CN204856138U - Invariable power output control circuit of ultrasonic wave - Google Patents
Invariable power output control circuit of ultrasonic wave Download PDFInfo
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- CN204856138U CN204856138U CN201520637955.8U CN201520637955U CN204856138U CN 204856138 U CN204856138 U CN 204856138U CN 201520637955 U CN201520637955 U CN 201520637955U CN 204856138 U CN204856138 U CN 204856138U
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Abstract
The utility model discloses an invariable power output control circuit of ultrasonic wave, including microcontroller, rectification filter circuit, transducer and touch -sensitive screen, microcontroller's input termination is useful in the current sampling circuit voltage sampling circuit who gathers transducer work current -voltage data, and microcontroller's output termination has modulated circuit, has met inverter circuit, filter circuit 0 and invariable filter circuit 1 between rectification filter circuit and the transducer in proper order, and current sampling circuit's input and voltage sampling circuit's input all meet with the output of transducer, invariable power control circuit is put U2, fortune including fortune and is put that U4 is put to U3, fortune, U5 and thermistor R34 are put to fortune, the utility model relates to a novelty, simple structure has the invariable function of output ultrasonic wave power signal, adopts fortune to put U2, fortune and puts U3 and fortune and put that U4 constitutes subtraction amplifier circuit and use fortune to put U5 and thermistor R34 constitutes feedback loop, and the circuit is stable, the work safety, the practicality is strong.
Description
Technical field
The utility model belongs to ultrasonic technology field, is specifically related to a kind of ultrasound wave firm power output control circuit.
Background technology
Ultrasonic listening technical development is very swift and violent, medical ultrasonic instrument has become the indispensable diagnostic means of clinical medicine, sonophoresis utilizes the ultrasonic percutaneous dosing technology as physics promoter, ultrasound wave promotes drug percutaneous or mucosal absorption, transdermal drug delivery system can avoid the first pass effect of liver and medicine in GI deactivation, the absorption of medicine is not by the impact of gastrointestinal factors, reduce the individual difference of medication, maintain constant effective blood drug concentration or physiological effect, the blood concentration peak valley phenomenon avoiding oral administration to cause, reduce toxicity, reduce administration number of times, improve therapeutic efficacy, extend action time, avoid multiple dose administration, start to apply to sports medical science widely, although although sonophoresis is extensively promoted the use of clinical, but at present during sonophoresis solving practical problems, ultrasonic frequency, the state such as intensity and output power affects the performance of its cutaneous penetration, stability and safety coefficient, existing ultrasonic power exports the embedded system that adopts more and directly produces high-frequency signal, external ultrasonic transducer and transmitter, ultrasonic power exports constant, Cutaneous permeation influential effect is slight and use cost is high, therefore, nowadays a kind of structure is lacked simple, circuit stability, use safety, reasonable in design, response is fast, exported the ultrasound wave firm power output control circuit of firm power in conjunction with Single-chip Controlling by converter technique, in real time detection is regulated to transducer output power, use according to reality and adopt feedback regulation control, transducer working current voltage is made to remain in a stable and controlled scope, safety coefficient is high.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of ultrasound wave firm power output control circuit is provided, it is rationally novel in design, structure is simple, firm power control circuit adopts amplifier U2, amplifier U3 and amplifier U4 to form subtraction amplification circuit and uses amplifier U5 and thermistor to form backfeed loop, circuit stability, 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 ultrasound wave firm power output control circuit, it is characterized in that: comprise microcontroller, current rectifying and wave filtering circuit, transducer and the touch-screen connected with described microcontroller, the input end of described microcontroller is connected to the current sampling circuit for gathering transducer working current and the voltage sampling circuit for gathering transducer operating voltage, the output terminal of described microcontroller is connected to modulation circuit, inverter circuit is connected to successively between described current rectifying and wave filtering circuit and described transducer, match circuit and firm power control circuit, the input end of described current sampling circuit and the input end of voltage sampling circuit all connect with the output terminal of transducer,
