CN209627267U - A kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument - Google Patents
A kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument Download PDFInfo
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- CN209627267U CN209627267U CN201920310519.8U CN201920310519U CN209627267U CN 209627267 U CN209627267 U CN 209627267U CN 201920310519 U CN201920310519 U CN 201920310519U CN 209627267 U CN209627267 U CN 209627267U
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Abstract
A kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument, including power supply module and power frequency inverter circuit, power frequency inverter circuit includes programmable SPWM controller, exclusive circuit, DC-DC voltage reducing type voltage stabilizing circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit and power frequency boosting and filter circuit, power supply module respectively with DC-DC voltage reducing type voltage stabilizing circuit, metal-oxide-semiconductor driving circuit and H-bridge circuit electrical connection, DC-DC voltage reducing type voltage stabilizing circuit respectively with programmable SPWM controller U1, exclusive circuit and the electrical connection of metal-oxide-semiconductor driving circuit, programmable SPWM controller U1 is electrically connected with metal-oxide-semiconductor driving circuit and exclusive circuit respectively, exclusive circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit, power frequency boosting and filter circuit are sequentially connected electrically.Its advantage are as follows: at low cost by the way of power frequency inversion boosting, the electromagnetic radiation energy that inversion generates is low, and the electrostatic energy that high pressure generates, which directly passes through resistance, to carry out being released to the earth or communication power supply, prevents the electronic components such as electrostatic damage chip.
Description
Technical field
The utility model relates to high electrograph therapy instrument technical fields, and in particular to a kind of dedicated exchange of high electrograph therapy instrument
Voltage regulator circuit.
Background technique
Current potential therapy is to be generated using high electrograph therapy instrument (potential therapeutic instrument is also static electric field therapeutic instrument) by electrode
High-voltage alternating electric field acts on a kind of method of human disease treatment.Current potential therapy was used to control in 1745 by Jallabert etc.
Treat nerves and muscles in terms of disease, but due to the limitation of technical conditions and use environment (it is such as dust-proof, it is moisture-proof, insulation etc.),
Clinical application is less, and as clinical test proves, current potential therapy is to insomnia, hypertension, cerebral apoplexy, coronary heart disease, diabetes, obesity
Disease has significant curative effect, and with the continuous development of science and technology, and the technology of potential therapeutic instrument is greatly improved, raw
The instrument of production is smaller and smaller, increasingly gentlier, operates very simple.Therefore high electrograph therapy instrument has become a kind of universal, family
The physical therapy apparatus that front yard can be used.But the instrument is in some areas or country in use, indoor or neighbours have electricity consumption big
Power apparatus when, outdoor power supply line head or nearby have factory etc., caused mains voltage is unstable, and work occurs in instrument
Abnormal or damage phenomenon reduces expected therapeutic effect (output treatment voltage fluctuation is big)；And it is not portable on the market at present
Formula can be moved into the outdoor high electrograph therapy instrument treated, and existing potential therapeutic instrument can only be in family, hospital or clinic etc.
Fixed-site uses, and when patient feedback treats such as an independent personal use, the situation for having worry, constraining are carried to open air, seek
The comfortable open or lively environment of a peace and quiet is looked for carry out using being always the pursuit of client.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of dedicated AC voltage-stabilizing electricity of high electrograph therapy instrument
Road solves high electrograph therapy instrument in the prior art in actual use, because of power supply spread of voltage, is easy to cause work
Abnormal or damage phenomenon the problem of reduce expected therapeutic effect and cannot be moved to the problem of outdoor is treated.
Technical solution adopted by the utility model: a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument, including supply
Power supply module and power frequency inverter circuit, the power frequency inverter circuit include programmable SPWM controller, locking electricity
Road, DC-DC voltage reducing type voltage stabilizing circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit and power frequency boosting and filter circuit, the power supply
Module is electrically connected with DC-DC voltage reducing type voltage stabilizing circuit, metal-oxide-semiconductor driving circuit and H-bridge circuit respectively, and the DC-DC buck is steady
Volt circuit is electrically connected with programmable SPWM controller U1, exclusive circuit and metal-oxide-semiconductor driving circuit respectively, the programmable SPWM control
Device U1 processed is electrically connected with metal-oxide-semiconductor driving circuit and exclusive circuit respectively, the exclusive circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit,
Power frequency boosting and filter circuit are sequentially connected electrically.
