CN106253426A - A kind of charging voltage detecting type inverter based on overvoltage crowbar - Google Patents
A kind of charging voltage detecting type inverter based on overvoltage crowbar Download PDFInfo
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- CN106253426A CN106253426A CN201610668951.5A CN201610668951A CN106253426A CN 106253426 A CN106253426 A CN 106253426A CN 201610668951 A CN201610668951 A CN 201610668951A CN 106253426 A CN106253426 A CN 106253426A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- 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
- H02M1/14—Arrangements for reducing ripples from dc 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
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Abstract
The invention discloses a kind of charging voltage detecting type inverter based on overvoltage crowbar, it is characterized in that, main by control chip U2, transformator T, diode rectifier U1, two-way switch S, accumulator J, the overvoltage crowbar being connected with the b contact of two-way switch S, polar capacitor C1, polar capacitor C13, polar capacitor C12, polar capacitor C11, voltage detecting circuit, the boosting being connected with the CHRG1 pin of control chip U2 and CHRG2 pin and PROG pin respectively adjusts circuit, and adjust circuit and a contact of two-way switch S respectively with boosting and the composition such as non-linear amplifying circuit that transformator T former limit inductance coil is connected.Interference surging in output electric current can be eliminated or suppress by the present invention, can effectively improve the present invention rejection ability to the pulsation of output electric current, makes output electric current keep stable.
Description
Technical field
The present invention relates to a kind of charge power supply, specifically refer to a kind of charging voltage detecting type based on overvoltage crowbar
Inverter.
Background technology
The fairing that charge power supply charging supply charges for accumulator.Early stage employing ac motor-straight
Stream generating set, makees charge power supply also known as rotary unit, and after the sixties in 20th century, this charge power supply is by electronic device group
The charge power supply become replaces.But, the charge power supply of existing electronic device composition is frequently with dual transformer so that electronic device
Charge power supply relatively costly of composition；The output of the charge power supply of this electronic device composition is the lowest, causes load
Ability；Further, the charge power supply of existing electronic device composition is poor to the rejection ability of output ripple current, and there is output
The problem of spread of voltage, thus when causing charging, there is interrupted situation in output electric current.
Summary of the invention
The output that the charge power supply that it is an object of the invention to overcome existing electronic device to form exists is low, output
The defect of spread of voltage, it is provided that a kind of charging voltage detecting type inverter based on overvoltage crowbar.
The purpose of the present invention realizes by following technical scheme: a kind of charging voltage detecting type based on overvoltage crowbar
Inverter, mainly by control chip U2, transformator T, diode rectifier U1, two-way switch S, accumulator J, with two-way switch
The overvoltage crowbar that the b contact of S is connected, positive pole is sequentially connected through resistance R1 a contact with two-way switch S after inductance L1
Connect, a contact with two-way switch S after resistance R2, polar capacitor C1, the P pole of minus earth is connected, N pole and control chip U2
GND pin be connected after b contact with two-way switch S after resistance R3, light emitting diode VD1, the P pole of ground connection be connected, N
The light emitting diode VD2 of pole ground connection, negative pole is connected with overvoltage crowbar, positive pole after resistance R19 with diode rectifier
The polar capacitor C13 that the cathode output end of U1 is connected, positive pole is connected with the cathode output end of diode rectifier U1, negative pole
The polar capacitor C12 of ground connection after being connected with the cathode output end of diode rectifier U1, positive pole and transformator T secondary inductance line
The polar capacitor C11 that Same Name of Ends is connected, negative pole is connected with the non-same polarity of transformator T secondary inductance coil of circle, respectively
The boosting being connected with the CHRG1 pin of control chip U2 and CHRG2 pin and PROG pin adjusts circuit, respectively with boosting
Adjust the non-linear amplifying circuit that circuit is connected with a contact and the transformator T former limit inductance coil of two-way switch S, and
Input is connected with non-linear amplifying circuit, outfan non-same polarity of limit former with transformator T inductance coil after resistance R30
The voltage detecting circuit composition being connected；The junction point of described resistance R1 and inductance L1 is connected with the VCC pin of control chip U2
Connect；The tap of one of them input limit former with transformator T inductance coil of described diode rectifier U1 be connected after ground connection,
The bar of lassoing a horse of its another input limit former with transformator T inductance coil is connected；The positive pole of described accumulator J and two-way switch
The control of S is connected, its minus earth.
