CN106208760A - A kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike - Google Patents
A kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike Download PDFInfo
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- CN106208760A CN106208760A CN201610645089.6A CN201610645089A CN106208760A CN 106208760 A CN106208760 A CN 106208760A CN 201610645089 A CN201610645089 A CN 201610645089A CN 106208760 A CN106208760 A CN 106208760A
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc 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
- H02M7/217—Conversion of ac power input into dc 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
-
- 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
- H02M1/15—Arrangements for reducing ripples from dc input or output using active elements
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike, it is characterized in that, main by control chip U2, transformator T1, transformator T2, diode rectifier U1, current loss suppression circuit, inverse-excitation type change-over circuit, ripple peak restrained circuit, and the high impedance voltage output circuit being connected with Same Name of Ends and the non-same polarity of transformator T2 secondary inductance coil respectively etc. form.The current loss that the present invention can effectively reduce the conduction loss of electric current and circuit is caused, and the present invention can also pulse-width be adjusted, there is saturation in the magnetic intensity that can effectively avoid the magnet assembly of the present invention, ensure that the present invention can effectively reduce self loss to electric current, can effectively improve outputting current steadily of the present invention.
Description
Technical field
The present invention relates to field of aluminum electrolysis, specifically refer to a kind of current loss and the double portable switch of suppressive of ripple spike
Power supply.
Background technology
The rise of portable Switching Power Supply and develop into modern electronics industry and be filled with one fresh blood, and through long
The portable Switching Power Supply of Time evolution become people life in use electronic product must obligato ingredient, thus,
The performance of portable Switching Power Supply the most stably becomes for the most stable important factor of the duty of electronic product.Along with
The development of electronic product, people couple, portable Switching Power Supply is also got in the requirement of the aspects such as performance, reliability, safety
Come the highest.But, existing portable Switching Power Supply exist self to the too high problem of current loss, and cause load capacity
Low；Further, existing portable Switching Power Supply there is also the problem that output electric current is unstable, thus can not meet wanting of people
Ask.
Therefore it provides one can reduce current loss, the portable Switching Power Supply that can export again stable electric current becomes
It it is the task of top priority.
Summary of the invention
It is an object of the invention to overcome existing portable Switching Power Supply too high to the loss of electric current because there is self, defeated
Go out the defect that electric current is unstable, it is provided that a kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike.
The purpose of the present invention realizes by following technical scheme: double suppressive is portable opens for a kind of current loss and ripple spike
Close power supply, mainly by control chip U2, transformator T1, transformator T2, diode rectifier U1, limit former with transformator T2 inductor wire
The current loss suppression circuit that is connected of Same Name of Ends of circle, P pole after resistance R1 with the cathode output end of diode rectifier U1
Be connected, Zener diode D1 that N pole is connected with the VIN pin of control chip U2, positive pole is with diode rectifier U1 just
The polar capacitor C1 of ground connection, one end and polarity after pole is connected, negative pole is connected with the cathode output end of diode rectifier U1
The resistance R2 that the positive pole of electric capacity C1 is connected, the other end is connected with the negative pole of polar capacitor C1, is serially connected in diode rectifier
Switch S, N pole between one of them input and the Same Name of Ends of transformator T1 secondary inductance coil of U1 suppresses with current loss
The diode D5 that circuit is connected, P pole is connected with the VOUT pin of control chip U2 after resistance R11, positive pole is through resistance R12
Be connected with the P pole of diode D5 afterwards, the polar capacitor C6 of minus earth, be serially connected in the cathode output end of diode rectifier U1
With the ripple peak restrained circuit of the VC pin positive pole of control chip U2, ON/OF pin and FB with control chip U2 manage respectively
The inverse-excitation type change-over circuit that foot and GND pin are connected, and respectively with the Same Name of Ends of transformator T2 secondary inductance coil and
The high impedance voltage output circuit composition that non-same polarity is connected；The non-same polarity of the former limit inductance coil of described transformator T2 connects
Ground；The LX pin of described control chip U2 is connected with BST pin；Another input of described diode rectifier U1 and change
The non-same polarity of depressor T1 secondary inductance coil is connected.