The programmable SPWM controller U1 has been electrically connected 12MHz crystal oscillating circuit and power indicating circuit.
The metal-oxide-semiconductor driving circuit includes metal-oxide-semiconductor driver U2, and exclusive circuit includes triode Q3, resistance R32, resistance
The programmable SPWM controller U1's of emitter electrical connection of R33, triode Q2, resistance R30 and resistance R31, the triode Q3
The end SPWMOUT4, the base stage of triode Q3 are electrically connected the end SPWMOUT3 of programmable SPWM controller U1, three poles by resistance R32
The end LIN of the collector electrical connection metal-oxide-semiconductor driver U2 of pipe Q3, the collector of triode Q3 pass through resistance R33 electric connection of power supply
The end circuit GND, the emitter of the triode Q2 are electrically connected the end SPWMOUT3 of programmable SPWM controller U1, triode Q2's
Base stage is electrically connected the end SPWMOUT4 of programmable SPWM controller U1 by resistance R30, and the collector of triode Q2 is electrically connected MOS
The collector at the end HIN of pipe driver U2, triode Q2 passes through the end resistance R31 electric connection of power supply circuit GND.
The DC-DC voltage reducing type voltage stabilizing circuit includes switching power source chip QW1, the IN in the switching power source chip QW1
End is connected with one end of capacitor CW2 in parallel, capacitor CW3 and capacitor CW11, and capacitor CW2, capacitor CW3 and capacitor CW11's is another
The end GND in connection switch power supply chip QW1 is held, the one end capacitor CW2 is connected with+12V input voltage, switching power source chip QW1
In OUT terminal be sequentially connected in series inductance LW2 ,+5V input voltage and capacitor CM14, and be connected with inductance LW2, capacitor CM14 simultaneously
The end FB is connected between inductance LW2 and capacitor CM14 in the diode DW1 of connection, switching power source chip QW1, switching power source chip
The capacitor CW1 in parallel with capacitor CM14, the switching power source chip are equipped between the end ON/OFF and+5V input voltage in QW1
The end ON/OFF in QW1 is connect with the end GND in switching power source chip QW1, and is connected to the end power circuit GND.
The metal-oxide-semiconductor driving circuit is floated bootstrapping metal-oxide-semiconductor driving circuit comprising metal-oxide-semiconductor driver U2 and metal-oxide-semiconductor
The end LIN and the end HIN of driver U3, the metal-oxide-semiconductor driver U2 are connected to exclusive circuit, and the vdd terminal of metal-oxide-semiconductor driver U2 connects
It is connected to capacitor C5 and the both ends capacitor C6, the capacitor C6 in parallel and is connected separately with the end power circuit GND and+5V input voltage,
Diode D2 is connected between the end VB and the end VCC of metal-oxide-semiconductor driver U2, between the end VCC and the end COM of metal-oxide-semiconductor driver U2
It is connected with capacitor C3 and the both ends capacitor C4, the capacitor C4 in parallel and is connected separately with the end power circuit GND and+12V input electricity
Pressure, the end VB of metal-oxide-semiconductor driver U2 is connected to H-bridge circuit, the end HO, the end VS and the end LO of metal-oxide-semiconductor driver U2 by capacitor C2
It is connected to H-bridge circuit；The end LIN and the end HIN of the metal-oxide-semiconductor driver U3 is separately connected programmable SPWM controller U1's
The end SPWMOUT2 and the end SPWMOUT1, the vdd terminal of metal-oxide-semiconductor driver U3 is connected in parallel capacitor C13 and capacitor C14, described
The both ends capacitor C14 are connected separately with the end power circuit GND and+5V input voltage, the end VB and the end VCC of metal-oxide-semiconductor driver U3 it
Between be connected with diode D3, in parallel capacitor C11 and capacitor C12 are connected between the end VCC and the end COM of metal-oxide-semiconductor driver U2,
The both ends the capacitor C12 are connected separately with the end power circuit GND and+12V input voltage, and the end VB of metal-oxide-semiconductor driver U3 passes through
Capacitor C8 is connected to H-bridge circuit, and the end HO, the end VS and the end LO of metal-oxide-semiconductor driver U3 is connected to H-bridge circuit.
