CN204652229U - A kind of Adjustable switch power supply based on single-chip microcomputer two machine communication - Google Patents
A kind of Adjustable switch power supply based on single-chip microcomputer two machine communication Download PDFInfo
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- CN204652229U CN204652229U CN201520357458.2U CN201520357458U CN204652229U CN 204652229 U CN204652229 U CN 204652229U CN 201520357458 U CN201520357458 U CN 201520357458U CN 204652229 U CN204652229 U CN 204652229U
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Abstract
The utility model discloses a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, comprise the first micro controller module, second micro controller module and MOSFET drive circuit, and the first current rectifying and wave filtering circuit connected successively, MOSFET chopper circuit, power conversion circuit, second current rectifying and wave filtering circuit and DC output circuit, first micro controller module is connected to the first coding volume, voltage sampling circuit, current sampling circuit and the first pwm control circuit, second micro controller module is connected to the second coding volume, display screen and the second pwm control circuit, first pwm control circuit and the second pwm control circuit all connect with MOSFET drive circuit, the input of the output termination MOSFET chopper circuit of MOSFET drive circuit, first micro controller module connects the second micro controller module through serial communication circuit, the utility model is novel in design, precision is high, voltage 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 based on single-chip microcomputer two machine communication.
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 is all as central processing unit by a DSP microprocessor or ARM microprocessor, manual adjustments resistance value changes pressurizer and exports generating positive and negative voltage or reversal data, 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, central processing unit controls complicated, therefore, nowadays a kind of structure is lacked simple, cost is low, reasonable in design, output dc voltage is adjustable and easy and simple to handle, adopt the single-chip microcomputer of two low-power consumption respectively to the Adjustable switch power supply of the single-chip microcomputer two machine communication that positive voltage positive current and negative voltage negative current regulate, by sample circuit gather respectively output rectification filter device export voltage or current data send in a single-chip microcomputer, by serial communication, the data of collection are passed to another single-chip microcomputer, when needs regulation output positive voltage positive current scope, regulate the first coding volume, when needs regulation output negative voltage negative current scope, regulate the second coding volume, voltage adjustable extent is large, alleviate the control challenge that use processor brings, use coding volume regulation output voltage, the adjustment realizing output voltage of fast and stable, strong interference immunity, precision is high, noise is little, and the output voltage adjustable range of solution Conventional tunable formula Switching Power Supply is little, error is large, cost is high, it is loaded down with trivial details to connect complex operations, the problems such as anti-interference is weak.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication is provided, it is rationally novel in design, structure is simple, employing two low-power scms regulate positive voltage positive current and negative voltage negative current respectively, control precision is high, and use current potential encoder to change circuit impedance conversion, noise is little, cost is low, 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 based on single-chip microcomputer two machine communication, it is characterized in that: comprise the first micro controller module, second micro controller module and MOSFET drive circuit, and the first current rectifying and wave filtering circuit connected successively, MOSFET chopper circuit, power conversion circuit, second current rectifying and wave filtering circuit and DC output circuit, the input of described first micro controller module is connected to the first coding volume, voltage sampling circuit and current sampling circuit, the output of described first micro controller module is connected to the first pwm control circuit, the input of described second micro controller module is connected to the second coding volume, the output of described second micro controller module is connected to display screen and the second pwm control circuit, the output of described first pwm control circuit and the output of the second pwm control circuit all connect with the input of described MOSFET drive circuit, the output of described MOSFET drive circuit connects with the input of described MOSFET chopper circuit, the input of described voltage sampling circuit and the input of current sampling circuit all connect with the output of described second current rectifying and wave filtering circuit, described first micro controller module is connected with described second micro controller module by serial communication circuit,
Described first micro controller module comprises the single-chip microcomputer U1 that model is STC12C5616AD; Described first coding volume comprises the coding volume U8 that coding volume U7 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 23rd pin of single-chip microcomputer U1, the 24th pin and the 25th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 13rd pin of single-chip microcomputer U1, the 14th pin and the 16th pin respectively;
Described second micro controller module comprises the single-chip microcomputer U2 that model is STC12C5616AD; Described second coding volume comprises the coding volume U10 that coding volume U9 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 30th pin of single-chip microcomputer U2, the 27th pin and the 29th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 14th pin of single-chip microcomputer U2, the 11st pin and the 13rd pin respectively.