Described current loss suppression circuit is by field effect transistor MOS2, audion VT8, audion VT9, and positive pole is through resistance R31
The polar capacitor C15 that emitter stage with audion VT8 is connected afterwards, negative pole is connected with the N of diode D5, positive pole is through resistance
After R30 the negative pole with polar capacitor C15 be connected, the positive pole phase of polar capacitor C16, the P pole of minus earth and polar capacitor C15
Connect, diode D12 that N pole base stage with audion VT8 after resistance R32 is connected, positive pole after resistance R33 with diode
The N pole of D12 is connected, negative pole colelctor electrode with audion VT9 after resistance R34 is connected polar capacitor C17, P pole and pole
The diode D13 that positive pole is connected, N pole is connected with the colelctor electrode of audion VT8, the P pole of property electric capacity C17 and polar capacitor
Diode D14, the N pole that the negative pole of C17 is connected, N pole is connected with the colelctor electrode of audion VT8 and the source of field effect transistor MOS2
The diode D15 that pole is connected, P pole emitter stage with audion VT8 after inductance L4 is connected, the P of one end and diode D15
The grid of the adjustable resistance R36 that pole is connected, the other end is connected with the colelctor electrode of audion VT8, positive pole and field effect transistor MOS2
The polar capacitor C18 that pole is connected, negative pole colelctor electrode with audion VT8 after resistance R37 is connected, one end and audion
The colelctor electrode of VT8 is connected, the resistance R38 of other end ground connection, negative pole base stage with audion VT9 after resistance R35 is connected,
The polar capacitor C19 that positive pole is sequentially connected with the drain electrode of field effect transistor MOS2 after adjustable resistance R39 through resistance R40, and
Positive pole is connected with the drain electrode of field effect transistor MOS2, the polar capacitor C20 of minus earth composition；The current collection of described audion VT9
Pole ground connection；The Same Name of Ends of the drain electrode of described field effect transistor MOS2 also former with transformator T2 limit inductance coil is connected.
Further, described ripple peak restrained electricity routing amplifier P, audion VT5, audion VT6, audion VT7,
N pole positive pole with amplifier P after resistance R23 is connected, P pole is connected with the cathode output end of diode rectifier U1 two
Pole pipe D10, negative pole is connected with the emitter stage of audion VT5, positive pole N with diode D10 after critesistor RT is extremely connected
Polar capacitor C10, the P pole connect colelctor electrode with audion VT5 after resistance R20 is connected, N pole after resistance R22 with amplification
The diode D9 that the outfan of device P is connected, negative pole is connected with the base stage of audion VT5, positive pole after resistance R21 with two poles
Polar capacitor C11, the P pole that the N pole of pipe D9 is connected is connected with the emitter stage of audion VT7, the diode D11 of N pole ground connection,
Positive pole negative pole with amplifier P after adjustable resistance R24 is connected, negative pole N with diode D11 after resistance R27 is extremely connected
The polar capacitor C12 connect, positive pole is connected with the base stage of audion VT7, negative pole after resistance R25 with adjustable resistance R24 can
Adjusting the polar capacitor C13 that is connected of end, one end is connected with the colelctor electrode of audion VT7, the other end and the current collection of audion VT6
Pole be connected after the adjustable resistance R29 of ground connection, one end is connected with the emitter stage of audion VT6, the other end is negative with amplifier P's
The inductance L3 that pole is connected, and positive pole base stage with audion VT6 after resistance R28 is connected, negative pole after resistance R26 with
The polar capacitor C14 composition that the outfan of amplifier P is connected；The base stage of described audion VT5 also with the positive pole phase of amplifier P
Connect；The negative pole of described polar capacitor C14 be also connected with the VC pin of control chip U2 after ground connection.
Described inverse-excitation type change-over circuit is connected with the colelctor electrode of audion VT1 by audion VT1, audion VT2, negative pole
Connect, polar capacitor C3, P pole that positive pole is connected with the ON/OF pin of control chip U2 after resistance R4 is with polar capacitor C3's
The diode D2 that positive pole is connected, N pole is connected with the colelctor electrode of audion VT1, positive pole after resistance R3 with the P of diode D2
Pole is connected, the polar capacitor C2 of minus earth, and one end is connected with the positive pole of polar capacitor C2, the other end and audion VT2
The inductance L1 that is connected of colelctor electrode, positive pole colelctor electrode with audion VT2 after resistance R6 is connected, negative pole is after resistance R8
Polar capacitor C5, the N pole being connected with the emitter stage of audion VT2 base stage with audion VT1 after adjustable resistance R5 is connected
Connect, diode D3 that P negative pole with polar capacitor C5 after resistance R7 is connected, negative pole is connected with the emitter stage of audion VT1
Connect, polar capacitor C4 that positive pole is connected with the base stage of audion VT2, one end is connected with the negative pole of polar capacitor C4, another
The resistance R9 that is connected with the positive pole of polar capacitor C4 of end, and P pole is connected with the negative pole of polar capacitor C5, N pole is through adjustable
The diode D4 composition that after resistance R10, emitter stage with audion VT1 is connected；The N pole of described diode D3 also with audion
The colelctor electrode of VT2 is connected；The adjustable end of described adjustable resistance R10 is connected with the FB pin of control chip U2；Described two poles
The N pole of pipe D4 be connected with the GND pin of control chip U2 after ground connection.