The H-bridge circuit includes that metal-oxide-semiconductor V1, metal-oxide-semiconductor V2, metal-oxide-semiconductor V3 and metal-oxide-semiconductor V4, the metal-oxide-semiconductor V1 gate terminal pass through
It is connected to metal-oxide-semiconductor driving circuit after diode D4 and resistance R11 in parallel, metal-oxide-semiconductor V1 gate terminal is connected to by resistance R13
Metal-oxide-semiconductor V1 source terminal, the source terminal of metal-oxide-semiconductor V1 are connected to the drain electrode end of metal-oxide-semiconductor V3, and the drain electrode end of metal-oxide-semiconductor V1 is connected to metal-oxide-semiconductor
The drain electrode end and connection+12V input voltage of V2；The metal-oxide-semiconductor V3 gate terminal after diode D6 and resistance R15 in parallel by connecting
It is connected to metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor V3 gate terminal is connected to metal-oxide-semiconductor V3 source terminal, the source terminal of metal-oxide-semiconductor V3 by resistance R17
It is connected to the source terminal of metal-oxide-semiconductor V4 and connects the end power circuit GND；The metal-oxide-semiconductor V2 gate terminal passes through diode D5 in parallel
With metal-oxide-semiconductor driving circuit is connected to after resistance R12, metal-oxide-semiconductor V2 gate terminal is connected to metal-oxide-semiconductor V2 source terminal by resistance R14,
The source terminal of metal-oxide-semiconductor V2 is connected to the drain electrode end of metal-oxide-semiconductor V4；The metal-oxide-semiconductor V4 gate terminal passes through diode D7 and electricity in parallel
It is connected to metal-oxide-semiconductor driving circuit after resistance R16, metal-oxide-semiconductor V4 gate terminal is connected to metal-oxide-semiconductor V4 source terminal by resistance R18；It is described
Between the source terminal of metal-oxide-semiconductor V2 and the drain electrode end of metal-oxide-semiconductor V4 connect power frequency boosting and filter circuit, the source terminal of metal-oxide-semiconductor V1 with
Power frequency boosting and filter circuit are connected between the drain electrode end of metal-oxide-semiconductor V3.
The power frequency boosting and filter circuit include Industrial Frequency Transformer T1, the primary coil connection of the Industrial Frequency Transformer T1
H-bridge circuit, the anode in the secondary coil of Industrial Frequency Transformer T1 connect circuit output end JP1's after inductance L1 and inductance L2
Stitch 1, the stitch 3 of cathode circuit output end JP1 after inductance L3 and inductance L4 in the secondary coil of Industrial Frequency Transformer T1,
Capacitor C24, circuit output end JP1 are parallel between the stitch 1 of the circuit output end JP1 and the stitch 3 of circuit output end JP1
Stitch 3 phase line/zero curve of network source P1 is connected to by resistance R1, the stitch 3 of circuit output end JP1 is connected by resistance R2
To the end device housings PE.
The power supply module is switching power circuit or battery
The utility model has the beneficial effects that one, traditional high electrograph therapy instrument can only be fixed and be used at home, family cannot be taken to
It is outer to carry out using it is the mode exchanged that the mode of script Alternating Current Power Supply, which is designed as DC inversion, and it is i.e. removable only to carry battery
Move arbitrary site carry out using；Two, the mode of power frequency inversion boosting is at low cost, and failure rate is low, the electromagnetic radiation that inversion generates
Energy is low, and the electrostatic energy that high pressure generates, which directly passes through resistance, to carry out being released to the earth or communication power supply, prevents electrostatic damage
The electronic components such as chip；Three, primary modulating pulse wave can be obstructed using Industrial Frequency Transformer to transmit to secondary, reduce electromagnetic interference
Energy launches outward；Four, SPWM modulating wave uses exclusive circuit mode, and preventing the metal-oxide-semiconductor of H bridge from misleading causes to burn metal-oxide-semiconductor.