Described firm power control circuit comprises amplifier U2, amplifier U3, amplifier U4, amplifier U5 and thermistor R34, the inverting input of described amplifier U2 connects with one end of resistance R3, the output terminal of amplifier U2 divides two-way, one tunnel connects with the inverting input of amplifier U2 through resistance R1, and another road connects with the in-phase input end of amplifier U3 through resistance R4; The inverting input of amplifier U3 is through resistance R6 ground connection, and the output terminal of amplifier U3 divides two-way, and a road connects with the inverting input of amplifier U3 through resistance R10, and another road connects with the inverting input of amplifier U4 through resistance R5; The in-phase input end of amplifier U4 is through resistance R7 ground connection, and the output terminal of amplifier U4 divides three tunnels, and a road connects with the inverting input of amplifier U4 through resistance R2, and another road connects with the inverting input of amplifier U5 through thermistor R34, and the 3rd tunnel connects with transducer; The in-phase input end of amplifier U5 is through resistance R11 ground connection, and the output terminal of amplifier U5 connects with one end of resistance R16, and the other end of resistance R16 divides two-way, and a road connects with the in-phase input end of amplifier U2, and another road connects with the inverting input of amplifier U5 through resistance R18.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described current rectifying and wave filtering circuit comprises rectifier bridge D1 and amplifier U1, the positive direct-current output terminal of described rectifier bridge D1 divides two-way, one tunnel connects with one end of electric capacity C5, and another road connects with the inverting input of amplifier U1 through resistance R13 and resistance R14; The negative DC output end of rectifier bridge D1 divides two-way, and a road connects with the other end of electric capacity C5, another road ground connection; The link of the inverting input of resistance R14 and amplifier U1 is through electric capacity C2 ground connection, and the output terminal of amplifier U1 divides two-way, and a road connects with the link of resistance R13 and resistance R14 through electric capacity C1, and another road is through resistance R8 and resistance R9 ground connection; The link of resistance R8 and resistance R9 connects with the in-phase input end of amplifier U1.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described inverter circuit is the full-bridge circuit that MOSFET pipe Q1, MOSFET pipe Q2, MOSFET pipe Q3 and MOSFET pipe Q4 form, the drain electrode of described MOSFET pipe Q1 and the drain electrode of MOSFET pipe Q2 all connect with the output terminal of amplifier U1, the drain electrode of MOSFET pipe Q3 and the equal ground connection of drain electrode of MOSFET pipe Q4.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described modulation circuit comprises triode Q5 and triode Q6, the emitter of described triode Q5 divides three tunnels, one tunnel connects with the base stage of triode Q5 through diode D2, another road connects with the grid of MOSFET pipe Q1 through resistance R17, and the 3rd tunnel connects with the grid of MOSFET pipe Q4 through resistance R19; The base stage of triode Q5 divides two-way, and a road connects with microcontroller, and another road connects with the collector of triode Q5 through resistance R21; The grounded collector of triode Q5, the emitter of triode Q6 divides three tunnels, and a road connects with the base stage of triode Q6 through diode D3, and another road connects with the grid of MOSFET pipe Q2 through resistance R15, and the 3rd tunnel connects with the grid of MOSFET pipe Q3 through resistance R20; The base stage of triode Q6 divides two-way, and a road connects with microcontroller, and another road connects with the collector of triode Q6 through resistance R25; The grounded collector of triode Q6.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described match circuit comprises transformer T1, the one end on the former limit of described transformer T1 connects with an output terminal of full-bridge circuit through inductance L 2 and resistance R12, the other end on the former limit of transformer T1 connects with another output terminal of full-bridge circuit, one end of the secondary of transformer T1 connects through the other end of inductance L 1 with resistance R3, the other end ground connection of the secondary of transformer T1.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described current sampling circuit comprises amplifier U6, the in-phase input end of described amplifier U6 connects with the negative electrode of diode D4, the anode of diode D4 connects with the output terminal of amplifier U4, the output terminal of amplifier U4 divides three tunnels, one tunnel connects with 12V power output end through resistance R23, and another road connects with the link of one end of electric capacity C6 and the negative electrode of diode D5 through resistance R26, and the 3rd tunnel connects with microcontroller; The link of the other end of electric capacity C6 and the anode of diode D5 connects with the inverting input of amplifier U6 through resistance R24.
