CN104135265A - Design method of inductive load driving circuit and circuit thereof - Google Patents
Design method of inductive load driving circuit and circuit thereof Download PDFInfo
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- CN104135265A CN104135265A CN201410385912.5A CN201410385912A CN104135265A CN 104135265 A CN104135265 A CN 104135265A CN 201410385912 A CN201410385912 A CN 201410385912A CN 104135265 A CN104135265 A CN 104135265A
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- inductive load
- drive circuit
- power amplifier
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Abstract
The invention provides a design method of an inductive load driving circuit and a circuit thereof. The method comprises the following steps: connecting a reactive element of which the reactance property is opposite to that of a load in series to a practical high-impedance loop; generating circuit resonance; and increasing a load power factor to greatly reduce a power voltage and the output voltage of the driving circuit in order to design the inductive load driving circuit with high implementation performance. The circuit comprises a power supply, a function signal generator and a driving power amplifier circuit, wherein the function signal generator is connected in series with the driving power amplifier circuit; the power supply is connected with the function signal generator and the driving power amplifier circuit respectively; the driving power amplifier circuit is connected with a capacitor; and the capacitor is connected with a load. At an output end, the power voltage and the power amplification output voltage can be reduced by adopting a series compensation capacitor or an inductor, and direct-current voltage stabilization is realized. Small-power integrated current is adopted in power amplification. The circuit has the advantages of high circuit working reliability, simple driving circuit design, convenience in manufacturing, low practical circuit manufacturing cost, and small size.
Description
Technical field
The invention belongs to electroporation field, method for designing and the circuit thereof of a kind of drive circuit for the various kinds of sensors surveying and detect of special design.
Background technology
In the design and application process of electronic circuit, often can run into various types of magnetic test coil assemblies, as the various kinds of sensors for surveying and detecting, they all belong to inductive load.This inductive load uses very extensive in electronic circuit.Thereby its drive circuit of appropriate design has positive effect, as shown in Figure 1, wherein, in the compound quantity of load Z, R is 20 Ω left and right to the circuit block diagram of conceiving by traditional design philosophy, and L is 5.4mH left and right, and load current I
0should be greater than 200mA.Function signal generator is under the distortionless condition of guarantee signal, and amplifying stage transmits signal to power amplifier, and power amplifier necessarily requires high power supply voltage, can directly drive load Ζ.
If power amplifier is selected Class B complementary symmetry circuit, supply voltage must not be lower than ± 100V.So high supply voltage, no matter to power supply itself, or power amplifier all brings a succession of more scabrous problem.
1, the voltage stabilizing circuit that high voltage power supply circuit design must adopt discrete component to form, circuit complexity, and poor reliability.2, power quality index is difficult for meeting power amplifier requirement.3, power-amplifier stage is very high to components and parts requirement used, can only adopt discrete component circuit, and the power consumption of power amplifier own is larger, and caloric value is large, easily produces nonlinear distortion; 4, output voltage is higher, requires amplifying circuit multiplication factor large, easily produces self-excitation and affects the stability of circuit working.
For the existing the problems referred to above of traditional design method, consider how to improve emphatically the power factor of output stage load Ζ, reduce supply voltage, thereby found out new departure of design high impedance Perceptual Load Drive Circuit.
Summary of the invention
The object of this invention is to provide a kind of method for designing of inductive load drive circuit, to solve the circuit complexity that existing inductive load exists, the problem of poor reliability.
For achieving the above object, the present invention is by the following technical solutions:
A kind of method for designing of inductive load drive circuit, in actual high impedance sense loop, seal in and the incompatible reactive components of load reactance, and make circuit resonance, improve the power-factor of load, thereby the output voltage of supply voltage and drive circuit is significantly reduced, design to implement the inductive load drive circuit that performance is high.
The present invention also provides a kind of inductive load drive circuit.
A kind of inductive load drive circuit, comprise power supply, function signal generator, driving power amplifier, described function signal generator and the series connection of driving power amplifier, power supply is contiguous function signal generator and driving power amplifier respectively, drive power amplifier to be connected with electric capacity, electric capacity connects load.
Described driving power amplifier is made up of power amplifier level power supply and amplifying circuit, and power amplifier level power supply is the high performance medium and small integrated amplifier of low-pressure type, and amplifying circuit is the amplifying circuit of universal integrated transporting discharging composition.
Described power amplifier level power supply is TA7241 or μ PC1185.
Described function generator is 8038 or 2206 integrated function generators.
Described capacitor C should meet C=1/ (ω
0 2l) ≈ 0.047 μ F, and resistance to operating voltage, U
c> Q
0u
0√ 2 ≈ 100V.
Described power supply is 15V DC power supply.
Described power supply also comprises power circuit, and power circuit is three proper voltage regulator circuits.
Described three proper voltage regulator circuits are TA7815.
