CN105978381A - Harmonic suppression circuit-based power amplifying regulated inverter power supply - Google Patents
Harmonic suppression circuit-based power amplifying regulated inverter power supply Download PDFInfo
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- CN105978381A CN105978381A CN201610439872.7A CN201610439872A CN105978381A CN 105978381 A CN105978381 A CN 105978381A CN 201610439872 A CN201610439872 A CN 201610439872A CN 105978381 A CN105978381 A CN 105978381A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a harmonic suppression circuit-based power amplifying regulated inverter power supply. The harmonic suppression circuit-based power amplifying regulated inverter power supply is characterized by mainly comprising a control chip U, a transformer T, a capacitor C3, a capacitor C2 and the like, wherein a positive electrode of the capacitor C3 is connected with a tap of a primary induction coil of the transformer T and a negative electrode is grounded; and the positive electrode of the capacitor C2 is connected with the negative electrode of the capacitor C3 and the negative electrode is connected with an REF pin of the control chip U. By the harmonic suppression circuit-based power amplifying regulated inverter power supply, a generated harmonic signal can be filtered; the stability of output voltage is greatly improved; and an electricity load works more stably. The output power can be increased, so that the harmonic suppression circuit-based power amplifying regulated inverter power supply is suitable for a high-power load.
Description
Technical field
The present invention relates to a kind of inverter, specifically refer to a kind of power amplification type based on harmonic suppression circuit
Voltage stabilizing inverter source.
Background technology
Inverter can be transformed into alternating current unidirectional current.It is widely used in air-conditioning, home theater, electricity
Electric tool etc..But, the voltage waveform of currently used inverter output is unstable, serious impact
The normal work of load.
Summary of the invention
It is an object of the invention to the defect of the voltage waveforms instability overcoming existing inverter to export, carry
For a kind of power amplification type voltage stabilizing inverter source based on harmonic suppression circuit.
The purpose of the present invention is achieved through the following technical solutions: a kind of power amplification based on harmonic suppression circuit
Type voltage stabilizing inverter source, mainly by control chip U, transformator T, positive pole and the former limit inductance of transformator T
The tap of coil is connected, the electric capacity C3 of minus earth, and positive pole is connected with the negative pole of electric capacity C3, negative pole
The electric capacity C2 being then connected with the REF pin of control chip U, one end is connected with the positive pole of electric capacity C3,
The other end then positive pole with electric capacity C2 is collectively forming inductance L, the P pole ground connection of input of the present invention, N pole
The diode D1 being sequentially connected through resistance R1 positive pole with electric capacity C2 after resistance R2, positive pole and resistance
The electric capacity C1 that R1 is connected with the junction point of resistance R2, negative pole is connected with the N pole of diode D1, string
The resistance R3 being connected between the positive pole of electric capacity C3 and the C1 pin of control chip U, former with transformator T
The power amplification circuit that the Same Name of Ends of limit inductance coil is connected, non-with the former limit inductance coil of transformator T
The harmonic suppression circuit that Same Name of Ends is connected, is connected with harmonic suppression circuit and power amplification circuit respectively
Change-over circuit, and it is serially connected in the feedback circuit between the secondary inductance coil of transformator T and control chip U
Composition；Described feedback circuit is also connected with change-over circuit；The VCC pin of described control chip U and electric capacity
The positive pole of C3 is connected, its+IN2 pin with-IN2 pin all positive pole with electric capacity C1 be connected, its PWN
All negative poles with electric capacity C1 are connected pin with-IN1 pin；The C1 pin of described control chip U and conversion
Circuit is connected.
Further, described power amplification circuit is by amplifier P4, audion VT4, positive pole and audion VT4
Base stage is connected, negative pole emitter stage with audion VT4 after resistance R16 is connected electric capacity C9, P
Pole is connected with the negative pole of amplifier P4, N pole is same with what the negative pole of electric capacity C9 was connected after resistance R19
Time ground connection diode D4, be serially connected in the resistance between the outfan of amplifier P4 and the negative pole of electric capacity C9
R20, positive pole is connected with the colelctor electrode of audion VT4, negative pole is connected with the N pole of diode D4
Electric capacity C11, positive pole is connected with the base stage of audion VT4, negative pole after resistance R17 with amplifier P4
Electric capacity C10, the N pole that is connected of positive pole be connected with the outfan of amplifier P4, P pole is through resistance R18
The diode D5 that colelctor electrode with audion VT4 is connected afterwards, and the outfan of positive pole and amplifier P4
Be connected, negative pole forms as the electric capacity C12 of the outfan of this power amplification circuit；Described audion VT4
Base stage as the input of this power amplification circuit and be connected with change-over circuit；Described power amplification circuit
Outfan be connected with the Same Name of Ends of the former limit inductance coil of transformator T.