Described voltage detecting circuit is by field effect transistor MOS5, field effect transistor MOS6, audion VT8, audion VT9, negative pole
Be connected with the base stage of audion VT8, polar capacitor C20 that positive pole is connected with non-linear amplifying circuit after resistance R31, just
Pole positive pole with polar capacitor C20 after resistance R33 is connected, polar capacitor C19, the P pole of minus earth after resistance R32 with
The diode D11, P that the positive pole of polar capacitor C20 is connected, N pole colelctor electrode with audion VT8 after resistance R35 is connected
Pole emitter stage with audion VT8 after adjustable resistance R34 is connected, N pole after resistance R38 with the source electrode of field effect transistor MOS5
The diode D12 being connected, one end is connected with the source electrode of field effect transistor MOS5, the resistance R39 of other end ground connection, positive pole and three
The polar capacitor C21 that the colelctor electrode of pole pipe VT8 is connected, negative pole is connected with the grid of field effect transistor MOS5 after resistance R37,
Negative pole emitter stage with audion VT9 after resistance R41 is connected, be connected with the N pole of diode D11 after positive electrode resistance R36
The drain electrode with field effect transistor MOS5 after inductance L5 of polar capacitor C22, P pole be connected, N pole after resistance R40 with field effect
The diode D13 that the source electrode of pipe MOS5 is connected, negative pole is connected with the grid of field effect transistor MOS6, positive pole and field effect transistor
The polar capacitor C23 that the source electrode of MOS5 is connected, positive pole is connected with the base stage of audion VT9, negative pole after resistance R42 with field
The polar capacitor C24 that the source electrode of effect pipe MOS6 is connected, and P pole is connected with the colelctor electrode of audion VT9, N pole is through electricity
The Zener diode D14 composition being connected with the non-same polarity of transformator T inductance coil after resistance R30；Described field effect transistor MOS5
Drain electrode be connected with the negative pole of polar capacitor C22；The grounded drain of described field effect transistor MOS6.
Further, described overvoltage crowbar by field effect transistor MOS2, field effect transistor MOS3, field effect transistor MOS4, three
Pole pipe VT6, audion VT7, negative pole source electrode with field effect transistor MOS3 after resistance R22 is connected, positive pole and polar capacitor C13
The polar capacitor C14 that is connected of negative pole, one end is connected with the drain electrode of field effect transistor MOS, the other end is with polar capacitor C14's
The critesistor RT that positive pole is connected, positive pole positive pole with polar capacitor C14 after resistance R20 is connected, the pole of minus earth
Property electric capacity C15, P pole is connected with the grid of field effect transistor MOS3, N pole base stage with audion VT7 after resistance R25 is connected
Diode D8, the adjustable electric that one end is connected with the negative pole of polar capacitor C14, the other end is connected with the N pole of diode D8
Resistance R21, positive pole drain electrode with field effect transistor MOS3 after inductance L4 is connected, negative pole is connected with the emitter stage of audion VT6
Polar capacitor C16, P pole source electrode with field effect transistor MOS2 after resistance R23 be connected, N pole after resistance R24 with polarity electricity
Holding the diode D7 that the positive pole of C16 is connected, positive pole is connected with the base stage of audion VT7, the polar capacitor of minus earth
C17, P pole negative pole with polar capacitor C17 after resistance R29 is connected, N pole after resistance R28 with the colelctor electrode of audion VT7
The voltage stabilizing that N pole is connected, P pole is connected with the drain electrode of field effect transistor MOS4 of diode D9, the N pole being connected and diode D9
Diode D10, and positive pole colelctor electrode with audion VT6 after resistance R26 is connected, negative pole after adjustable resistance R27 with
The polar capacitor C18 composition that the colelctor electrode of audion VT7 is connected；The negative pole of described polar capacitor C14 also with field effect transistor
The grid of MOS2 is connected；The base stage of described audion VT7 also positive pole with polar capacitor C16 is connected, its emitter stage and three
The base stage of pole pipe VT6 is connected；The grid of described field effect transistor MOS4 is connected with the positive pole of polar capacitor C18, its source electrode connects
Ground；The N pole of described Zener diode D10 is also connected with the b contact of two-way switch S.
Described boosting adjusts circuit and is connected with the drain electrode of field effect transistor MOS1 by field effect transistor MOS1, audion VT1, positive pole
Connect, polar capacitor C3, the P pole of minus earth grid with field effect transistor MOS1 after resistance R4 is connected, N pole is after resistance R5
The diode D1 being connected with the CHRG2 pin of control chip U2, positive pole is connected with the grid of field effect transistor MOS1, negative pole warp
The polar capacitor C4 being connected with the source electrode of field effect transistor MOS1 after resistance R8, negative pole is connected with the base stage of audion VT1, just
Polar capacitor C5, the P pole that pole is connected with the source electrode of field effect transistor MOS1 after inductance L2 and the CHRG1 pin of control chip U2
Be connected, diode D2 that N pole is connected with the colelctor electrode of audion VT1, and N pole after adjustable resistance R9 with audion
The diode D3 composition that the colelctor electrode of VT1 is connected, P pole is connected with the PROG pin of control chip U2 after resistance R6；Institute
State the negative pole of the polar capacitor C4 colelctor electrode also with audion VT1 to be connected；The grid of described field effect transistor MOS1 also with control
The VCC pin of chip U2 is connected；The emitter stage of described audion VT1 and the N pole of diode D1 are collectively forming boosting and adjust electricity
The outfan on road is also connected with non-linear amplifying circuit.