Detailed description of the invention
Fig. 1 is that a kind of overall structure of the dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment is illustrated
Figure；
Fig. 2 is that may be programmed SPWM control in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
The circuit diagram of device processed；
Fig. 3 is the electricity of exclusive circuit in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
Lu Tu；
Fig. 4 is DC-DC buck in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
The circuit diagram of voltage regulator circuit；
Fig. 5 is metal-oxide-semiconductor driving electricity in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
The circuit diagram on road；
Fig. 6 is the electricity of H-bridge circuit in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
Lu Tu；
Fig. 7 is power frequency boosting and filter in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
The circuit diagram of wave circuit；
Fig. 8 is switching power circuit in a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument of the utility model embodiment
Overall structure diagram.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown in figures 1-8, the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument, including power supply module and power frequency
Inverter power circuit, the power frequency inverter circuit are steady including programmable SPWM controller, exclusive circuit, DC-DC buck
Volt circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit and power frequency boosting and filter circuit, the power supply module respectively with DC-DC
Voltage reducing type voltage stabilizing circuit, metal-oxide-semiconductor driving circuit and H-bridge circuit electrical connection, the DC-DC voltage reducing type voltage stabilizing circuit respectively with can compile
Journey SPWM controller U1, exclusive circuit and metal-oxide-semiconductor driving circuit electrical connection, the programmable SPWM controller U1 respectively with MOS
Tube drive circuit and exclusive circuit electrical connection, the exclusive circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit, power frequency boosting and filtering
Circuit is sequentially connected electrically, and the mode of script Alternating Current Power Supply is designed as the mode that DC inversion is exchange, only need to carry battery i.e.
It can be moved into arbitrary site to carry out using improving the practicability of high electrograph therapy instrument；Further, the power supply module is
Switching power circuit or battery, the switching power circuit are existing, mature, efficient direct current power supply mode, can be effectively steady
Determine direct current supply voltage, provide stabilized power supply for rear class inverter power circuit, solves high electrograph therapy instrument because of power-supply fluctuation, lead
The problem of causing product operation irregularity or damage；Further, the switching power circuit is installed close to power outlet or is individually sealed
Dress is external power supply module or built-in switched power circuit, and switch power supply routes input voltage filter circuit, rectification and surge
Absorbing circuit, PWM controller, Voltage Feedback control loop, electronic feedback control loop, pulse driving circuit, interference absorb electricity
Totally 10 parts form for road, auxiliary power circuit, pulse transformer and output rectifier and filter, and output direct current gives high potential respectively
The master control display board of therapeutic equipment is powered and is powered to the power supply of power frequency inverter circuit.
Preferably, the programmable SPWM controller U1 has been electrically connected 12MHz crystal oscillating circuit and power supply
Indicating circuit.
Preferably, exclusive circuit includes as shown in figure 3, the metal-oxide-semiconductor driving circuit includes metal-oxide-semiconductor driver U2
The emitter electrical connection of triode Q3, resistance R32, resistance R33, triode Q2, resistance R30 and resistance R31, the triode Q3
The base stage at the end SPWMOUT4 of programmable SPWM controller U1, triode Q3 is electrically connected programmable SPWM control by resistance R32
The end SPWMOUT3 of device U1, the end LIN of the collector electrical connection metal-oxide-semiconductor driver U2 of triode Q3, the collector of triode Q3
By the end resistance R33 electric connection of power supply circuit GND, the emitter of the triode Q2 is electrically connected programmable SPWM controller U1's
The end SPWMOUT3, the base stage of triode Q2 are electrically connected the end SPWMOUT4 of programmable SPWM controller U1, three poles by resistance R30
The end HIN of the collector electrical connection metal-oxide-semiconductor driver U2 of pipe Q2, the collector of triode Q2 pass through resistance R31 electric connection of power supply
The end circuit GND；SPWM modulating wave uses exclusive circuit mode, and preventing the metal-oxide-semiconductor of H bridge from misleading causes to burn metal-oxide-semiconductor.
Preferably, as shown in figure 4, the DC-DC voltage reducing type voltage stabilizing circuit includes switching power source chip QW1, it is described
The end IN in switching power source chip QW1 is connected with one end of capacitor CW2 in parallel, capacitor CW3 and capacitor CW11, capacitor CW2, electricity
Hold the end GND in the other end connection switch power supply chip QW1 of CW3 and capacitor CW11, the one end capacitor CW2 is connected with+12V input
Voltage, the OUT terminal in switching power source chip QW1 has been sequentially connected in series inductance LW2 ,+5V input voltage and capacitor CM14, and is connected with
The end FB is connected to inductance LW2 and capacitor in the diode DW1 in parallel with inductance LW2, capacitor CM14, switching power source chip QW1
Between CM14, the capacitor in parallel with capacitor CM14 is equipped between the end ON/OFF and+5V input voltage in switching power source chip QW1
The end ON/OFF in CW1, the switching power source chip QW1 is connect with the end GND in switching power source chip QW1, and is connected to electricity
The end source circuit GND；Using DC-DC voltage reducing type voltage stabilizing circuit, work efficiency is high, small in size, low in energy consumption, at low cost.