Above-mentioned a kind of ultrasound wave firm power output control circuit, it is characterized in that: described voltage sampling circuit comprises amplifier U7 and photo-coupler FODM452, the in-phase input end of described amplifier U7 is through resistance R30, electric capacity C7 in parallel and diode D6, and resistance R27 connects with 12V power output end, the inverting input of amplifier U7 connects with the output terminal of amplifier U4 through resistance R33 and resistance R32, the output terminal of amplifier U7 connects with the 1st pin of photo-coupler FODM452 through resistance R31, 3rd pin of photo-coupler FODM452 and the equal ground connection of the 4th pin, 5th pin of photo-coupler FODM452 connects with microcontroller, 6th pin of photo-coupler FODM452 connects with 12V power output end through resistance R29.
Above-mentioned a kind of ultrasound wave firm power output control circuit, is characterized in that: described microcontroller comprises MSP430F449 single-chip microcomputer.
The utility model compared with prior art has the following advantages:
1, the utility model is by arranging modulation circuit, inverter circuit and match circuit, can export, through match circuit, the power of output is easily absorbed by transducer according to feedback signal dynamic adjustments inverter circuit, increases transfer efficiency, is convenient to promote the use of.
2, by arranging firm power control circuit, the utility model ensures that ultrasonic power output is constant, safe and reliable, input current voltage and the output current voltage of firm power control circuit is compared by amplifier U2, amplifier U3 and amplifier U4 formation subtraction amplification circuit, simultaneously, use amplifier U5 and thermistor R34 to form backfeed loop, make the input current voltage of firm power control circuit and output current voltage difference remain in a stable and controlled scope; When transducer normally works, thermistor R34 temperature and room temperature is close, resistance is very little, can not hinder electric current to pass through in circuit; When transducer is because power is too high or fault and when there is excess current, thermistor R34 increases due to heating power, and resistance can increase severely instantaneously, and feedback factor is increased, thus reduces input, and result of use is good.
3, the utility model is rationally novel in design, and input cost is low, stability and safety, practical, is convenient to promote the use of.
In sum, the utility model is rationally novel in design, structure is simple, there is the function that output ultrasonic wave power signal is constant, adopt amplifier U2, amplifier U3 and amplifier U4 to form subtraction amplification circuit and use amplifier U5 and thermistor R34 to form backfeed loop, circuit stability, work safety, practical, be 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 current sampling circuit.
Fig. 3 is the circuit theory diagrams of the utility model voltage sampling circuit.
Fig. 4 is the circuit theory diagrams of the utility model firm power control circuit.
Fig. 5 is the circuit connecting relation schematic diagram of the utility model current rectifying and wave filtering circuit, inverter circuit, modulation circuit and match circuit.
Description of reference numerals:
1-current rectifying and wave filtering circuit; 2-inverter circuit; 3-match circuit;
4-firm power control circuit; 5-transducer; 6-current sampling circuit;
7-voltage sampling circuit; 8-microcontroller; 9-modulation circuit;
10-touch-screen.
Embodiment
As shown in Figure 1 and Figure 4, the utility model comprises microcontroller 8, current rectifying and wave filtering circuit 1, transducer 5 and the touch-screen 10 connected with described microcontroller 8, the input end of described microcontroller 8 is connected to the current sampling circuit 6 for gathering transducer 5 working current and the voltage sampling circuit 7 for gathering transducer 5 operating voltage, the output terminal of described microcontroller 8 is connected to modulation circuit 9, inverter circuit 2 is connected to successively between described current rectifying and wave filtering circuit 1 and described transducer 5, match circuit 3 and firm power control circuit 4, the input end of described current sampling circuit 6 and the input end of voltage sampling circuit 7 all connect with the output terminal of transducer 5.