Described harmonic suppression circuit is by amplifier P1, amplifier P2, amplifier P3, audion VT3, negative
Pole negative pole with amplifier P2 after resistance R11 is connected, positive pole after resistance R10 with amplifier P1's
The electric capacity C7 that positive pole is connected, is serially connected in the resistance R12 between positive pole and the outfan of amplifier P1, concatenation
Resistance R13, P pole between the negative pole and outfan of amplifier P2 is connected with the outfan of amplifier P1,
The diode D3 that N pole is connected with the positive pole of amplifier P3, is serially connected in positive pole and the outfan of amplifier P3
Between resistance R14, positive pole is connected with the negative pole of amplifier P3, the outfan of negative pole and amplifier P2
The electric capacity C8 being connected, and one end is connected with the emitter stage of audion VT3, the resistance of other end ground connection
R15 forms；The colelctor electrode of described audion VT3 is connected with the outfan of amplifier P3, its base stage with put
The outfan of big device P2 is connected；The positive pole of described amplifier P2 is connected with the positive pole of amplifier P1, it
Negative pole then negative pole with amplifier P1 is connected；The positive pole of described electric capacity C7 is as this harmonic suppression circuit
Input is also connected with change-over circuit；Defeated as this harmonic suppression circuit of the outfan of described amplifier P3
Go out end and be connected with the non-same polarity of the former limit inductance coil of transformator T.
Described change-over circuit by NAND gate A1, NAND gate A2, field effect transistor MOS1, field effect transistor MOS2,
Negative pole source electrode with field effect transistor MOS2 after resistance R8 is connected, positive pole after resistance R6 with field effect
The electric capacity C5 that the grid of pipe MOS1 is connected, and it is serially connected in the positive pole of NAND gate A1 and electric capacity C5
Resistance R5 composition between positive pole；The positive pole of described electric capacity C5 is connected with feedback circuit；Described NAND gate
The positive pole of A1 is connected with its negative pole, its outfan is then connected with the positive pole of NAND gate A2；Described and non-
The positive pole of door A2 is connected with its negative pole, its outfan is then connected with the grid of field effect transistor MOS2；Institute
State the source ground of field effect transistor MOS2, its drain electrode is then connected with the input of harmonic suppression circuit；Institute
State the source ground of field effect transistor MOS1, its drain electrode is then connected with the input of power amplification circuit；Institute
The C1 pin stating control chip U is connected with the positive pole of NAND gate A1.
Described feedback circuit by audion VT1, audion VT2, be serially connected in audion VT1 colelctor electrode and
Resistance R4 between the+IN1 pin of control chip U, positive pole is connected with the emitter stage of audion VT1,
The electric capacity C4 that negative pole then positive pole with electric capacity C5 is connected, is serially connected in negative pole and the audion VT2 of electric capacity C4
Base stage between resistance R7, N pole be connected with the colelctor electrode of audion VT2, P pole then with electric capacity C4
The diode D2 that is connected of negative pole, positive pole is connected with the emitter stage of audion VT2, negative pole then with transformation
The electric capacity C6 that the non-same polarity of the secondary inductance coil of device T is connected, and it is serially connected in the secondary of transformator T
Resistance R9 composition between Same Name of Ends and the P pole of diode D2 of inductance coil；Described control chip U's
Connect while E1 pin is connected with the base stage of audion VT1, its GND pin is connected with+IN1 pin
Ground, its+IN1 pin then negative pole with electric capacity C4 is connected；The secondary inductance coil of described transformator T
Same Name of Ends and non-same polarity are collectively forming the outfan of the present invention.
Described control chip U is the integrated chip of TL494.