Described non-linear amplifying circuit is by audion VT2, audion VT3, audion VT4, audion VT5, P pole and three poles
The Zener diode D4 that the emitter stage of pipe VT1 is connected, N pole base stage with audion VT3 after resistance R11 is connected, negative pole
The polar capacitor C7 that base stage with audion VT4 is connected after resistance R12, positive pole is connected with the emitter stage of audion VT3,
The diode that N pole is connected with the colelctor electrode of audion VT4, P pole colelctor electrode with audion VT3 after resistance R14 is connected
D6, negative pole is connected with the colelctor electrode of audion VT4, positive pole colelctor electrode with audion VT3 after resistance R16 is connected and is followed by
The polar capacitor C9 on ground, positive pole emitter stage with audion VT4 after resistance R13 is connected, negative pole after resistance R17 with transformation
The polar capacitor C10 that the Same Name of Ends of device T former limit inductance coil is connected, positive pole after resistance R10 with the colelctor electrode of audion VT2
Be connected, polar capacitor C8 that negative pole colelctor electrode with audion VT4 after adjustable resistance R15 is connected, one end and polarity electricity
Hold inductance L3, the N pole that negative pole is connected, the other end is connected of C8 and the base stage of audion VT5 with the colelctor electrode of audion VT4
Be connected, diode D5 that P pole is connected with the emitter stage of audion VT2, positive pole after resistance R7 with the current collection of audion VT2
The polar capacitor C6 that pole is connected, negative pole is connected with the colelctor electrode of audion VT5, and a contact of positive pole and two-way switch S
Be connected, polar capacitor C2 composition that negative pole colelctor electrode with audion VT5 after resistance R18 is connected；Described audion VT2
Base stage be connected with the N pole of diode D1；The grounded collector of described audion VT3；The emitter stage warp of described audion VT5
After resistance R31, the positive pole with polar capacitor C20 is connected.
In order to reach more preferable using effect, described control chip U2 the most preferentially have employed the integrated chip of SX5058 and comes real
Existing.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the interference surging in output electric current can be eliminated or suppress by the present invention, effectively raises the present invention couple
The rejection ability of the pulsation of output electric current, makes output electric current keep stable；And the frequency of output electric current can also be entered by the present invention
Row sum-equal matrix, the frequency making output electric current is more stable, thus improves the output of the present invention, effectively raises the present invention's
Load capacity.
(2) present invention can effectively reduce output voltage and the Leakage Current of electric current and loss current, can effectively improve
The power of the present invention；And the unusual fluctuations of output voltage and electric current can be suppressed, make output voltage and electric current keep stable, thus carry
The output voltage of the high present invention and the stability of electric current.
(3) instant high-voltage of input direct voltage can be eliminated or suppress by the present invention, is effectively prevented this
Bright backend electronics element and accumulator J are damaged by high voltage, ensure that stability and the reliability of the present invention.
(4) present invention can effectively reduce current loss, greatly improves the output of the present invention, makes the present invention's
Load capacity has obtained good raising, has saved cost, is well positioned to meet people's requirement at energy-conservation aspect.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the overvoltage crowbar of the present invention.
Fig. 3 is the electrical block diagram of the voltage detecting circuit of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to
This.
Embodiment
As it is shown in figure 1, the present invention is mainly by control chip U2, transformator T, diode rectifier U1, two-way switch S, store
Battery J, resistance R1, resistance R2, resistance R3, resistance R19, resistance R30, polar capacitor C1, polar capacitor C11, polar capacitor
C12, polar capacitor C13, inductance L1, voltage detecting circuit, overvoltage crowbar, light emitting diode VD1, light emitting diode VD2,
Boosting adjusts circuit, and non-linear amplifying circuit composition.
During connection, overvoltage crowbar is connected with the b contact of two-way switch S.The positive pole of polar capacitor C1 is sequentially through electricity
It is connected with a contact of two-way switch S after resistance R1 and inductance L1, minus earth.The P pole of light emitting diode VD1 is after resistance R2
Be connected with a contact of two-way switch S, N pole be connected with the GND pin of control chip U2 after ground connection.Light emitting diode VD2's
B contact with two-way switch S after resistance R3, P pole is connected, N pole ground connection.The negative pole of polar capacitor C13 and overvoltage crowbar
Being connected, positive pole cathode output end with diode rectifier U1 after resistance R19 is connected.