Preferably, as shown in figure 5, the metal-oxide-semiconductor driving circuit is floated bootstrapping metal-oxide-semiconductor driving circuit, packet
The end LIN and the end HIN for including metal-oxide-semiconductor driver U2 and metal-oxide-semiconductor driver U3, the metal-oxide-semiconductor driver U2 are connected to exclusive circuit,
The vdd terminal of metal-oxide-semiconductor driver U2 is connected with capacitor C5 and the both ends capacitor C6, the capacitor C6 in parallel and is connected separately with power supply electricity
The road end GND and+5V input voltage, are connected with diode D2, metal-oxide-semiconductor driver between the end VB and the end VCC of metal-oxide-semiconductor driver U2
It is connected with capacitor C3 and the both ends capacitor C4, the capacitor C4 in parallel between the end VCC and the end COM of U2 and is connected separately with power supply electricity
The road end GND and+12V input voltage, the end VB of metal-oxide-semiconductor driver U2 is connected to H-bridge circuit, metal-oxide-semiconductor driver by capacitor C2
The end HO, the end VS and the end LO of U2 is connected to H-bridge circuit, metal-oxide-semiconductor driver U2 using external one bootstrapping for electric diode D2 and
One bootstrapping storage capacitor C2 is automatically performed Bootstrap function, exports between high level, the end HO output low period at the end LO, electricity
Hold C2 and be charged to enough voltages (+12V), when HO exports high level, the end LO output low level, the voltage on capacitor C2 will
Power supply of the equivalent voltage source as inner drive VB and VS, completes the driving of high-end N-channel MOS pipe；The metal-oxide-semiconductor
The end LIN and the end HIN of driver U3 is separately connected the end SPWMOUT2 and the end SPWMOUT1 of programmable SPWM controller U1, MOS
The vdd terminal of pipe driver U3 is connected with capacitor C13 and the both ends capacitor C14, the capacitor C14 in parallel and is connected separately with power supply electricity
The road end GND and+5V input voltage, are connected with diode D3, metal-oxide-semiconductor driver between the end VB and the end VCC of metal-oxide-semiconductor driver U3
It is connected with capacitor C11 and the both ends capacitor C12, the capacitor C12 in parallel between the end VCC and the end COM of U2 and is connected separately with electricity
The end VB of the end source circuit GND and+12V input voltage, metal-oxide-semiconductor driver U3 is connected to H-bridge circuit by capacitor C8, and metal-oxide-semiconductor drives
The end HO, the end VS and the end LO of dynamic device U3 is connected to H-bridge circuit, and metal-oxide-semiconductor driver U3 is using external one bootstrapping for electric diode
D3 and bootstrapping storage capacitor C8 is automatically performed Bootstrap function, exports high level, the end HO output low period at the end LO
Between, capacitor C8 has been charged to enough voltages (+12V), when HO exports high level, the end LO output low level, on capacitor C8
Voltage completes the driving of high-end N-channel MOS pipe using an equivalent voltage source as the power supply of inner drive VB and VS, should
Circuit uses the method isolation drive metal-oxide-semiconductor of floating power circuit, realizes the function of low pressure isolation drive high pressure.