The invention has the beneficial effects as follows: output adopts series compensation capacitance or inductance voltage capable of reducing power source and power amplifier output voltage, DC voltage-stabilizing.Power amplifier all adopts small-power integrated electric, and circuit working reliability is high, drive circuit simplicity of design, easy to make, actual fabrication circuit cost is low, volume is little.
Brief description of the drawings
Fig. 1 is traditional drive circuit block diagram;
Fig. 2 is circuit block diagram of the present invention;
Fig. 3 is the output voltage waveforms of embodiment;
Fig. 4 is the load voltage waveform of embodiment.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
At R, L, in C series circuit, if the frequency of driving source or reactive components parameter while changing, can make the reactance of electric capacity and inductance in circuit contradict each other, total reactance of circuit is zero, the total voltage in circuit and total current same-phase, now electric current is pure resistive.R, L, this operating state of C series circuit is called series resonance.
Hence one can see that, R, and L, when C series loop resonance, impedance is resistive and minimum.In the time of Impetus of Current Source, U
0minimum, the voltage swing on inductance and electric capacity equates, single spin-echo, compensation mutually, its value is U
0q doubly.According to series circuit resonance theory and characteristic, can be applicable to the design of high impedance perceptual load circuit, if seal in and the incompatible reactive components of load reactance in actual high impedance sense loop, and make circuit resonance, improve the power-factor of load, thereby the output voltage of supply voltage and drive circuit is significantly reduced, design to implement the inductive load drive circuit that performance is high.
As Fig. 2, a kind of inductive load drive circuit, comprises power supply, function signal generator, driving power amplifier, function signal generator and the series connection of driving power amplifier, power supply is contiguous function signal generator and driving power amplifier respectively, drives power amplifier to be connected with electric capacity, and electric capacity connects load.
Drive power amplifier to be made up of power amplifier level power supply and amplifying circuit, power amplifier level power supply is the high performance medium and small integrated amplifier of low-pressure type, as TA7241, and μ PC1185, amplifying circuit is the amplifying circuit of universal integrated transporting discharging composition.
Function generator is 8038 or 2206 integrated function generators.
Capacitor C should meet C=1/ (ω
0 2l) ≈ 0.047 μ F, and resistance to operating voltage, U
c> Q
0u
0√ 2 ≈ 100V.
Power supply is 15V DC power supply.
Power supply also comprises power circuit, and power circuit is three proper voltage regulator circuits, as TA7815.
embodiment 1
Taking high impedance load parameter as example, i.e. I
l>=200mA, Z
l=20+j5.4 × 10
-3ω, ω
0=2 π f
0=2 π × 10
4rad/s, designs drive circuit and the power circuit of this load.
The load providing due to this example is perception, applies series connection resonance theory and characteristic, seals in the building-out capacitor C of suitable numerical value in load circuit, forms R, L, and C series loop, and make loop f
0in=10kHz frequency, produce resonance.While meeting the required power of load or electric current, the output voltage of power amplifier level is only:
U
0=I
0R
L=0.2×20=4V
Power amplifier level can be selected the high performance medium and small integrated amplifier of low-pressure type, as TA7241, and μ PC1185 etc.Oscillating circuit is through intermediate coupling to integrated amplifier, and the latter selects the amplifying circuit being made up of universal integrated transporting discharging, and the former selects 8038 or 2206 integrated function generators.The capacitor C of going here and there in load meet C=1/ (ω
0 2l) ≈ 0.047 μ F, and resistance to operating voltage, U
c> Q
0u
0√ 2 ≈ 100V.
If integrated amplifier adopts single power supply, as from the foregoing, supply voltage should be greater than 2U
0m=2 √ 24 ≈ 11.3V, power taking source voltage U=15V, the electric current that power supply is confessed should be greater than I
0.So low voltage and little electric current, can select high performance three ends to fix integrated stable voltage circuit, as TA7815.
Designed circuit above, through assembling, debugging, uses oscilloscope YB4324 actual measurement power amplifier output voltage and load voltage waveform as Fig. 3, shown in Fig. 4.U
0m=5.64, U
lm=96V, I
0=U
z/ √ 2 Shu Z Shu ≈ 210mA.
Can find out from oscilloscope measured waveform (Fig. 4), the series loop of whole high resistance perception high power load produces series resonance.By I
0=U
z/ √ 2 Shu Z Shu are known, and loud and sonorous inductive load Z reaches rated power, and visible circuit design scheme is feasible.Under identical load Parameter Conditions, relatively characteristic and the index of two kinds of circuit, as shown in table 1.
Two kinds of drive circuit Character Comparisons of table 1
Drive circuit of the present invention is a kind of desirable as seen from Table 1, practical drive circuit.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the method for designing of an inductive load drive circuit, it is characterized in that: in actual high impedance sense loop, seal in and the incompatible reactive components of load reactance, and make circuit resonance, improve the power-factor of load, thereby the output voltage of supply voltage and drive circuit is significantly reduced, design to implement the inductive load drive circuit that performance is high.