Wherein, the positive pole of polar capacitor C12 is connected with the cathode output end of diode rectifier U1, negative pole and diode
The cathode output end of commutator U1 be connected after ground connection.The positive pole of polar capacitor C11 is of the same name with transformator T secondary inductance coil
End is connected, and negative pole is connected with the non-same polarity of transformator T secondary inductance coil.Boosting adjust circuit respectively with control chip
The CHRG1 pin of U2 is connected with CHRG2 pin and PROG pin.Non-linear amplifying circuit respectively with boosting adjust circuit and
A contact and the transformator T former limit inductance coil of two-way switch S are connected.The input of voltage detecting circuit is put with non-linear
Big circuit is connected, and its outfan non-same polarity of limit former with transformator T inductance coil after resistance R30 is connected.
The junction point of described resistance R1 and inductance L1 is connected with the VCC pin of control chip U2；Described diode rectification
The tap of one of them input limit former with transformator T inductance coil of device U1 be connected after ground connection, its another input with
The bar of lassoing a horse of transformator T former limit inductance coil is connected；The positive pole of described accumulator J is connected with the control of two-way switch S, its
Minus earth.In order to reach more preferable using effect, described control chip U2 the most preferentially have employed the integrated chip of SX5058 and comes real
Existing.
Further, described boosting adjusts circuit by field effect transistor MOS1, audion VT1, resistance R4, resistance R5, resistance
R6, resistance R8, adjustable resistance R9, polar capacitor C3, polar capacitor C4, polar capacitor C5, diode D1, diode D2, and
Diode D3 forms.
During connection, the positive pole of polar capacitor C3 is connected with the drain electrode of field effect transistor MOS1, minus earth.Diode D1's
P pole grid with field effect transistor MOS1 after resistance R4 is connected, N pole after resistance R5 with the CHRG2 pin of control chip U2
It is connected.The positive pole of polar capacitor C4 is connected with the grid of field effect transistor MOS1, negative pole after resistance R8 with field effect transistor
The source electrode of MOS1 is connected.
Wherein, the negative pole of polar capacitor C5 is connected with the base stage of audion VT1, positive pole after inductance L2 with field effect transistor
The source electrode of MOS1 is connected.The P pole of diode D2 is connected with the CHRG1 pin of control chip U2, and N pole is with audion VT1's
Colelctor electrode is connected.The N pole of diode D3 colelctor electrode with audion VT1 after adjustable resistance R9 is connected, and P pole is through resistance R6
It is connected with the PROG pin of control chip U2 afterwards.
The negative pole of described polar capacitor C4 also colelctor electrode with audion VT1 is connected；The grid of described field effect transistor MOS1
Pole is also connected with the VCC pin of control chip U2；The emitter stage of described audion VT1 is collectively forming with the N pole of diode D1
Boosting adjusts the outfan of circuit and is connected with non-linear amplifying circuit.
Further, described non-linear amplifying circuit is by audion VT2, audion VT3, audion VT4, audion
VT5, resistance R7, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, adjustable resistance R15, resistance R16, resistance
R17, resistance R18, polar capacitor C2, polar capacitor C polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9,
Polar capacitor C10, Zener diode D4, diode D5, diode D6, and inductance L3 form.
During connection, the P pole of Zener diode D4 is connected with the emitter stage of audion VT1, N pole after resistance R11 with three
The base stage of pole pipe VT3 is connected.The negative pole of polar capacitor C7 base stage with audion VT4 after resistance R12 is connected, positive pole with
The emitter stage of audion VT3 is connected.The N pole of diode D6 is connected with the colelctor electrode of audion VT4, and P pole is after resistance R14
It is connected with the colelctor electrode of audion VT3.
Wherein, the negative pole of polar capacitor C9 is connected with the colelctor electrode of audion VT4, positive pole after resistance R16 with three poles
The colelctor electrode of pipe VT3 be connected after ground connection.The positive pole of polar capacitor C10 emitter stage with audion VT4 after resistance R13 is connected
Connecing, negative pole Same Name of Ends of limit former with transformator T inductance coil after resistance R17 is connected.The positive pole of polar capacitor C8 is through resistance
After R10, the colelctor electrode with audion VT2 is connected, and negative pole colelctor electrode with audion VT4 after adjustable resistance R15 is connected.
Meanwhile, one end of inductance L3 is connected with the negative pole of polar capacitor C8, the colelctor electrode phase of the other end and audion VT4
Connect.The N pole of diode D5 is connected with the base stage of audion VT5, and P pole is connected with the emitter stage of audion VT2.Polarity electricity
The positive pole colelctor electrode with audion VT2 after resistance R7 holding C6 is connected, and negative pole is connected with the colelctor electrode of audion VT5.
The positive pole of polar capacitor C2 is connected with a contact of two-way switch S, negative pole after resistance R18 with the colelctor electrode phase of audion VT5
Connect.
The base stage of described audion VT2 is connected with the N pole of diode D1；The grounded collector of described audion VT3；Institute
State the emitter stage of the audion VT5 positive pole with polar capacitor C20 after resistance R31 to be connected.