Described high impedance voltage output circuit is by field effect transistor MOS1, audion VT3, audion VT4, positive pole and transformator
The polarity that the non-same polarity of T2 secondary inductance coil is connected, negative pole emitter stage with audion VT3 after resistance R14 is connected
Electric capacity C7, P pole negative pole with polar capacitor C7 after resistance R13 is connected, N pole is connected with the emitter stage of audion VT3
Diode D6, P pole is connected with the negative pole of polar capacitor C7, N pole base stage with audion VT3 after resistance R16 is connected
Diode D7, positive pole is connected with the Same Name of Ends of transformator T2 secondary inductance coil, the drain electrode phase of negative pole and field effect transistor MOS1
The polar capacitor C8 of ground connection after connection, positive pole emitter stage with audion VT3 after resistance R15 is connected, negative pole is through resistance R17
The polar capacitor C9 that colelctor electrode with audion VT3 is connected afterwards, one end is connected with the negative pole of polar capacitor C9, the other end with
The adjustable resistance R18 that the emitter stage of audion VT4 is connected, and P pole base stage with audion VT4 after resistance R19 is connected
Connect, diode D8 that N pole is connected with the grid of field effect transistor MOS1 after inductance L2 composition；The grid of described field effect transistor MOS1
Pole also has the colelctor electrode of audion VT4 to be connected, its source electrode is connected with the colelctor electrode of audion VT3；The N of described diode D8
The grid of pole and field effect transistor MOS1 is collectively forming the outfan of high impedance voltage output circuit.
For the practical effect of the present invention, described process chip U2 the most preferentially have employed the integrated chip of MAX5035
Realize.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) current loss that the present invention can effectively reduce the conduction loss of electric current and circuit is caused, and the present invention
Pulse-width can also be adjusted, can effectively avoid the magnetic intensity of the magnet assembly of the present invention that saturation occurs, from
And ensure that the present invention can effectively reduce self loss to electric current, can effectively improve load capacity of the present invention, well
Meet the requirement of people.
(2) power consumption of the own loss time present invention can effectively reduce stable state, and can be high to moment when starting
Electric current suppresses, and effectively reduces current loss during startup, ensures that the present invention can reduce self to electric current
Loss.
(3) harmonic wave in input voltage can be eliminated or suppress by the present invention, and can be to wave produced by the present invention self
Energising pressure and wave galvanization suppress, thus improve the present invention and export the stability of electric current.
(4) unusual fluctuations of output electric current can be suppressed by the present invention, makes the intensity of output electric current keep stable, thus
Improve the present invention and export the stability of electric current.
(5) the process chip U2 of the present invention the most preferentially have employed the integrated chip of MAX5035 and realizes, this chip and periphery electricity
Road combines, and can effectively guarantee that the present invention reduces self reliability to current loss.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the ripple peak restrained circuit of the present invention.
Fig. 3 is the electrical block diagram of the current loss suppression 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 T1, transformator T2, diode rectifier U1, electricity
Resistance R1, resistance R2, resistance R11, resistance R12, switch S, polar capacitor C1, polar capacitor C6, Zener diode D1, diode
D5, current loss suppression circuit, ripple peak restrained circuit, inverse-excitation type change-over circuit, and high impedance voltage output circuit group
Become.
During connection, the Same Name of Ends of current loss suppression circuit limit former with transformator T2 inductance coil is connected.Voltage stabilizing two pole
The P pole of pipe D1 cathode output end with diode rectifier U1 after resistance R1 is connected, the VIN pipe of N pole and control chip U2
Foot is connected.The positive pole of polar capacitor C1 is connected with the positive pole of diode rectifier U1, and negative pole is with diode rectifier U1's
Cathode output end be connected after ground connection.One end of resistance R2 is connected with the positive pole of polar capacitor C1, the other end and polar capacitor
The negative pole of C1 is connected.