Described firm power control circuit 4 comprises amplifier U2, amplifier U3, amplifier U4, amplifier U5 and thermistor R34, the inverting input of described amplifier U2 connects with one end of resistance R3, the output terminal of amplifier U2 divides two-way, one tunnel connects with the inverting input of amplifier U2 through resistance R1, and another road connects with the in-phase input end of amplifier U3 through resistance R4; The inverting input of amplifier U3 is through resistance R6 ground connection, and the output terminal of amplifier U3 divides two-way, and a road connects with the inverting input of amplifier U3 through resistance R10, and another road connects with the inverting input of amplifier U4 through resistance R5; The in-phase input end of amplifier U4 is through resistance R7 ground connection, and the output terminal of amplifier U4 divides three tunnels, and a road connects with the inverting input of amplifier U4 through resistance R2, and another road connects with the inverting input of amplifier U5 through thermistor R34, and the 3rd tunnel connects with transducer 5; The in-phase input end of amplifier U5 is through resistance R11 ground connection, and the output terminal of amplifier U5 connects with one end of resistance R16, and the other end of resistance R16 divides two-way, and a road connects with the in-phase input end of amplifier U2, and another road connects with the inverting input of amplifier U5 through resistance R18.
As shown in Figure 5, in the present embodiment, described current rectifying and wave filtering circuit 1 comprises rectifier bridge D1 and amplifier U1, and the positive direct-current output terminal of described rectifier bridge D1 divides two-way, one tunnel connects with one end of electric capacity C5, and another road connects with the inverting input of amplifier U1 through resistance R13 and resistance R14; The negative DC output end of rectifier bridge D1 divides two-way, and a road connects with the other end of electric capacity C5, another road ground connection; The link of the inverting input of resistance R14 and amplifier U1 is through electric capacity C2 ground connection, and the output terminal of amplifier U1 divides two-way, and a road connects with the link of resistance R13 and resistance R14 through electric capacity C1, and another road is through resistance R8 and resistance R9 ground connection; The link of resistance R8 and resistance R9 connects with the in-phase input end of amplifier U1.
In the present embodiment, described inverter circuit 2 is the full-bridge circuit that MOSFET pipe Q1, MOSFET pipe Q2, MOSFET pipe Q3 and MOSFET pipe Q4 form, the drain electrode of described MOSFET pipe Q1 and the drain electrode of MOSFET pipe Q2 all connect with the output terminal of amplifier U1, the drain electrode of MOSFET pipe Q3 and the equal ground connection of drain electrode of MOSFET pipe Q4.
In the present embodiment, described modulation circuit 9 comprises triode Q5 and triode Q6, the emitter of described triode Q5 divides three tunnels, one tunnel connects with the base stage of triode Q5 through diode D2, another road connects with the grid of MOSFET pipe Q1 through resistance R17, and the 3rd tunnel connects with the grid of MOSFET pipe Q4 through resistance R19; The base stage of triode Q5 divides two-way, and a road connects with microcontroller 8, and another road connects with the collector of triode Q5 through resistance R21; The grounded collector of triode Q5, the emitter of triode Q6 divides three tunnels, and a road connects with the base stage of triode Q6 through diode D3, and another road connects with the grid of MOSFET pipe Q2 through resistance R15, and the 3rd tunnel connects with the grid of MOSFET pipe Q3 through resistance R20; The base stage of triode Q6 divides two-way, and a road connects with microcontroller 8, and another road connects with the collector of triode Q6 through resistance R25; The grounded collector of triode Q6.
In the present embodiment, described match circuit 3 comprises transformer T1, the one end on the former limit of described transformer T1 connects with an output terminal of full-bridge circuit through inductance L 2 and resistance R12, the other end on the former limit of transformer T1 connects with another output terminal of full-bridge circuit, one end of the secondary of transformer T1 connects through the other end of inductance L 1 with resistance R3, the other end ground connection of the secondary of transformer T1.
As shown in Figure 2, in the present embodiment, in the present embodiment, described current sampling circuit 6 comprises amplifier U6, and the in-phase input end of described amplifier U6 connects with the negative electrode of diode D4, and the anode of diode D4 connects with the output terminal of amplifier U4, the output terminal of amplifier U4 divides three tunnels, one tunnel connects with 12V power output end through resistance R23, and another road connects with the link of one end of electric capacity C6 and the negative electrode of diode D5 through resistance R26, and the 3rd tunnel connects with microcontroller 8; The link of the other end of electric capacity C6 and the anode of diode D5 connects with the inverting input of amplifier U6 through resistance R24.