As in figure 2 it is shown, described overvoltage crowbar is by field effect transistor MOS2, field effect transistor MOS3, field effect transistor MOS4, three
Pole pipe VT6, audion VT7, resistance R20, adjustable resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance
R26, adjustable resistance R27, resistance R28, resistance R29, critesistor RT, inductance L4, polar capacitor C14, polar capacitor C15, pole
Property electric capacity C16, polar capacitor C17, polar capacitor C18, diode D7, diode D8, diode D9, and Zener diode
D10 forms.
During connection, the negative pole of polar capacitor C14 source electrode with field effect transistor MOS3 after resistance R22 is connected, positive pole with
The negative pole of polar capacitor C13 is connected.One end of critesistor RT is connected with the drain electrode of field effect transistor MOS, the other end and pole
The positive pole of property electric capacity C14 is connected.The positive pole of polar capacitor C15 positive pole with polar capacitor C14 after resistance R20 is connected,
Minus earth.
Wherein, the P pole of diode D8 is connected with the grid of field effect transistor MOS3, N pole after resistance R25 with audion
The base stage of VT7 is connected.One end of adjustable resistance R21 is connected with the negative pole of polar capacitor C14, and the other end is with diode D8's
N pole is connected.The drain electrode with field effect transistor MOS3 after inductance L4 of the positive pole of polar capacitor C16 is connected, negative pole and audion
The emitter stage of VT6 is connected.The P pole of diode D7 source electrode with field effect transistor MOS2 after resistance R23 is connected, and N pole is through electricity
It is connected with the positive pole of polar capacitor C16 after resistance R24.
Meanwhile, the positive pole of polar capacitor C17 is connected with the base stage of audion VT7, minus earth.The P pole of diode D9
After resistance R29, the negative pole with polar capacitor C17 is connected, and N pole colelctor electrode with audion VT7 after resistance R28 is connected.
The N pole of Zener diode D10 is connected with the N pole of diode D9, and P pole is connected with the drain electrode of field effect transistor MOS4.Polarity electricity
The positive pole colelctor electrode with audion VT6 after resistance R26 holding C18 is connected, negative pole after adjustable resistance R27 with audion
The colelctor electrode of VT7 is connected.
The negative pole of described polar capacitor C14 is also connected with the grid of field effect transistor MOS2；The base stage of described audion VT7
The also positive pole with polar capacitor C16 is connected, and its emitter stage is connected with the base stage of audion VT6；Described field effect transistor MOS4
Grid be connected with the positive pole of polar capacitor C18, its source ground；The N pole of described Zener diode D10 also with two-way switch
The b contact of S is connected.
As it is shown on figure 3, described voltage detecting circuit is by field effect transistor MOS5, field effect transistor MOS6, audion VT8, three poles
Pipe VT9, resistance R31, resistance R32, resistance R33, adjustable resistance R34, resistance R35, resistance R36, resistance R37, resistance R38, electricity
Resistance R39, resistance R40, resistance R41, resistance R42, polar capacitor C19, polar capacitor C20, polar capacitor C21, polar capacitor
C22, polar capacitor C23, polar capacitor C24, inductance L5, diode D11, diode D12, diode D13, and voltage stabilizing two pole
Pipe D14 forms.
During connection, the negative pole of polar capacitor C20 is connected with the base stage of audion VT8, positive pole after resistance R31 with non-thread
Property amplifying circuit is connected.The positive pole of polar capacitor C19 positive pole with polar capacitor C20 after resistance R33 is connected, and negative pole connects
Ground.The P pole of diode D11 positive pole with polar capacitor C20 after resistance R32 is connected, N pole after resistance R35 with audion
The colelctor electrode of VT8 is connected.The P pole of diode D12 emitter stage with audion VT8 after adjustable resistance R34 is connected, N pole
After resistance R38, the source electrode with field effect transistor MOS5 is connected.
Wherein, one end of resistance R39 is connected with the source electrode of field effect transistor MOS5, other end ground connection.Polar capacitor C21's
Positive pole is connected with the colelctor electrode of audion VT8, and negative pole grid with field effect transistor MOS5 after resistance R37 is connected.Polarity
The negative pole of electric capacity C22 emitter stage with audion VT9 after resistance R41 is connected, with the N of diode D11 after positive electrode resistance R36
Pole is connected.The drain electrode with field effect transistor MOS5 after inductance L5 of the P pole of diode D13 is connected, N pole after resistance R40 with
The source electrode of field effect transistor MOS5 is connected.