Meanwhile, switch S is serially connected in one of them input and the transformator T1 secondary inductance coil of diode rectifier U1
Same Name of Ends between.The N pole of diode D5 is connected with current loss suppression circuit, P pole after resistance R11 with control chip U2
VOUT pin be connected.The positive pole of polar capacitor C6 P pole with diode D5 after resistance R12 is connected, minus earth.Ripple
Stricture of vagina peak restrained circuit is serially connected in the cathode output end of diode rectifier U1 and the VC pin positive pole of control chip U2.Inverse-excitation type
Change-over circuit is connected with the ON/OF pin of control chip U2 and FB pin and GND pin respectively.High impedance voltage output electricity
Road is connected with Same Name of Ends and the non-same polarity of transformator T2 secondary inductance coil respectively.
The non-same polarity ground connection of the former limit inductance coil of described transformator T2；The LX pin of described control chip U2 and BST
Pin is connected；The non-same polarity phase of another input of described diode rectifier U1 and transformator T1 secondary inductance coil
Connect.During enforcement, the Same Name of Ends of described transformator T1 former limit inductance coil and non-same polarity are collectively forming the input of the present invention
End is also connected with civil power.For the practical effect of the present invention, described process chip U2 the most preferentially have employed MAX5035
Integrated chip realizes.
Further, described inverse-excitation type change-over circuit is by audion VT1, audion VT2, resistance R3, resistance R4, adjustable electric
Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, adjustable resistance R10, polar capacitor C2, polar capacitor C3, polar capacitor
C4, polar capacitor C5, inductance L1, diode D2, diode D3, and diode D4 form.
During connection, the negative pole of polar capacitor C3 is connected with the colelctor electrode of audion VT1, positive pole after resistance R4 with control
The ON/OF pin of chip U2 is connected.The P pole of diode D2 is connected with the positive pole of polar capacitor C3, N pole and audion VT1
Colelctor electrode be connected.The positive pole of polar capacitor C2 P pole with diode D2 after resistance R3 is connected, minus earth.Inductance
One end of L1 is connected with the positive pole of polar capacitor C2, and the other end is connected with the colelctor electrode of audion VT2.
Wherein, the positive pole of polar capacitor C5 colelctor electrode with audion VT2 after resistance R6 is connected, and negative pole is through resistance R8
Emitter stage with audion VT2 is connected afterwards.The N pole of diode D3 base stage with audion VT1 after adjustable resistance R5 is connected
Connecing, P negative pole with polar capacitor C5 after resistance R7 is connected.
Meanwhile, the negative pole of polar capacitor C4 is connected with the emitter stage of audion VT1, positive pole and the base stage of audion VT2
It is connected.One end of resistance R9 is connected with the negative pole of polar capacitor C4, and the other end is connected with the positive pole of polar capacitor C4.Two
The P pole of pole pipe D4 is connected with the negative pole of polar capacitor C5, and N pole emitter stage with audion VT1 after adjustable resistance R10 is connected
Connect.
The N pole of described diode D3 also colelctor electrode with audion VT2 is connected；The adjustable end of described adjustable resistance R10
It is connected with the FB pin of control chip U2；The N pole of described diode D4 is connected with the GND pin of control chip U2 and is followed by
Ground.
Further, described high impedance voltage output circuit by field effect transistor MOS1, audion VT3, audion VT4,
Resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, adjustable resistance R18, resistance R19, inductance L2, polar capacitor
C7, polar capacitor C8, polar capacitor C9, diode D6, diode D7, and diode D8 form.
During connection, the positive pole of polar capacitor C7 is connected with the non-same polarity of transformator T2 secondary inductance coil, negative pole warp
After resistance R14, the emitter stage with audion VT3 is connected.The P pole of diode D6 after resistance R13 with the negative pole of polar capacitor C7
Being connected, N pole is connected with the emitter stage of audion VT3.The P pole of diode D7 is connected with the negative pole of polar capacitor C7, N pole
After resistance R16, the base stage with audion VT3 is connected.The positive pole of polar capacitor C8 is same with transformator T2 secondary inductance coil
Name end be connected, negative pole be connected with the drain electrode of field effect transistor MOS1 after ground connection.