As shown in Figure 3, in the present embodiment, described voltage sampling circuit 7 comprises amplifier U7 and photo-coupler FODM452, the in-phase input end of described amplifier U7 is through resistance R30, electric capacity C7 in parallel and diode D6, and resistance R27 connects with 12V power output end, the inverting input of amplifier U7 connects with the output terminal of amplifier U4 through resistance R33 and resistance R32, the output terminal of amplifier U7 connects with the 1st pin of photo-coupler FODM452 through resistance R31, 3rd pin of photo-coupler FODM452 and the equal ground connection of the 4th pin, 5th pin of photo-coupler FODM452 connects with microcontroller 8, 6th pin of photo-coupler FODM452 connects with 12V power output end through resistance R29.
In the present embodiment, described microcontroller 8 comprises MSP430F449 single-chip microcomputer.
When the utility model uses, by current rectifying and wave filtering circuit 1 alternating current input power supplying is converted to DC voltage and to its filtering and noise reduction, the full-bridge circuit that inverter circuit 2 adopts MOSFET pipe to form, microcontroller 8 exports variable signal and drives modulation circuit 9 to inverter circuit 2 switching signal, the AC signal of inversion is sent into match circuit 3 and is carried out impedance matching, ensure that match circuit 3 makes the power of output easily be absorbed by transducer 5, increase transfer efficiency, reduce ultrasonic energy reflectivity, firm power control circuit 4 is set up between match circuit 3 and transducer 5, by amplifier U2, amplifier U3 and amplifier U4 forms input current voltage and the output current voltage that subtraction amplification circuit compares firm power control circuit, simultaneously, amplifier U5 and thermistor R34 is used to form backfeed loop, the input current voltage of firm power control circuit and output current voltage difference is made to remain in a stable and controlled scope, use touch-screen 10 that ultrasonic power output threshold range is set in advance, and actual output data are checked in display, current sampling circuit 6 and voltage sampling circuit 7 is used to gather transducer 5 real work parameter, and voltage sampling circuit 7 uses photo-coupler FODM452 to protect microcontroller 8 not damaged by high voltage, safe and reliable, 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 domain of technical solutions of the utility model.
Claims (8)
1. a ultrasound wave firm power output control circuit, it is characterized in that: comprise microcontroller (8), current rectifying and wave filtering circuit (1), transducer (5) and the touch-screen (10) connected with described microcontroller (8), the input end of described microcontroller (8) is connected to the current sampling circuit (6) for gathering transducer (5) working current and the voltage sampling circuit (7) for gathering transducer (5) operating voltage, the output terminal of described microcontroller (8) is connected to modulation circuit (9), inverter circuit (2) is connected to successively between described current rectifying and wave filtering circuit (1) and described transducer (5), match circuit (3) and firm power control circuit (4), the input end of described current sampling circuit (6) and the input end of voltage sampling circuit (7) all connect with the output terminal of transducer (5),
Described firm power control circuit (4) comprises amplifier U2, amplifier U3, amplifier U4, amplifier U5 and thermistor R34, the inverting input of described amplifier U2 connects with one end of resistance R3, the output terminal of amplifier U2 divides two-way, one tunnel connects with the inverting input of amplifier U2 through resistance R1, and another road connects with the in-phase input end of amplifier U3 through resistance R4; The inverting input of amplifier U3 is through resistance R6 ground connection, and the output terminal of amplifier U3 divides two-way, and a road connects with the inverting input of amplifier U3 through resistance R10, and another road connects with the inverting input of amplifier U4 through resistance R5; The in-phase input end of amplifier U4 is through resistance R7 ground connection, the output terminal of amplifier U4 divides three tunnels, one tunnel connects with the inverting input of amplifier U4 through resistance R2, and another road connects with the inverting input of amplifier U5 through thermistor R34, and the 3rd tunnel connects with transducer (5); The in-phase input end of amplifier U5 is through resistance R11 ground connection, and the output terminal of amplifier U5 connects with one end of resistance R16, and the other end of resistance R16 divides two-way, and a road connects with the in-phase input end of amplifier U2, and another road connects with the inverting input of amplifier U5 through resistance R18.