Above-mentioned a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, it is characterized in that: described MOSFET drive circuit comprises chip U12 that model is TL494, triode Q21, triode Q22 and driving chip IR2110, the E2 pin of described chip U12 connects the base stage of triode Q21 through the resistance R22 of parallel connection and electric capacity C24, the emitter of triode Q21 connects 12V power output end, and the collector electrode of triode Q21 connects the HIN pin of driving chip IR2110; The C1 pin of described chip U12 connects the base stage of triode Q22 through the resistance R25 of parallel connection and electric capacity C25, and the emitter of triode Q22 connects 12V power output end, and the collector electrode of triode Q22 connects the LIN pin of driving chip IR2110.
Above-mentioned a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, 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 the LO pin of driving chip IR2110 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 the HO pin of driving chip IR2110 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 based on single-chip microcomputer two machine communication, 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 based on single-chip microcomputer two machine communication, it is characterized in that: described first pwm control circuit comprises the chip U5 that model is 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 30th pin of single-chip microcomputer U1 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 29th pin of single-chip microcomputer U1 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, the link of resistance R53 and resistance R54 connects with the IN1+ pin of driving chip IR2110.
Above-mentioned a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, is characterized in that: described serial communication circuit is RS232 serial communication module.
Above-mentioned a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, it is characterized in that: described second pwm control circuit comprises the chip U6 that model is TL494, 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 10th pin of single-chip microcomputer U2 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 26th pin of single-chip microcomputer U2 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, the link of resistance R63 and resistance R64 connects with the IN1-pin of driving chip IR2110.
Above-mentioned a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication, is characterized in that: described display screen is LCDs or digitron display screen.
The utility model compared with prior art has the following advantages:
1, the utility model is by arranging the first micro controller module and the second micro controller module, respectively positive voltage positive current and negative voltage negative current are regulated, and the first micro controller module and the second micro controller module all adopt low-power scm STC12C5616AD, cost is low, and structure is simple.
2, the power data of the first micro controller module collection is transferred to the second micro controller module by arranging serial communication circuit by the utility model fast, and circuit is simple.
3, the utility model is that direct current sends into MOSFET chopper circuit by arranging the first current rectifying and wave filtering circuit by mains electric rectification filtering transformation, MOSFET chopper circuit drives through MOSFET drive circuit, make the folding of MOSFET field effect transistor, arrange the second current rectifying and wave filtering circuit the direct voltage of conversion is exported for actual through denoising voltage stabilizing, circuit is simple, reliable and stable.
4, 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.
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, structure is simple, employing two low-power scms regulate positive voltage positive current and negative voltage negative current respectively, control precision is high, current potential encoder is used to change circuit impedance conversion, noise is little, cost is low, 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 theory diagrams of the utility model MOSFET drive circuit.
Fig. 3 is the circuit connecting relation schematic diagram of the utility model MOSFET chopper circuit, power conversion circuit and output rectification filter device.
Fig. 4 is the circuit connecting relation schematic diagram of the utility model first micro controller module and the first coding volume.
Fig. 5 is the circuit theory diagrams of the utility model first pwm control circuit.
Fig. 6 is the circuit connecting relation schematic diagram of the utility model second micro controller module and the second coding volume.
Fig. 7 is the circuit theory diagrams of the utility model second pwm control circuit.
Description of reference numerals:
1-the first current rectifying and wave filtering circuit; 2-MOSFET chopper circuit; 3-power conversion circuit;
4-the second current rectifying and wave filtering circuit; 5-DC output circuit; 6-voltage sampling circuit;
7-current sampling circuit; 8-the first micro controller module; 9-the first coding volume;
10-the first pwm control circuit; 11-serial communication circuit;
12-the second micro controller module; 13-the second coding volume;
14-the second pwm control circuit; 15-display screen;
16-MOSFET drive circuit.
Embodiment
As Fig. 1, shown in Fig. 4 and Fig. 6, the utility model comprises the first micro controller module 8, second micro controller module 12 and MOSFET drive circuit 16, and the first current rectifying and wave filtering circuit 1 connected successively, MOSFET chopper circuit 2, power conversion circuit 3, second current rectifying and wave filtering circuit 4 and DC output circuit 5, the input of described first micro controller module 8 is connected to the first coding volume 9, voltage sampling circuit 6 and current sampling circuit 7, the output of described first micro controller module 8 is connected to the first pwm control circuit 10, the input of described second micro controller module 12 is connected to the second coding volume 13, the output of described second micro controller module 12 is connected to display screen 15 and the second pwm control circuit 14, the output of described first pwm control circuit 10 and the output of the second pwm control circuit 14 all connect with the input of described MOSFET drive circuit 16, the output of described MOSFET drive circuit 16 connects with the input of described MOSFET chopper circuit 2, the input of described voltage sampling circuit 6 and the input of current sampling circuit 7 all connect with the output of described second current rectifying and wave filtering circuit 4, described first micro controller module 8 is connected with described second micro controller module 12 by serial communication circuit 11.