Meanwhile, the positive pole of polar capacitor C9 emitter stage with audion VT3 after resistance R15 is connected, and negative pole is through resistance
After R17, the colelctor electrode with audion VT3 is connected.One end of adjustable resistance R18 is connected with the negative pole of polar capacitor C9, another
End is connected with the emitter stage of audion VT4.The P pole of diode D8 base stage with audion VT4 after resistance R19 is connected, N
Pole grid with field effect transistor MOS1 after inductance L2 is connected.
The grid of described field effect transistor MOS1 also has the colelctor electrode of audion VT4 to be connected, and its source electrode is with audion VT3's
Colelctor electrode is connected；The N pole of described diode D8 and the grid of field effect transistor MOS1 are collectively forming high impedance voltage output circuit
Outfan.During enforcement, the outfan of this high impedance voltage output circuit is then connected with electronic product.
As in figure 2 it is shown, described ripple peak restrained electricity routing amplifier P, audion VT5, audion VT6, audion
VT7, resistance R20, resistance R21, resistance R22, resistance R23, adjustable resistance R24, resistance R25, resistance R26, resistance R27, resistance
R28, adjustable resistance R29, critesistor RT, inductance L3, polar capacitor C10, polar capacitor C11, polar capacitor C12, polarity electricity
Hold C13, polar capacitor C14, diode D9, diode D10, and diode D11 composition.
During connection, the N pole of diode D10 positive pole with amplifier P after resistance R23 is connected, P pole and diode rectification
The cathode output end of device U1 is connected.The negative pole of polar capacitor C10 is connected with the emitter stage of audion VT5, and positive pole is through temperature-sensitive
After resistance RT, the N pole with diode D10 is connected.The P pole of diode D9 after resistance R20 with the colelctor electrode phase of audion VT5
Connecting, N pole outfan with amplifier P after resistance R22 is connected.
Wherein, the negative pole of polar capacitor C11 is connected with the base stage of audion VT5, positive pole after resistance R21 with diode
The N pole of D9 is connected.The P pole of diode D11 is connected with the emitter stage of audion VT7, N pole ground connection.Polar capacitor C12 is just
Pole negative pole with amplifier P after adjustable resistance R24 is connected, and negative pole N pole with diode D11 after resistance R27 is connected.
The positive pole of polar capacitor C13 is connected with the base stage of audion VT7, negative pole after resistance R25 with the adjustable end of adjustable resistance R24
It is connected.
Meanwhile, one end of adjustable resistance R29 is connected with the colelctor electrode of audion VT7, the other end and the collection of audion VT6
Electrode be connected after ground connection.One end of inductance L3 is connected with the emitter stage of audion VT6, the other end and the negative pole of amplifier P
It is connected.The positive pole of polar capacitor C14 base stage with audion VT6 after resistance R28 is connected, negative pole after resistance R26 with
The outfan of amplifier P is connected.The base stage of described audion VT5 also positive pole with amplifier P is connected；Described polar capacitor
The negative pole of C14 be also connected with the VC pin of control chip U2 after ground connection.
As it is shown on figure 3, described current loss suppression circuit is by field effect transistor MOS2, audion VT8, audion VT9, resistance
R30, resistance R31, resistance R32, resistance R33, resistance R34, resistance R35, adjustable resistance R36, resistance R37, resistance R38, adjustable
Resistance R39, resistance R40, polar capacitor C15, polar capacitor C16, polar capacitor C17, polar capacitor C18, polar capacitor C19,
Polar capacitor C20, inductance L4, diode D12, diode D13, diode D14, and diode D15 form.
During connection, the positive pole of polar capacitor C15 emitter stage with audion VT8 after resistance R31 is connected, negative pole and two
The N of pole pipe D5 is connected.The positive pole of polar capacitor C16 negative pole with polar capacitor C15 after resistance R30 is connected, and negative pole connects
Ground.The P pole of diode D12 is connected with the positive pole of polar capacitor C15, N pole after resistance R32 with the base stage phase of audion VT8
Connect.The positive pole of polar capacitor C17 N pole with diode D12 after resistance R33 is connected, negative pole after resistance R34 with three poles
The colelctor electrode of pipe VT9 is connected.