The present invention compared with the prior art, has the following advantages and beneficial effect:
(1) waveform to output voltage that the present invention can be real-time is adjusted, so that the ripple of output voltage
Shape reaches stable state, greatly improves the stability of output voltage, uses electric loading work more steady
Fixed.
(2) harmonic signal produced can be filtered by the present invention, improves stablizing of output voltage of the present invention
Property.
(3) present invention can increase its output, so that the present invention is applicable to high power load.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the harmonic suppression circuit structure chart of the present invention.
Fig. 3 is the structure chart of the power amplification circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment
As it is shown in figure 1, the present invention is mainly by control chip U, transformator T, positive pole is former with transformator T's
The tap of limit inductance coil is connected, the electric capacity C3 of minus earth, positive pole is connected with the negative pole of electric capacity C3,
The electric capacity C2 that negative pole is then connected with the REF pin of control chip U, one end is connected with the positive pole of electric capacity C3
Connect, the other end then positive pole with electric capacity C2 be collectively forming the present invention input inductance L, P pole ground connection,
The diode D1 that N pole is sequentially connected through resistance R1 positive pole with electric capacity C2 after resistance R2, positive pole with
The electric capacity C1 that resistance R1 is connected with the junction point of resistance R2, negative pole is connected with the N pole of diode D1,
The resistance R3 being serially connected between the positive pole of electric capacity C3 and the C1 pin of control chip U, with transformator T's
The power amplification circuit that the Same Name of Ends of former limit inductance coil is connected, with the former limit inductance coil of transformator T
The harmonic suppression circuit that non-same polarity is connected, is connected with harmonic suppression circuit and power amplification circuit respectively
Change-over circuit, and be serially connected between the secondary inductance coil of transformator T and control chip U feedback electricity
Road forms.
Described feedback circuit is also connected with change-over circuit；The VCC pin of described control chip U and electric capacity
The positive pole of C3 is connected, its+IN2 pin with-IN2 pin all positive pole with electric capacity C1 be connected, its PWN
All negative poles with electric capacity C1 are connected pin with-IN1 pin；The C1 pin of described control chip U and conversion
Circuit is connected.In order to preferably implement the present invention, the described control chip U integrated chip of preferred TL494 comes
Realize.
Wherein, described change-over circuit is by NAND gate A1, NAND gate A2, field effect transistor MOS1, field effect transistor
MOS2, resistance R5, resistance R6, resistance R8 and electric capacity C5 form.
During connection, the negative pole of electric capacity C5 source electrode with field effect transistor MOS2 after resistance R8 is connected, it
Positive pole grid with field effect transistor MOS1 after resistance R6 is connected.Resistance R5 is serially connected in NAND gate A1
Positive pole and the positive pole of electric capacity C5 between.
The positive pole of this electric capacity C5 is connected with feedback circuit.The positive pole of described NAND gate A1 is connected with its negative pole
Connect, its outfan is then connected with the positive pole of NAND gate A2；The positive pole of described NAND gate A2 and its negative pole phase
Connect, its outfan is then connected with the grid of field effect transistor MOS2.The source of described field effect transistor MOS2
Pole ground connection, its drain electrode are then connected with the input of harmonic suppression circuit.The source of described field effect transistor MOS1
Pole ground connection, its drain electrode are then connected with the input of power amplification circuit.The C1 pin of described control chip U
It is connected with the positive pole of NAND gate A1.
It addition, described feedback circuit is by audion VT1, audion VT2, resistance R4, resistance R7, electricity
Resistance R9, electric capacity C4, electric capacity C6 and diode D2 composition.
During connection, resistance R4 be serially connected in the colelctor electrode of audion VT1 and control chip U+IN1 pin it
Between.The positive pole of electric capacity C4 is connected with the emitter stage of audion VT1, its negative pole then with the positive pole of electric capacity C5
It is connected.Resistance R7 is serially connected between the negative pole of electric capacity C4 and the base stage of audion VT2.Diode D2
N pole be connected with the colelctor electrode of audion VT2, its P pole then negative pole with electric capacity C4 is connected.Electricity
The positive pole holding C6 is connected with the emitter stage of audion VT2, its negative pole then with the secondary inductance of transformator T
The non-same polarity of coil is connected.Resistance R9 is serially connected in the Same Name of Ends and two of the secondary inductance coil of transformator T
Between the P pole of pole pipe D2.
