U (en) | LED switch power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160528 |