Meanwhile, the negative pole of polar capacitor C23 is connected with the grid of field effect transistor MOS6, positive pole and field effect transistor MOS5
Source electrode is connected.The positive pole of polar capacitor C24 is connected with the base stage of audion VT9, negative pole after resistance R42 with field effect transistor
The source electrode of MOS6 is connected.The P pole of Zener diode D14 is connected with the colelctor electrode of audion VT9, N pole after resistance R30 with
The non-same polarity of transformator T inductance coil is connected.The drain electrode of described field effect transistor MOS5 is connected with the negative pole of polar capacitor C22
Connect；The grounded drain of described field effect transistor MOS6.
During operation, the inductance L1 in this inverter, resistance R1, polar capacitor C1 define eraser, this eraser energy
Interference surging in output electric current is eliminated or suppresses, effectively raises the present invention suppression to the pulsation of output electric current
Ability, makes output electric current keep stable；And by field effect transistor MOS1 and the electronic component shape such as audion VT1 and adjustable resistance R9
The voltage that control chip U2 is exported by the booster circuit become is adjusted, and the voltage after this regulation is by audion VT2 and audion
The frequency of output electric current is carried out by the non-linear amplifying circuit that VT3 and the electronic component such as audion VT4 and audion VT5 are formed
Adjusting, the frequency making output electric current is more stable, higher；The operating frequency of transformator T is then defeated by non-linear amplifying circuit
Going out frequency to determine, rather than the output frequency of linear amplifier circuit is determined by adjustable resistance R15 the most again, regulation resistance R15 can
Suitably change the frequency of its work.Typically require that its frequency is identical with mains frequency, be 50Hz.
Wherein, the present invention also being provided with between the non-same polarity of non-linear amplifying circuit and transformator T inductance coil
Voltage detecting circuit energy, this circuit can effectively reduce Leakage Current and the damage of the voltage and current of non-linear amplifying circuit output
Power consumption stream, can effectively improve the power of the present invention；And the exception of voltage and current that non-linear amplifying circuit exports can be suppressed
Fluctuation, makes voltage and current keep stable, improves transformator T and can export stable voltage and current, thus improve this
Bright output voltage and the stability of electric current.
Meanwhile, circuit is also provided with the two-way switch S changing the duty of this inverter, when this switch
When being allocated to a point, the 12V voltage stabilization that accumulator J is exported by control chip U2 is 5V, as the running voltage of control chip U2；
Export 12V voltage after the regulation of this 5V voltage boosted circuit, meanwhile, this 12V voltage through audion VT2 and audion VT3 and
The frequency of voltage x current is amplified by the non-linear amplifying circuit that the electronic components such as audion VT4 and audion VT5 are formed, then
Being upgraded to 220V alternating current by transformator T is load supplying.When switching S and being allocated to b point, then switch S Yu a point disconnects, control chip
U2 power-off, control chip U2 is without output voltage, and boosting adjusts circuit and quits work, meanwhile, audion VT2, audion VT3, three
Pole pipe VT4, audion VT5 are turned off；Now, if transformator T secondary inductance coil-end accesses 220V civil power, then transformator T is just
The alternating voltage of 220V is reduced to 12V, by polar capacitor C12, polar capacitor C13 resistance after diode rectifier U1 rectification
The wave filter that R19 is formed is filtered the offer of backward accumulator J and fills wise man's voltage.
Wherein, the present invention is also provided with overvoltage protection between diode rectifier U1 rectification and wave filter and accumulator J
Circuit, the instant high-voltage of the DC voltage after filters filter can be eliminated or suppress, be effectively prevented by this circuit
Backend electronics element and accumulator J are damaged by high voltage, ensure that stability and the reliability of the present invention.
For instruction inversion boosting and charging both duties, two parts circuit uses green LED VD1 respectively
Instruction as output inversion boosting shows, red light emitting diodes VD2 is as charging instruction display, to show this partial circuit
Connect.For ensureing that this inverter reliably works, just can connect people's mains supply when two-way switch S is allocated to b point, otherwise will
Affect the normal work of the present invention.
The inversion boosting of the present invention can use same transformator T to complete with charging, can effectively reduce current loss,
Greatly improve the output of the present invention, make the load capacity of the present invention obtain good raising, saved cost, energy
Well meet people's requirement at energy-conservation aspect.
As it has been described above, just can well realize the present invention.