Wherein, the P pole of diode D13 is connected with the positive pole of polar capacitor C17, the colelctor electrode phase of N pole and audion VT8
Connect.The P pole of diode D14 is connected with the negative pole of polar capacitor C17, and N pole is connected with the colelctor electrode of audion VT8.Two
The N pole of pole pipe D15 is connected with the source electrode of field effect transistor MOS2, and P pole emitter stage with audion VT8 after inductance L4 is connected
Connect.One end of adjustable resistance R36 is connected with the P pole of diode D15, and the other end is connected with the colelctor electrode of audion VT8.Pole
The property positive pole of electric capacity C18 is connected with the grid of field effect transistor MOS2, negative pole after resistance R37 with the colelctor electrode of audion VT8
It is connected.
Meanwhile, one end of resistance R38 is connected with the colelctor electrode of audion VT8, other end ground connection.Polar capacitor C19's
Negative pole base stage with audion VT9 after resistance R35 is connected, and positive pole is sequentially imitated with field after resistance R40 and adjustable resistance R39
Should the drain electrode of pipe MOS2 be connected.The positive pole of polar capacitor C20 is connected with the drain electrode of field effect transistor MOS2, minus earth.Institute
State the grounded collector of audion VT9；The drain electrode of described field effect transistor MOS2 also former with transformator T2 limit inductance coil of the same name
End is connected.During enforcement, resistance R30 in described current loss suppression circuit～resistance R35 all uses the resistance of 5 Ω, adjustable
Resistance R36 and adjustable resistance R39 then can regulate according to the value of produced high electric current when starting accordingly, makes circuit to electricity
The loss of stream is preferably minimized.
During operation, the inverse-excitation type change-over circuit of the present invention can effectively reduce the conduction loss of electric current and circuit caused
Current loss, and this circuit can also pulse-width be adjusted, and can effectively avoid the magnetic of the magnet assembly of the present invention
There is saturation in intensity, ensures that the present invention can effectively reduce self loss to electric current, is effectively improved the present invention
Load capacity.Meanwhile, the unusual fluctuations of output electric current can be suppressed by the high impedance voltage output circuit of the present invention, makes defeated
The intensity going out electric current keeps stable, thus improves the present invention and export the stability of electric current, well meets the requirement of people.Its
In, the power consumption of the own loss time current loss suppression circuit of the present invention can effectively reduce stable state, and can be to startup
Time instantaneous high current suppress, effectively reduce current loss during startup, ensure that the present invention can reduce from
The body loss to electric current.
Meanwhile, harmonic wave in input voltage can be eliminated or suppress by the ripple peak restrained circuit of the present invention, and can be right
Wave energising pressure produced by the present invention self and wave galvanization suppress.Wherein, the process chip U2 of the present invention the most preferentially adopts
Realize with the integrated chip of the MAX5035 with overvoltage protection, overcurrent protection and steady performance, this chip and periphery electricity
Road combines, and can effectively guarantee that the present invention reduces self reliability to current loss.
As it has been described above, just can well realize the present invention.
Claims (6)
1. a current loss and the double portable Switching Power Supply of suppressive of ripple spike, it is characterised in that main by control chip
U2, transformator T1, transformator T2, diode rectifier U1, the electricity that the Same Name of Ends of limit former with transformator T2 inductance coil is connected
Stream loss suppression circuit, P pole cathode output end with diode rectifier U1 after resistance R1 is connected, N pole and control chip
The Zener diode D1 that the VIN pin of U2 is connected, positive pole is connected with the positive pole of diode rectifier U1, negative pole and diode
The cathode output end of commutator U1 be connected after the polar capacitor C1 of ground connection, one end is connected with the positive pole of polar capacitor C1, separately
The resistance R2 that one end is connected with the negative pole of polar capacitor C1, is serially connected in one of them input and the change of diode rectifier U1
Switch S, N pole between the Same Name of Ends of depressor T1 secondary inductance coil is connected with current loss suppression circuit, P pole is through resistance
The diode D5 being connected with the VOUT pin of control chip U2 after R11, positive pole after resistance R12 with the P pole phase of diode D5
Connect, the polar capacitor C6 of minus earth, the VC of the cathode output end and control chip U2 that are serially connected in diode rectifier U1 manage
The ripple peak restrained circuit of foot positive pole, is connected with the ON/OF pin of control chip U2 and FB pin and GND pin respectively
Inverse-excitation type change-over circuit, and the high resistant being connected with Same Name of Ends and the non-same polarity of transformator T2 secondary inductance coil respectively
Reactance voltage output circuit forms；The non-same polarity ground connection of the former limit inductance coil of described transformator T2；Described control chip U2's
LX pin is connected with BST pin；Another input of described diode rectifier U1 and transformator T1 secondary inductance coil
Non-same polarity be connected.