2. according to a kind of ultrasound wave firm power output control circuit according to claim 1, it is characterized in that: described current rectifying and wave filtering circuit (1) comprises rectifier bridge D1 and amplifier U1, the positive direct-current output terminal of described rectifier bridge D1 divides two-way, one tunnel connects with one end of electric capacity C5, and another road connects with the inverting input of amplifier U1 through resistance R13 and resistance R14; The negative DC output end of rectifier bridge D1 divides two-way, and a road connects with the other end of electric capacity C5, another road ground connection; The link of the inverting input of resistance R14 and amplifier U1 is through electric capacity C2 ground connection, and the output terminal of amplifier U1 divides two-way, and a road connects with the link of resistance R13 and resistance R14 through electric capacity C1, and another road is through resistance R8 and resistance R9 ground connection; The link of resistance R8 and resistance R9 connects with the in-phase input end of amplifier U1.
3. according to a kind of ultrasound wave firm power output control circuit according to claim 2, it is characterized in that: the full-bridge circuit that described inverter circuit (2) forms for MOSFET pipe Q1, MOSFET pipe Q2, MOSFET pipe Q3 and MOSFET pipe Q4, the drain electrode of described MOSFET pipe Q1 and the drain electrode of MOSFET pipe Q2 all connect with the output terminal of amplifier U1, the drain electrode of MOSFET pipe Q3 and the equal ground connection of drain electrode of MOSFET pipe Q4.
4. according to a kind of ultrasound wave firm power output control circuit according to claim 3, it is characterized in that: described modulation circuit (9) comprises triode Q5 and triode Q6, the emitter of described triode Q5 divides three tunnels, one tunnel connects with the base stage of triode Q5 through diode D2, another road connects with the grid of MOSFET pipe Q1 through resistance R17, and the 3rd tunnel connects with the grid of MOSFET pipe Q4 through resistance R19; The base stage of triode Q5 divides two-way, and a road connects with microcontroller (8), and another road connects with the collector of triode Q5 through resistance R21; The grounded collector of triode Q5, the emitter of triode Q6 divides three tunnels, and a road connects with the base stage of triode Q6 through diode D3, and another road connects with the grid of MOSFET pipe Q2 through resistance R15, and the 3rd tunnel connects with the grid of MOSFET pipe Q3 through resistance R20; The base stage of triode Q6 divides two-way, and a road connects with microcontroller (8), and another road connects with the collector of triode Q6 through resistance R25; The grounded collector of triode Q6.
5. according to a kind of ultrasound wave firm power output control circuit according to claim 3, it is characterized in that: described match circuit (3) comprises transformer T1, the one end on the former limit of described transformer T1 connects with an output terminal of full-bridge circuit through inductance L 2 and resistance R12, the other end on the former limit of transformer T1 connects with another output terminal of full-bridge circuit, one end of the secondary of transformer T1 connects through the other end of inductance L 1 with resistance R3, the other end ground connection of the secondary of transformer T1.
6. according to a kind of ultrasound wave firm power output control circuit according to claim 1, it is characterized in that: described current sampling circuit (6) comprises amplifier U6, the in-phase input end of described amplifier U6 connects with the negative electrode of diode D4, the anode of diode D4 connects with the output terminal of amplifier U4, the output terminal of amplifier U4 divides three tunnels, one tunnel connects with 12V power output end through resistance R23, another road connects with the link of one end of electric capacity C6 and the negative electrode of diode D5 through resistance R26, and the 3rd tunnel connects with microcontroller (8); The link of the other end of electric capacity C6 and the anode of diode D5 connects with the inverting input of amplifier U6 through resistance R24.