Preferably, as shown in fig. 6, the H-bridge circuit includes metal-oxide-semiconductor V1, metal-oxide-semiconductor V2, metal-oxide-semiconductor V3 and metal-oxide-semiconductor V4,
The metal-oxide-semiconductor V1 gate terminal is by being connected to metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor V1 grid after diode D4 and resistance R11 in parallel
End is connected to metal-oxide-semiconductor V1 source terminal by resistance R13, and the source terminal of metal-oxide-semiconductor V1 is connected to the drain electrode end of metal-oxide-semiconductor V3, metal-oxide-semiconductor V1
Drain electrode end be connected to the drain electrode end and connection+12V input voltage of metal-oxide-semiconductor V2；The metal-oxide-semiconductor V3 gate terminal passes through in parallel two
Metal-oxide-semiconductor driving circuit is connected to after pole pipe D6 and resistance R15, metal-oxide-semiconductor V3 gate terminal is connected to the source metal-oxide-semiconductor V3 by resistance R17
Extremely, the source terminal of metal-oxide-semiconductor V3 is connected to the source terminal of metal-oxide-semiconductor V4 and connects the end power circuit GND；The metal-oxide-semiconductor V2 grid
By being connected to metal-oxide-semiconductor driving circuit after diode D5 and resistance R12 in parallel, metal-oxide-semiconductor V2 gate terminal is connected by resistance R14 at end
It is connected to metal-oxide-semiconductor V2 source terminal, the source terminal of metal-oxide-semiconductor V2 is connected to the drain electrode end of metal-oxide-semiconductor V4；The metal-oxide-semiconductor V4 gate terminal passes through
It is connected to metal-oxide-semiconductor driving circuit after diode D7 and resistance R16 in parallel, metal-oxide-semiconductor V4 gate terminal is connected to by resistance R18
Metal-oxide-semiconductor V4 source terminal；Power frequency boosting and filter circuit are connected between the source terminal of the metal-oxide-semiconductor V2 and the drain electrode end of metal-oxide-semiconductor V4,
Power frequency boosting and filter circuit are connected between the source terminal of metal-oxide-semiconductor V1 and the drain electrode end of metal-oxide-semiconductor V3, which is equipped with fast extensive
Multiple diode D4(1N4148), fast recovery diode D5, fast recovery diode D6, fast recovery diode D7, can quick closedown MOS
Pipe prevents metal-oxide-semiconductor turn-off time length from heating burnout, or upper and lower bridge being caused to mislead and burn metal-oxide-semiconductor.
Preferably, as shown in fig. 7, power frequency boosting and filter circuit include Industrial Frequency Transformer T1, the power frequency
The primary coil of transformer T1 connects H-bridge circuit, and the anode in the secondary coil of Industrial Frequency Transformer T1 passes through inductance L1 and inductance
The stitch 1 of circuit output end JP1 is connected after L2, the cathode in the secondary coil of Industrial Frequency Transformer T1 passes through inductance L3 and inductance L4
The stitch 3 of circuit output end JP1 afterwards, it is in parallel between the stitch 1 of the circuit output end JP1 and the stitch 3 of circuit output end JP1
There is capacitor C24, the stitch 3 of circuit output end JP1 is connected to phase line/zero curve of network source P1, circuit output end by resistance R1
The stitch 3 of JP1 is connected to the end device housings PE, power frequency boosting and filter circuit by resistance R2, is a kind of suitable for high potential
When solving to be powered with common inversion pressure stabilizing AC power source to instrument, it is defeated such as to start negative potential for the inversion power supply mode of therapeutic equipment
When out, the problem of inverter is burnt at once, can obstruct primary modulating pulse wave using Industrial Frequency Transformer and transmit to secondary, can subtract
Few electromagnetic interference energy launches outward.
The present embodiment the utility model has the advantages that one, traditional high electrograph therapy instrument can only be fixed and be used at home, open air cannot be taken to
It carries out using it is the mode exchanged that the mode of script Alternating Current Power Supply, which is designed as DC inversion, and it is i.e. removable need to only to carry battery
To arbitrary site carry out using；Two, the mode of power frequency inversion boosting is at low cost, and failure rate is low, the electromagnetic radiation energy that inversion generates
Measure low, the electrostatic energy that high pressure generates directly passes through resistance and be released to the earth or communication power supply, prevents electrostatic damage core
The electronic components such as piece；Three, primary modulating pulse wave can be obstructed using Industrial Frequency Transformer to transmit to secondary, reduce electromagnetic interference energy
Amount launches outward；Four, SPWM modulating wave uses exclusive circuit mode, and preventing the metal-oxide-semiconductor of H bridge from misleading causes to burn metal-oxide-semiconductor.
Embodiment is not construed as the limitation to utility model, but any spiritual improvements introduced based on the utility model,
It should all be within the protection scope of the utility model.