The E1 pin of described control chip U is connected with the base stage of audion VT1, its GND pin with
While+IN1 pin is connected, ground connection, its+IN1 pin then negative pole with electric capacity C4 is connected.Described change
The Same Name of Ends of the secondary inductance coil of depressor T and non-same polarity are collectively forming the outfan of the present invention.
As in figure 2 it is shown, described harmonic suppression circuit is by amplifier P1, amplifier P2, amplifier P3, three
Pole pipe VT3, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15,
Electric capacity C7, electric capacity C8 and diode D3 form.
During connection, the negative pole of electric capacity C7 negative pole with amplifier P2 after resistance R11 is connected, its positive pole
After resistance R10, the positive pole with amplifier P1 is connected.Resistance R12 be serially connected in amplifier P1 positive pole and
Between outfan.Resistance R13 is serially connected between negative pole and the outfan of amplifier P2.The P of diode D3
Pole is connected with the outfan of amplifier P1, its N pole is connected with the positive pole of amplifier P3.Resistance R14
It is serially connected between positive pole and the outfan of amplifier P3.The positive pole of electric capacity C8 is connected with the negative pole of amplifier P3
Connect, its negative pole is connected with the outfan of amplifier P2.One end of resistance R15 is sent out with audion VT3's
Emitter-base bandgap grading is connected, its other end ground connection.
Meanwhile, the colelctor electrode of described audion VT3 be connected with the outfan of amplifier P3, its base stage with put
The outfan of big device P2 is connected.The positive pole of described amplifier P2 is connected with the positive pole of amplifier P1, it
Negative pole then negative pole with amplifier P1 is connected.The positive pole of described electric capacity C7 is as this harmonic suppression circuit
Input is also connected with the drain electrode of field effect transistor MOS2；The outfan of described amplifier P3 is as this harmonic wave
The outfan of suppression circuit is also connected with the non-same polarity of the former limit inductance coil of transformator T.
As it is shown on figure 3, this power amplification circuit is by amplifier P4, audion VT4, resistance R16, resistance
R17, resistance R18, resistance R19, resistance R20, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity
C12, diode D4 and diode D5 form.
During connection, the positive pole of electric capacity C9 is connected with the base stage of audion VT4, its negative pole is through resistance R16
Emitter stage with audion VT4 is connected afterwards.The P pole of diode D4 is connected with the negative pole of amplifier P4,
Its N pole negative pole with electric capacity C9 after resistance R19 be connected while ground connection.Resistance R20 is serially connected in be put
Between outfan and the negative pole of electric capacity C9 of big device P4.The positive pole of electric capacity C11 and the current collection of audion VT4
Pole is connected, its negative pole is connected with the N pole of diode D4.The positive pole of electric capacity C10 and audion VT4
Base stage be connected, its negative pole positive pole with amplifier P4 after resistance R17 is connected.Diode D5's
N pole is connected with the outfan of amplifier P4, its P pole after resistance R18 with the current collection of audion VT4
Pole is connected.The positive pole of electric capacity C12 is connected with the outfan of amplifier P4, its negative pole is put as this power
The outfan of big circuit is also connected with the Same Name of Ends of the former limit inductance coil of transformator T.Described audion VT4
Base stage as the input of this power amplification circuit and be connected with the drain electrode of field effect transistor MOS1.
The present invention can be real-time the waveform to output voltage be adjusted, so that the waveform of output voltage reaches
To stable state, meanwhile, the present invention can carry out filtration greatly improve defeated to the harmonic signal produced
Go out the stability of voltage, use electric loading work more stable.The present invention can increase its output, from
And make the present invention be applicable to high power load.
As it has been described above, the present invention just can well be realized.