Claims (6)
1. charging based on an overvoltage crowbar voltage detecting type inverter, it is characterised in that mainly by controlling core
Sheet U2, transformator T, diode rectifier U1, two-way switch S, accumulator J, the overvoltage being connected with the b contact of two-way switch S
Protection circuit, positive pole is sequentially connected through resistance R1 a contact with two-way switch S after inductance L1, the polarity electricity of minus earth
Hold that a contact with two-way switch S after resistance R2, C1, P pole is connected, N pole is connected with the GND pin of control chip U2 and is followed by
B contact with two-way switch S after resistance R3, light emitting diode VD1, the P pole on ground is connected, the light emitting diode of N pole ground connection
VD2, negative pole is connected with overvoltage crowbar, positive pole cathode output end with diode rectifier U1 after resistance R19 is connected
The polar capacitor C13 connect, positive pole is connected with the cathode output end of diode rectifier U1, negative pole and diode rectifier U1
Cathode output end be connected after the polar capacitor C12 of ground connection, positive pole is connected with the Same Name of Ends of transformator T secondary inductance coil,
The polar capacitor C11 that negative pole is connected with the non-same polarity of transformator T secondary inductance coil, respectively with control chip U2's
Boosting that CHRG1 pin is connected with CHRG2 pin and PROG pin adjusts circuit, adjusts circuit and two-way respectively with boosting
The non-linear amplifying circuit that a contact of switch S and transformator T former limit inductance coil are connected, and input is with non-linear
Amplifying circuit is connected, the inspection of the outfan voltage that the non-same polarity of limit former with transformator T inductance coil is connected after resistance R30
Slowdown monitoring circuit forms；The junction point of described resistance R1 and inductance L1 is connected with the VCC pin of control chip U2；Described diode is whole
The tap of one of them input limit former with transformator T inductance coil of stream device U1 be connected after ground connection, its another input
The bar of lassoing a horse of limit former with transformator T inductance coil is connected；The positive pole of described accumulator J is connected with the control of two-way switch S,
Its minus earth.
A kind of charging voltage detecting type inverter based on overvoltage crowbar the most according to claim 1, it is special
Levy and be, described voltage detecting circuit by field effect transistor MOS5, field effect transistor MOS6, audion VT8, audion VT9, negative pole with
The polar capacitor C20 that the base stage of audion VT8 is connected, positive pole is connected with non-linear amplifying circuit after resistance R31, positive pole
After resistance R33 the positive pole with polar capacitor C20 be connected, polar capacitor C19, the P pole of minus earth after resistance R32 with pole
Diode D11, the P pole that the positive pole of property electric capacity C20 is connected, N pole colelctor electrode with audion VT8 after resistance R35 is connected
After adjustable resistance R34 the emitter stage with audion VT8 be connected, N pole after resistance R38 with the source electrode phase of field effect transistor MOS5
The diode D12 connected, one end is connected with the source electrode of field effect transistor MOS5, the resistance R39 of other end ground connection, positive pole and three poles
The polar capacitor C21 that the colelctor electrode of pipe VT8 is connected, negative pole is connected with the grid of field effect transistor MOS5 after resistance R37, negative
Pole emitter stage with audion VT9 after resistance R41 is connected, be connected with the N pole of diode D11 after positive electrode resistance R36
The drain electrode with field effect transistor MOS5 after inductance L5 of polar capacitor C22, P pole is connected, N pole after resistance R40 with field effect transistor
The diode D13 that the source electrode of MOS5 is connected, negative pole is connected with the grid of field effect transistor MOS6, positive pole and field effect transistor MOS5
The polar capacitor C23 that is connected of source electrode, positive pole is connected with the base stage of audion VT9, negative pole after resistance R42 with field effect
The polar capacitor C24 that the source electrode of pipe MOS6 is connected, and P pole is connected with the colelctor electrode of audion VT9, N pole is through resistance R30
The Zener diode D14 composition that non-same polarity with transformator T inductance coil is connected afterwards；The drain electrode of described field effect transistor MOS5
It is connected with the negative pole of polar capacitor C22；The grounded drain of described field effect transistor MOS6.
A kind of charging voltage detecting type inverter based on overvoltage crowbar the most according to claim 2, it is special
Levy and be, described overvoltage crowbar by field effect transistor MOS2, field effect transistor MOS3, field effect transistor MOS4, audion VT6, three
Pole pipe VT7, negative pole source electrode with field effect transistor MOS3 after resistance R22 is connected, positive pole is connected with the negative pole of polar capacitor C13
The polar capacitor C14 connect, one end is connected with the drain electrode of field effect transistor MOS, the other end is connected with the positive pole of polar capacitor C14
Critesistor RT, positive pole positive pole with polar capacitor C14 after resistance R20 is connected, the polar capacitor C15, P of minus earth
The diode D8 that pole is connected with the grid of field effect transistor MOS3, N pole base stage with audion VT7 after resistance R25 is connected,
The adjustable resistance R21 that one end is connected with the negative pole of polar capacitor C14, the other end is connected with the N pole of diode D8, positive pole warp
The polar capacitor that after inductance L4, the drain electrode with field effect transistor MOS3 is connected, negative pole is connected with the emitter stage of audion VT6
C16, P pole source electrode with field effect transistor MOS2 after resistance R23 is connected, N pole after resistance R24 with polar capacitor C16 just
The diode D7 that pole is connected, positive pole is connected with the base stage of audion VT7, polar capacitor C17, the P pole of minus earth is through electricity
Be connected with the negative pole of polar capacitor C17 after resistance R29, N pole colelctor electrode with audion VT7 after resistance R28 is connected two
Pole pipe D9, the Zener diode D10 that N pole is connected with the N pole of diode D9, P pole is connected with the drain electrode of field effect transistor MOS4,
And positive pole colelctor electrode with audion VT6 after resistance R26 is connected, negative pole after adjustable resistance R27 with audion VT7's
The polar capacitor C18 composition that colelctor electrode is connected；The negative pole of described polar capacitor C14 is also connected with the grid of field effect transistor MOS2
Connect；The base stage of described audion VT7 also positive pole with polar capacitor C16 is connected, the base stage phase of its emitter stage and audion VT6
Connect；The grid of described field effect transistor MOS4 is connected with the positive pole of polar capacitor C18, its source ground；Described voltage stabilizing two pole
The N pole of pipe D10 is also connected with the b contact of two-way switch S.