Described first micro controller module 8 comprises the single-chip microcomputer U1 that model is STC12C5616AD; Described first coding volume 9 comprises the coding volume U8 that coding volume U7 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 23rd pin of single-chip microcomputer U1, the 24th pin and the 25th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 13rd pin of single-chip microcomputer U1, the 14th pin and the 16th pin respectively.
Described second micro controller module 12 comprises the single-chip microcomputer U2 that model is STC12C5616AD; Described second coding volume 13 comprises the coding volume U10 that coding volume U9 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 30th pin of single-chip microcomputer U2, the 27th pin and the 29th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 14th pin of single-chip microcomputer U2, the 11st pin and the 13rd pin respectively.
As shown in Figure 2, in the present embodiment, described MOSFET drive circuit 16 comprises chip U12 that model is TL494, triode Q21, triode Q22 and driving chip IR2110, the E2 pin of described chip U12 connects the base stage of triode Q21 through the resistance R22 of parallel connection and electric capacity C24, the emitter of triode Q21 connects 12V power output end, and the collector electrode of triode Q21 connects the HIN pin of driving chip IR2110; The C1 pin of described chip U12 connects the base stage of triode Q22 through the resistance R25 of parallel connection and electric capacity C25, and the emitter of triode Q22 connects 12V power output end, and the collector electrode of triode Q22 connects the LIN pin of driving chip IR2110.
As shown in Figure 3, 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 the LO pin of driving chip IR2110 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 the HO pin of driving chip IR2110 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 3, 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 Figure 5, in the present embodiment, described first pwm control circuit 10 comprises the chip U5 that model is 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 30th pin of single-chip microcomputer U1 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 29th pin of single-chip microcomputer U1 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, the link of resistance R53 and resistance R54 connects with the IN1+ pin of driving chip IR2110.
In the present embodiment, described serial communication circuit 11 is RS232 serial communication module.
As shown in Figure 7, in the present embodiment, described second pwm control circuit 14 comprises the chip U6 that model is TL494, 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 10th pin of single-chip microcomputer U2 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 26th pin of single-chip microcomputer U2 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, the link of resistance R63 and resistance R64 connects with the IN1-pin of driving chip IR2110.
In the present embodiment, described display screen 15 is LCDs or digitron display screen.
During the actual use of the utility model, mains electric rectification is transformed to direct current and sends into MOSFET chopper circuit 2 by the first current rectifying and wave filtering circuit 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 the second current rectifying and wave filtering circuit 4, voltage sampling circuit 6 and current sampling circuit 7 gather the electric current and voltage data of the second current rectifying and wave filtering circuit 4 output and are sent in the first micro controller module 8, the electric current and voltage data received are transferred to the second micro controller module 12 by serial communication circuit 11 by the first micro controller module 8, and pass through the real-time display current data information of display screen 15, when gather electric current and voltage be on the occasion of time, if the positive current gathered or positive voltage scope be not in the scope of actual demand, adjustable first current potential encoder 9 changes circuit impedance, the switching frequency that first micro controller module 8 changes MOSFET field effect transistor in MOSFET chopper circuit 2 by the first pwm control circuit 10 driven MOS FET drive circuit 16 realizes the adjustable of positive voltage positive current, when the electric current and voltage gathered is negative value, if the negative current gathered or negative voltage range be not in the scope of actual demand, adjustable second current potential encoder 13 changes circuit impedance, the switching frequency that second micro controller module 12 changes MOSFET field effect transistor in MOSFET chopper circuit 2 by the second pwm control circuit 14 driven MOS FET drive circuit 16 realizes the adjustable of negative voltage negative current, result of use is good, control simple, precision is high.