Claims (6)
1. a power amplification type voltage stabilizing inverter source based on harmonic suppression circuit, it is characterised in that main
By control chip U, transformator T, positive pole is connected with the tap of the former limit inductance coil of transformator T, bears
The electric capacity C3 of pole ground connection, positive pole is connected with the negative pole of electric capacity C3, negative pole then with the REF of control chip U
The electric capacity C2 that pin is connected, one end is connected with the positive pole of electric capacity C3, the other end then with electric capacity C2 just
Pole is collectively forming inductance L, the P pole ground connection of the input of the present invention, N pole sequentially through resistance R1 and resistance R2
The diode D1 that positive pole with electric capacity C2 is connected afterwards, the junction point phase of positive pole and resistance R1 and resistance R2
The electric capacity C1 that connection, negative pole are connected with the N pole of diode D1, is serially connected in positive pole and the control of electric capacity C3
Resistance R3 between the C1 pin of coremaking sheet U, is connected with the Same Name of Ends of the former limit inductance coil of transformator T
The power amplification circuit connect, the harmonics restraint being connected with the non-same polarity of the former limit inductance coil of transformator T
Circuit, the change-over circuit being connected with harmonic suppression circuit and power amplification circuit respectively, and it is serially connected in change
Feedback circuit composition between secondary inductance coil and the control chip U of depressor T；Described feedback circuit also with
Change-over circuit is connected；The VCC pin of described control chip U is connected with the positive pole of electric capacity C3, its+IN2
Pin with-IN2 pin all positive pole with electric capacity C1 be connected, its PWN pin and-IN1 pin all and electric capacity
The negative pole of C1 is connected；The C1 pin of described control chip U is connected with change-over circuit.
A kind of power amplification type voltage stabilizing inversion based on harmonic suppression circuit the most according to claim 1 electricity
Source, it is characterised in that described power amplification circuit is by amplifier P4, audion VT4, positive pole and audion
The electric capacity that the base stage of VT4 is connected, negative pole emitter stage with audion VT4 after resistance R16 is connected
C9, P pole is connected with the negative pole of amplifier P4, N pole negative pole with electric capacity C9 after resistance R19 is connected
While connecing, the diode D4 of ground connection, is serially connected between the outfan of amplifier P4 and the negative pole of electric capacity C9
Resistance R20, positive pole is connected with the colelctor electrode of audion VT4, negative pole is extremely connected with the N of diode D4
The electric capacity C11 connect, positive pole is connected with the base stage of audion VT4, negative pole after resistance R17 with amplifier
Electric capacity C10, the N pole that the positive pole of P4 is connected is connected with the outfan of amplifier P4, P pole is through resistance
The diode D5 that after R18, colelctor electrode with audion VT4 is connected, and positive pole and amplifier P4's is defeated
Go out end be connected, negative pole as the outfan of this power amplification circuit electric capacity C12 form；Described audion
The base stage of VT4 as the input of this power amplification circuit and is connected with change-over circuit；Described power amplification
The outfan of circuit is connected with the Same Name of Ends of the former limit inductance coil of transformator T.
A kind of power amplification type voltage stabilizing inversion based on harmonic suppression circuit the most according to claim 2 electricity
Source, it is characterised in that described harmonic suppression circuit is by amplifier P1, amplifier P2, amplifier P3, three
Pole pipe VT3, negative pole negative pole with amplifier P2 after resistance R11 is connected, positive pole is after resistance R10
The electric capacity C7 being connected with the positive pole of amplifier P1, is serially connected between positive pole and the outfan of amplifier P1
Resistance R12, resistance R13, the P pole being serially connected between negative pole and the outfan of amplifier P2 and amplifier P1
The diode D3 that outfan is connected, N pole is connected with the positive pole of amplifier P3, be serially connected in amplifier
Resistance R14 between positive pole and the outfan of P3, positive pole is connected with the negative pole of amplifier P3, negative pole with put
The electric capacity C8 that the outfan of big device P2 is connected, and one end is connected with the emitter stage of audion VT3,
The resistance R15 composition of other end ground connection；The colelctor electrode of described audion VT3 and the outfan of amplifier P3
Be connected, its base stage is connected with the outfan of amplifier P2；The positive pole of described amplifier P2 and amplifier
The positive pole of P1 is connected, its negative pole then negative pole with amplifier P1 is connected；The positive pole of described electric capacity C7 is made
For the input of this harmonic suppression circuit and it is connected with change-over circuit；The outfan conduct of described amplifier P3
The outfan of this harmonic suppression circuit is also connected with the non-same polarity of the former limit inductance coil of transformator T.