A kind of charging voltage detecting type inverter based on overvoltage crowbar the most according to claim 3, it is special
Levying and be, described boosting adjusts circuit and is connected with the drain electrode of field effect transistor MOS1 by field effect transistor MOS1, audion VT1, positive pole
Connect, polar capacitor C3, the P pole of minus earth grid with field effect transistor MOS1 after resistance R4 is connected, N pole is after resistance R5
The diode D1 being connected with the CHRG2 pin of control chip U2, positive pole is connected with the grid of field effect transistor MOS1, negative pole warp
The polar capacitor C4 being connected with the source electrode of field effect transistor MOS1 after resistance R8, negative pole is connected with the base stage of audion VT1, just
Polar capacitor C5, the P pole that pole is connected with the source electrode of field effect transistor MOS1 after inductance L2 and the CHRG1 pin of control chip U2
Be connected, diode D2 that N pole is connected with the colelctor electrode of audion VT1, and N pole after adjustable resistance R9 with audion
The diode D3 composition that the colelctor electrode of VT1 is connected, P pole is connected with the PROG pin of control chip U2 after resistance R6；Institute
State the negative pole of the polar capacitor C4 colelctor electrode also with audion VT1 to be connected；The grid of described field effect transistor MOS1 also with control
The VCC pin of chip U2 is connected；The emitter stage of described audion VT1 and the N pole of diode D1 are collectively forming boosting and adjust electricity
The outfan on road is also connected with non-linear amplifying circuit.
A kind of charging voltage detecting type inverter based on overvoltage crowbar the most according to claim 4, it is special
Levying and be, described non-linear amplifying circuit is by audion VT2, audion VT3, audion VT4, audion VT5, P pole and three poles
The Zener diode D4 that the emitter stage of pipe VT1 is connected, N pole base stage with audion VT3 after resistance R11 is connected, negative pole
The polar capacitor C7 that base stage with audion VT4 is connected after resistance R12, positive pole is connected with the emitter stage of audion VT3,
The diode that N pole is connected with the colelctor electrode of audion VT4, P pole colelctor electrode with audion VT3 after resistance R14 is connected
D6, negative pole is connected with the colelctor electrode of audion VT4, positive pole colelctor electrode with audion VT3 after resistance R16 is connected and is followed by
The polar capacitor C9 on ground, positive pole emitter stage with audion VT4 after resistance R13 is connected, negative pole after resistance R17 with transformation
The polar capacitor C10 that the Same Name of Ends of device T former limit inductance coil is connected, positive pole after resistance R10 with the colelctor electrode of audion VT2
Be connected, polar capacitor C8 that negative pole colelctor electrode with audion VT4 after adjustable resistance R15 is connected, one end and polarity electricity
Hold inductance L3, the N pole that negative pole is connected, the other end is connected of C8 and the base stage of audion VT5 with the colelctor electrode of audion VT4
Be connected, diode D5 that P pole is connected with the emitter stage of audion VT2, positive pole after resistance R7 with the current collection of audion VT2
The polar capacitor C6 that pole is connected, negative pole is connected with the colelctor electrode of audion VT5, and a contact of positive pole and two-way switch S
Be connected, polar capacitor C2 composition that negative pole colelctor electrode with audion VT5 after resistance R18 is connected；Described audion VT2
Base stage be connected with the N pole of diode D1；The grounded collector of described audion VT3；The emitter stage warp of described audion VT5
After resistance R31, the positive pole with polar capacitor C20 is connected.
A kind of charging voltage detecting type inverter based on overvoltage crowbar the most according to claim 5, it is special
Levying and be, described control chip U2 is the integrated chip of SX5058.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668951.5A CN106253426A (en) | 2016-08-15 | 2016-08-15 | A kind of charging voltage detecting type inverter based on overvoltage crowbar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668951.5A CN106253426A (en) | 2016-08-15 | 2016-08-15 | A kind of charging voltage detecting type inverter based on overvoltage crowbar |
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Application publication date: 20161221 |