Claims (8)
1. a kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument, it is characterised in that: inverse including power supply module and power frequency
Power transformation source circuit, the power frequency inverter circuit include programmable SPWM controller, exclusive circuit, DC-DC buck pressure stabilizing
Circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit and power frequency boosting and filter circuit, the power supply module are dropped with DC-DC respectively
Pressure type voltage regulator circuit, metal-oxide-semiconductor driving circuit and H-bridge circuit electrical connection, the DC-DC voltage reducing type voltage stabilizing circuit respectively with it is programmable
SPWM controller U1, exclusive circuit and metal-oxide-semiconductor driving circuit electrical connection, the programmable SPWM controller U1 respectively with metal-oxide-semiconductor
Driving circuit and exclusive circuit electrical connection, the exclusive circuit, metal-oxide-semiconductor driving circuit, H-bridge circuit, power frequency boosting and filtered electrical
Road is sequentially connected electrically.
2. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: it is described can
Programming SPWM controller U1 has been electrically connected 12MHz crystal oscillating circuit and power indicating circuit.
3. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: described
Metal-oxide-semiconductor driving circuit includes metal-oxide-semiconductor driver U2, exclusive circuit include triode Q3, resistance R32, resistance R33, triode Q2,
The end SPWMOUT4 of the programmable SPWM controller U1 of the emitter of resistance R30 and resistance R31, the triode Q3 electrical connection, three
The base stage of pole pipe Q3 is electrically connected the end SPWMOUT3 of programmable SPWM controller U1, the collector of triode Q3 by resistance R32
It is electrically connected the end LIN of metal-oxide-semiconductor driver U2, the collector of triode Q3 passes through the end resistance R33 electric connection of power supply circuit GND, institute
The emitter for stating triode Q2 is electrically connected the end SPWMOUT3 of programmable SPWM controller U1, and the base stage of triode Q2 passes through resistance
R30 is electrically connected the end SPWMOUT4 of programmable SPWM controller U1, the collector electrical connection metal-oxide-semiconductor driver U2's of triode Q2
The collector at the end HIN, triode Q2 passes through the end resistance R31 electric connection of power supply circuit GND.
4. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: described
DC-DC voltage reducing type voltage stabilizing circuit includes switching power source chip QW1, and the end IN in the switching power source chip QW1 is connected with parallel connection
Capacitor CW2, capacitor CW3 and capacitor CW11 one end, the other end connection switch electricity of capacitor CW2, capacitor CW3 and capacitor CW11
The end GND in source chip QW1, the one end capacitor CW2 are connected with+12V input voltage, and the OUT terminal in switching power source chip QW1 is successively
It is in series with inductance LW2 ,+5V input voltage and capacitor CM14, and is connected with the diode in parallel with inductance LW2, capacitor CM14
The end FB is connected between inductance LW2 and capacitor CM14 in DW1, switching power source chip QW1, the ON/ in switching power source chip QW1
The ON/ being equipped between the end OFF and+5V input voltage in the capacitor CW1, the switching power source chip QW1 in parallel with capacitor CM14
The end OFF is connect with the end GND in switching power source chip QW1, and is connected to the end power circuit GND.
5. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: described
Metal-oxide-semiconductor driving circuit is floated bootstrapping metal-oxide-semiconductor driving circuit comprising metal-oxide-semiconductor driver U2 and metal-oxide-semiconductor driver U3, institute
The end LIN and the end HIN for stating metal-oxide-semiconductor driver U2 are connected to exclusive circuit, and the vdd terminal of metal-oxide-semiconductor driver U2 is connected in parallel
Capacitor C5 and the both ends capacitor C6, the capacitor C6 are connected separately with the end power circuit GND and+5V input voltage, metal-oxide-semiconductor driver
It is connected with diode D2 between the end VB and the end VCC of U2, parallel connection is connected between the end VCC and the end COM of metal-oxide-semiconductor driver U2
Capacitor C3 and the both ends capacitor C4, the capacitor C4 are connected separately with the end power circuit GND and+12V input voltage, metal-oxide-semiconductor driving
The end VB of device U2 is connected to H-bridge circuit by capacitor C2, and the end HO, the end VS and the end LO of metal-oxide-semiconductor driver U2 is connected to H bridge electricity
Road；The end LIN and the end HIN of the metal-oxide-semiconductor driver U3 be separately connected programmable SPWM controller U1 the end SPWMOUT2 and
The end SPWMOUT1, the vdd terminal of metal-oxide-semiconductor driver U3 are connected with capacitor C13 and capacitor C14 in parallel, the both ends the capacitor C14 point
It is not connected with the end power circuit GND and+5V input voltage, is connected with diode between the end VB and the end VCC of metal-oxide-semiconductor driver U3
Capacitor C11 and capacitor C12, the capacitor C12 two in parallel are connected between the end VCC and the end COM of D3, metal-oxide-semiconductor driver U2
End is connected separately with the end power circuit GND and+12V input voltage, and the end VB of metal-oxide-semiconductor driver U3 is connected to H by capacitor C8
Bridge circuit, the end HO, the end VS and the end LO of metal-oxide-semiconductor driver U3 are connected to H-bridge circuit.
6. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: the H
Bridge circuit includes metal-oxide-semiconductor V1, metal-oxide-semiconductor V2, metal-oxide-semiconductor V3 and metal-oxide-semiconductor V4, and the metal-oxide-semiconductor V1 gate terminal passes through diode in parallel
Metal-oxide-semiconductor driving circuit is connected to after D4 and resistance R11, metal-oxide-semiconductor V1 gate terminal is connected to metal-oxide-semiconductor V1 source terminal by resistance R13,
The source terminal of metal-oxide-semiconductor V1 is connected to the drain electrode end of metal-oxide-semiconductor V3, and the drain electrode end of metal-oxide-semiconductor V1 is connected to the drain electrode end of metal-oxide-semiconductor V2 and company
Connect+12V input voltage；The metal-oxide-semiconductor V3 gate terminal is by being connected to metal-oxide-semiconductor driving after diode D6 and resistance R15 in parallel
Circuit, metal-oxide-semiconductor V3 gate terminal are connected to metal-oxide-semiconductor V3 source terminal by resistance R17, and the source terminal of metal-oxide-semiconductor V3 is connected to metal-oxide-semiconductor V4
Source terminal and connect the end power circuit GND；The metal-oxide-semiconductor V2 gate terminal after diode D5 and resistance R12 in parallel by connecting
It is connected to metal-oxide-semiconductor driving circuit, metal-oxide-semiconductor V2 gate terminal is connected to metal-oxide-semiconductor V2 source terminal, the source terminal of metal-oxide-semiconductor V2 by resistance R14
It is connected to the drain electrode end of metal-oxide-semiconductor V4；The metal-oxide-semiconductor V4 gate terminal is by being connected to MOS after diode D7 and resistance R16 in parallel
Tube drive circuit, metal-oxide-semiconductor V4 gate terminal are connected to metal-oxide-semiconductor V4 source terminal by resistance R18；The source terminal of the metal-oxide-semiconductor V2 with
Connect power frequency boosting and filter circuit between the drain electrode end of metal-oxide-semiconductor V4, the drain electrode end of the source terminal of metal-oxide-semiconductor V1 and metal-oxide-semiconductor V3 it
Between connection power frequency boosting and filter circuit.
7. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: the work
Frequency boosting and filter circuit include Industrial Frequency Transformer T1, and the primary coil of the Industrial Frequency Transformer T1 connects H-bridge circuit, and power frequency becomes
Anode in the secondary coil of depressor T1 connects the stitch 1 of circuit output end JP1, power frequency transformation after inductance L1 and inductance L2
The stitch 3 of cathode circuit output end JP1 after inductance L3 and inductance L4 in the secondary coil of device T1, the circuit output end
Capacitor C24 is parallel between the stitch 1 of JP1 and the stitch 3 of circuit output end JP1, the stitch 3 of circuit output end JP1 passes through electricity
Resistance R1 is connected to phase line/zero curve of network source P1, and the stitch 3 of circuit output end JP1 is connected to device housings PE by resistance R2
End.
8. the dedicated AC voltage-stabilizing circuit of a kind of high electrograph therapy instrument according to claim 1, it is characterised in that: the confession
Power supply module is switching power circuit or battery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920310519.8U CN209627267U (en) | 2019-03-12 | 2019-03-12 | A kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920310519.8U CN209627267U (en) | 2019-03-12 | 2019-03-12 | A kind of dedicated AC voltage-stabilizing circuit of high electrograph therapy instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614798A (en) * | 2022-05-11 | 2022-06-10 | 河北普尼医疗科技有限公司 | Control circuit of electric field therapeutic apparatus for interfering cell division and electric field therapeutic apparatus |
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2019
- 2019-03-12 CN CN201920310519.8U patent/CN209627267U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614798A (en) * | 2022-05-11 | 2022-06-10 | 河北普尼医疗科技有限公司 | Control circuit of electric field therapeutic apparatus for interfering cell division and electric field therapeutic apparatus |
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