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. the Adjustable switch power supply based on single-chip microcomputer two machine communication, it is characterized in that: comprise the first micro controller module (8), second micro controller module (12) and MOSFET drive circuit (16), and the first current rectifying and wave filtering circuit (1) connected successively, MOSFET chopper circuit (2), power conversion circuit (3), second current rectifying and wave filtering circuit (4) and DC output circuit (5), the input of described first micro controller module (8) is connected to the first coding volume (9), voltage sampling circuit (6) and current sampling circuit (7), the output of described first micro controller module (8) is connected to the first pwm control circuit (10), the input of described second micro controller module (12) is connected to the second coding volume (13), the output of described second micro controller module (12) is connected to display screen (15) and the second pwm control circuit (14), the output of described first pwm control circuit (10) and the output of the second pwm control circuit (14) all connect with the input of described MOSFET drive circuit (16), the output of described MOSFET drive circuit (16) connects with the input of described MOSFET chopper circuit (2), the input of described voltage sampling circuit (6) and the input of current sampling circuit (7) all connect with the output of described second current rectifying and wave filtering circuit (4), described first micro controller module (8) is connected with described second micro controller module (12) by serial communication circuit (11),
Described first micro controller module (8) comprises the single-chip microcomputer U1 that model is STC12C5616AD; Described first coding volume (9) comprises the coding volume U8 that coding volume U7 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U7, the 3rd pin and the 5th pin connect with the 23rd pin of single-chip microcomputer U1, the 24th pin and the 25th pin respectively; 2nd pin of described coding volume U8, the 3rd pin and the 5th pin connect with the 13rd pin of single-chip microcomputer U1, the 14th pin and the 16th pin respectively;
Described second micro controller module (12) comprises the single-chip microcomputer U2 that model is STC12C5616AD; Described second coding volume (13) comprises the coding volume U10 that coding volume U9 that model is EC11B15202AA and model are EC11B15202AA; 2nd pin of described coding volume U9, the 3rd pin and the 5th pin connect with the 30th pin of single-chip microcomputer U2, the 27th pin and the 29th pin respectively; 2nd pin of described coding volume U10, the 3rd pin and the 5th pin connect with the 14th pin of single-chip microcomputer U2, the 11st pin and the 13rd pin respectively.
2. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 1, it is characterized in that: described MOSFET drive circuit (16) comprises chip U12 that model is TL494, triode Q21, triode Q22 and driving chip IR2110, the E2 pin of described chip U12 connects the base stage of triode Q21 through the resistance R22 of parallel connection and electric capacity C24, the emitter of triode Q21 connects 12V power output end, and the collector electrode of triode Q21 connects the HIN pin of driving chip IR2110; The C1 pin of described chip U12 connects the base stage of triode Q22 through the resistance R25 of parallel connection and electric capacity C25, and the emitter of triode Q22 connects 12V power output end, and the collector electrode of triode Q22 connects the LIN pin of driving chip IR2110.
3. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 2, 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 the LO pin of driving chip IR2110 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 the HO pin of driving chip IR2110 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).
4. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 3, 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.
5. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 2, it is characterized in that: described first pwm control circuit (10) comprises the chip U5 that model is 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 30th pin of single-chip microcomputer U1 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 29th pin of single-chip microcomputer U1 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, the link of resistance R53 and resistance R54 connects with the IN1+ pin of driving chip IR2110.
6. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 1, it is characterized in that: described serial communication circuit (11) is RS232 serial communication module.
7. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 2, it is characterized in that: described second pwm control circuit (14) comprises the chip U6 that model is TL494,1st 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 10th pin of single-chip microcomputer U2 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 26th pin of single-chip microcomputer U2 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, the link of resistance R63 and resistance R64 connects with the IN1-pin of driving chip IR2110.
8. according to a kind of Adjustable switch power supply based on single-chip microcomputer two machine communication according to claim 1, it is characterized in that: described display screen (15) is LCDs or digitron display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357458.2U CN204652229U (en) | 2015-05-28 | 2015-05-28 | A kind of Adjustable switch power supply based on single-chip microcomputer two machine communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357458.2U CN204652229U (en) | 2015-05-28 | 2015-05-28 | A kind of Adjustable switch power supply based on single-chip microcomputer two machine communication |
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| CN204652229U true CN204652229U (en) | 2015-09-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI655548B (en) * | 2017-10-13 | 2019-04-01 | 技嘉科技股份有限公司 | Controlling circuit and operation method for arranging priority and solving the signal conflict in the protocol interface |
| CN112803819A (en) * | 2021-01-15 | 2021-05-14 | 谢恩来 | Low-power inverter power circuit |
-
2015
- 2015-05-28 CN CN201520357458.2U patent/CN204652229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI655548B (en) * | 2017-10-13 | 2019-04-01 | 技嘉科技股份有限公司 | Controlling circuit and operation method for arranging priority and solving the signal conflict in the protocol interface |
| CN112803819A (en) * | 2021-01-15 | 2021-05-14 | 谢恩来 | Low-power inverter power circuit |
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