2. an inductive load drive circuit, it is characterized in that: comprise power supply, function signal generator, driving power amplifier, described function signal generator and the series connection of driving power amplifier, power supply is contiguous function signal generator and driving power amplifier respectively, drive power amplifier to be connected with electric capacity, electric capacity connects load.
3. inductive load drive circuit as claimed in claim 2, it is characterized in that: described driving power amplifier is made up of power amplifier level power supply and amplifying circuit, power amplifier level power supply is the high performance medium and small integrated amplifier of low-pressure type, and amplifying circuit is the amplifying circuit of universal integrated transporting discharging composition.
4. inductive load drive circuit as claimed in claim 3, is characterized in that: described power amplifier level power supply is TA7241 or μ PC1185.
5. inductive load drive circuit as claimed in claim 2, is characterized in that: described function generator is 8038 or 2206 integrated function generators.
6. inductive load drive circuit as claimed in claim 2, is characterized in that: described capacitor C should meet C=1/ (ω
0 2l) ≈ 0.047 μ F, and resistance to operating voltage, U
c> Q
0u
0√ 2 ≈ 100V.
7. inductive load drive circuit as claimed in claim 2, is characterized in that: described power supply is 15V DC power supply.
8. inductive load drive circuit as claimed in claim 2, is characterized in that: described power supply also comprises power circuit, and power circuit is three proper voltage regulator circuits.
9. inductive load drive circuit as claimed in claim 8, is characterized in that: described three proper pressurizers are circuit TA7815.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385912.5A CN104135265A (en) | 2014-08-07 | 2014-08-07 | Design method of inductive load driving circuit and circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385912.5A CN104135265A (en) | 2014-08-07 | 2014-08-07 | Design method of inductive load driving circuit and circuit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104135265A true CN104135265A (en) | 2014-11-05 |
Family
ID=51807821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385912.5A Pending CN104135265A (en) | 2014-08-07 | 2014-08-07 | Design method of inductive load driving circuit and circuit thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626576A (en) * | 2023-07-25 | 2023-08-22 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233950B2 (en) * | 1972-07-11 | 1978-01-26 | Deutsche Bundesbahn, Vertreten Durch Das Bundesbahn-Zentralamt Minden, 4950 Minden | Static converter with capacitors - dischargeable at any time in half-wave into DC load at output of half-controlled rectifier |
| JP2000308357A (en) * | 1999-04-21 | 2000-11-02 | Hitachi Lighting Ltd | Inverter |
| CN101582652A (en) * | 2009-06-26 | 2009-11-18 | 哈尔滨工业大学 | High-dynamic high-power bridge-type piezoceramics driving power with signal generator |
| CN101588072A (en) * | 2008-01-11 | 2009-11-25 | 北京博旺天成科技发展有限公司 | Novel energy-saving power regulator |
| CN201383599Y (en) * | 2009-03-06 | 2010-01-13 | 丘振良 | Power socket and power switch |
| CN202652623U (en) * | 2012-05-25 | 2013-01-02 | 天津工业大学 | LED indoor desk lamp based on wireless electric energy transmission technology |
| CN204013473U (en) * | 2014-08-07 | 2014-12-10 | 金陵科技学院 | Inductive load drive circuit |
-
2014
- 2014-08-07 CN CN201410385912.5A patent/CN104135265A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233950B2 (en) * | 1972-07-11 | 1978-01-26 | Deutsche Bundesbahn, Vertreten Durch Das Bundesbahn-Zentralamt Minden, 4950 Minden | Static converter with capacitors - dischargeable at any time in half-wave into DC load at output of half-controlled rectifier |
| JP2000308357A (en) * | 1999-04-21 | 2000-11-02 | Hitachi Lighting Ltd | Inverter |
| CN101588072A (en) * | 2008-01-11 | 2009-11-25 | 北京博旺天成科技发展有限公司 | Novel energy-saving power regulator |
| CN201383599Y (en) * | 2009-03-06 | 2010-01-13 | 丘振良 | Power socket and power switch |
| CN101582652A (en) * | 2009-06-26 | 2009-11-18 | 哈尔滨工业大学 | High-dynamic high-power bridge-type piezoceramics driving power with signal generator |
| CN202652623U (en) * | 2012-05-25 | 2013-01-02 | 天津工业大学 | LED indoor desk lamp based on wireless electric energy transmission technology |
| CN204013473U (en) * | 2014-08-07 | 2014-12-10 | 金陵科技学院 | Inductive load drive circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626576A (en) * | 2023-07-25 | 2023-08-22 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
| CN116626576B (en) * | 2023-07-25 | 2023-11-07 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
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Application publication date: 20141105 |