7. according to a kind of ultrasound wave firm power output control circuit according to claim 1, it is characterized in that: described voltage sampling circuit (7) comprises amplifier U7 and photo-coupler FODM452, the in-phase input end of described amplifier U7 is through resistance R30, electric capacity C7 in parallel and diode D6, and resistance R27 connects with 12V power output end, the inverting input of amplifier U7 connects with the output terminal of amplifier U4 through resistance R33 and resistance R32, the output terminal of amplifier U7 connects with the 1st pin of photo-coupler FODM452 through resistance R31, 3rd pin of photo-coupler FODM452 and the equal ground connection of the 4th pin, 5th pin of photo-coupler FODM452 connects with microcontroller (8), 6th pin of photo-coupler FODM452 connects with 12V power output end through resistance R29.
8., according to a kind of ultrasound wave firm power output control circuit according to claim 1, it is characterized in that: described microcontroller (8) comprises MSP430F449 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637955.8U CN204856138U (en) | 2015-08-21 | 2015-08-21 | Invariable power output control circuit of ultrasonic wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637955.8U CN204856138U (en) | 2015-08-21 | 2015-08-21 | Invariable power output control circuit of ultrasonic wave |
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| CN204856138U true CN204856138U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520637955.8U Expired - Fee Related CN204856138U (en) | 2015-08-21 | 2015-08-21 | Invariable power output control circuit of ultrasonic wave |
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| CN (1) | CN204856138U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563808A (en) * | 2016-03-04 | 2016-05-11 | 珠海灵科自动化科技有限公司 | Control system of ultrasonic welding machine |
| CN106292481A (en) * | 2016-11-14 | 2017-01-04 | 济南辉腾机电设备有限公司 | The multi-frequency ultrasonic power supply of a kind of touch control and control method thereof |
| CN108736557A (en) * | 2017-04-13 | 2018-11-02 | 苏州绿恺动力电子科技有限公司 | Electrical equipment and its power control device and Poewr control method |
| CN108988681A (en) * | 2018-06-13 | 2018-12-11 | 广州汇专工具有限公司 | Ultrasonic transducer output control circuit |
| CN109745635A (en) * | 2019-02-18 | 2019-05-14 | 河南中医药大学 | Ultrasonic signal processing unit |
| CN109908499A (en) * | 2019-02-18 | 2019-06-21 | 河南中医药大学 | Supersonic therapeutic system |
| CN112462653A (en) * | 2020-11-18 | 2021-03-09 | 上海大学 | Parallel general ultrasonic driving device |
| CN112994805A (en) * | 2019-12-12 | 2021-06-18 | 北京铁路信号有限公司 | Power detection feedback circuit and antenna equipment system |
-
2015
- 2015-08-21 CN CN201520637955.8U patent/CN204856138U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563808A (en) * | 2016-03-04 | 2016-05-11 | 珠海灵科自动化科技有限公司 | Control system of ultrasonic welding machine |
| CN106292481A (en) * | 2016-11-14 | 2017-01-04 | 济南辉腾机电设备有限公司 | The multi-frequency ultrasonic power supply of a kind of touch control and control method thereof |
| CN106292481B (en) * | 2016-11-14 | 2019-05-24 | 济南长川数控设备有限公司 | A kind of the multi-frequency ultrasonic power supply and its control method of touch control |
| CN108736557A (en) * | 2017-04-13 | 2018-11-02 | 苏州绿恺动力电子科技有限公司 | Electrical equipment and its power control device and Poewr control method |
| CN108988681A (en) * | 2018-06-13 | 2018-12-11 | 广州汇专工具有限公司 | Ultrasonic transducer output control circuit |
| CN109745635A (en) * | 2019-02-18 | 2019-05-14 | 河南中医药大学 | Ultrasonic signal processing unit |
| CN109908499A (en) * | 2019-02-18 | 2019-06-21 | 河南中医药大学 | Supersonic therapeutic system |
| CN112994805A (en) * | 2019-12-12 | 2021-06-18 | 北京铁路信号有限公司 | Power detection feedback circuit and antenna equipment system |
| CN112994805B (en) * | 2019-12-12 | 2022-08-23 | 北京铁路信号有限公司 | Power detection feedback circuit and antenna equipment system |
| CN112462653A (en) * | 2020-11-18 | 2021-03-09 | 上海大学 | Parallel general ultrasonic driving device |
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