A kind of power amplification type voltage stabilizing inversion based on harmonic suppression circuit the most according to claim 3 electricity
Source, it is characterised in that described change-over circuit is by NAND gate A1, NAND gate A2, field effect transistor MOS1, field
Effect pipe MOS2, negative pole source electrode with field effect transistor MOS2 after resistance R8 is connected, positive pole is through resistance
The electric capacity C5 being connected with the grid of field effect transistor MOS1 after R6, and it is serially connected in the positive pole of NAND gate A1
And the resistance R5 composition between the positive pole of electric capacity C5；The positive pole of described electric capacity C5 is connected with feedback circuit；
The positive pole of described NAND gate A1 is connected with its negative pole, its outfan is then connected with the positive pole of NAND gate A2；
The positive pole of described NAND gate A2 is connected with its negative pole, its outfan then with the grid phase of field effect transistor MOS2
Connect；The source ground of described field effect transistor MOS2, its drain electrode then with the input phase of harmonic suppression circuit
Connect；The source ground of described field effect transistor MOS1, its drain electrode then with the input phase of power amplification circuit
Connect；The C1 pin of described control chip U is connected with the positive pole of NAND gate A1.
A kind of power amplification type voltage stabilizing inversion based on harmonic suppression circuit the most according to claim 4 electricity
Source, it is characterised in that described feedback circuit, by audion VT1, audion VT2, is serially connected in audion VT1
Colelctor electrode and the+IN1 pin of control chip U between resistance R4, the transmitting of positive pole and audion VT1
The electric capacity C4 that pole is connected, negative pole then positive pole with electric capacity C5 is connected, be serially connected in electric capacity C4 negative pole and
Resistance R7, N pole between the base stage of audion VT2 is connected with the colelctor electrode of audion VT2, P pole then
The diode D2 being connected with the negative pole of electric capacity C4, positive pole is connected with the emitter stage of audion VT2, bears
The electric capacity C6 that pole then non-same polarity with the secondary inductance coil of transformator T is connected, and it is serially connected in transformation
Resistance R9 composition between Same Name of Ends and the P pole of diode D2 of the secondary inductance coil of device T；Described control
The E1 pin of coremaking sheet U is connected with the base stage of audion VT1, its GND pin and+IN1 pin phase
While connection, ground connection, its+IN1 pin then negative pole with electric capacity C4 is connected；The pair of described transformator T
The Same Name of Ends of limit inductance coil and non-same polarity are collectively forming the outfan of the present invention.
A kind of power amplification type voltage stabilizing inversion based on harmonic suppression circuit the most according to claim 5 electricity
Source, it is characterised in that described control chip U is the integrated chip of TL494.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439872.7A CN105978381A (en) | 2016-06-17 | 2016-06-17 | Harmonic suppression circuit-based power amplifying regulated inverter power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439872.7A CN105978381A (en) | 2016-06-17 | 2016-06-17 | Harmonic suppression circuit-based power amplifying regulated inverter power supply |
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| CN201610439872.7A Pending CN105978381A (en) | 2016-06-17 | 2016-06-17 | Harmonic suppression circuit-based power amplifying regulated inverter power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106227250A (en) * | 2016-10-13 | 2016-12-14 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough water level control system |
| CN106292754A (en) * | 2016-10-13 | 2017-01-04 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough voltage stabilizing adjusting type water level control system |
| CN106292755A (en) * | 2016-10-13 | 2017-01-04 | 四川森迪科技发展股份有限公司 | Plant based on current buffering protection circuit drinking trough water level control system |
| CN106483988A (en) * | 2016-10-13 | 2017-03-08 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough potential pulse adjusting type water level control system |
-
2016
- 2016-06-17 CN CN201610439872.7A patent/CN105978381A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227250A (en) * | 2016-10-13 | 2016-12-14 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough water level control system |
| CN106292754A (en) * | 2016-10-13 | 2017-01-04 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough voltage stabilizing adjusting type water level control system |
| CN106292755A (en) * | 2016-10-13 | 2017-01-04 | 四川森迪科技发展股份有限公司 | Plant based on current buffering protection circuit drinking trough water level control system |
| CN106483988A (en) * | 2016-10-13 | 2017-03-08 | 四川森迪科技发展股份有限公司 | A kind of plant drinking trough potential pulse adjusting type water level control system |
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