A kind of current loss the most according to claim 1 and the double portable Switching Power Supply of suppressive of ripple spike, its feature
Be, described current loss suppression circuit by field effect transistor MOS2, audion VT8, audion VT9, positive pole after resistance R31 with
The polar capacitor C15 that the emitter stage of audion VT8 is connected, negative pole is connected with the N of diode D5, positive pole is after resistance R30
Be connected with the negative pole of polar capacitor C15, polar capacitor C16, the P pole of minus earth is connected with the positive pole of polar capacitor C15,
The diode D12 that N pole base stage with audion VT8 after resistance R32 is connected, positive pole after resistance R33 with diode D12's
N pole is connected, negative pole colelctor electrode with audion VT9 after resistance R34 is connected polar capacitor C17, P pole and polar capacitor
Diode D13, the P pole that the positive pole of C17 is connected, N pole is connected with the colelctor electrode of audion VT8 is negative with polar capacitor C17's
Diode D14, the N pole that pole is connected, N pole is connected with the colelctor electrode of audion VT8 is connected with the source electrode of field effect transistor MOS2
Connect, diode D15 that P pole emitter stage with audion VT8 after inductance L4 is connected, one end is extremely connected with the P of diode D15
Connect, adjustable resistance R36 that the other end is connected with the colelctor electrode of audion VT8, positive pole is connected with the grid of field effect transistor MOS2
Connect, polar capacitor C18 that negative pole colelctor electrode with audion VT8 after resistance R37 is connected, the collection of one end and audion VT8
Electrode is connected, the resistance R38 of other end ground connection, and negative pole is connected with the base stage of audion VT9 after resistance R35, positive pole is suitable
The secondary polar capacitor C19 being connected with the drain electrode of field effect transistor MOS2 after adjustable resistance R39 through resistance R40, and positive pole with
The drain electrode of field effect transistor MOS2 is connected, the polar capacitor C20 of minus earth composition；The grounded collector of described audion VT9；
The Same Name of Ends of the drain electrode of described field effect transistor MOS2 also former with transformator T2 limit inductance coil is connected.
A kind of current loss the most according to claim 2 and the double portable Switching Power Supply of suppressive of ripple spike, its feature
Being, described ripple peak restrained electricity routing amplifier P, audion VT5, audion VT6, audion VT7, N pole is through resistance R23
The diode D10 that positive pole with amplifier P is connected afterwards, P pole is connected with the cathode output end of diode rectifier U1, negative pole
Be connected with the emitter stage of audion VT5, polar capacitor that positive pole is connected with the N pole of diode D10 after critesistor RT
C10, P pole colelctor electrode with audion VT5 after resistance R20 is connected, N pole after resistance R22 with the outfan phase of amplifier P
The diode D9 connected, negative pole is connected with the base stage of audion VT5, positive pole N with diode D9 after resistance R21 is extremely connected
Polar capacitor C11, the P pole connect is connected with the emitter stage of audion VT7, the diode D11 of N pole ground connection, and positive pole is through adjustable electric
Be connected with the negative pole of amplifier P after resistance R24, polar capacitor that negative pole is connected with the N pole of diode D11 after resistance R27
C12, positive pole is connected with the base stage of audion VT7, negative pole is connected with the adjustable end of adjustable resistance R24 after resistance R25
Polar capacitor C13, one end is connected with the colelctor electrode of audion VT7, the other end is connected with the colelctor electrode of audion VT6 is followed by
The adjustable resistance R29 on ground, the electricity that one end is connected with the emitter stage of audion VT6, the other end is connected with the negative pole of amplifier P
Sense L3, and positive pole is connected with the base stage of audion VT6 after resistance R28, negative pole defeated with amplifier P after resistance R26
Go out the polar capacitor C14 composition that end is connected；The base stage of described audion VT5 also positive pole with amplifier P is connected；Described pole
The negative pole of property electric capacity C14 be also connected with the VC pin of control chip U2 after ground connection.
A kind of current loss the most according to claim 3 and the double portable Switching Power Supply of suppressive of ripple spike, its feature
Being, described inverse-excitation type change-over circuit is connected with the colelctor electrode of audion VT1, just by audion VT1, audion VT2, negative pole
The positive pole phase of polar capacitor C3, the P pole that pole is connected with the ON/OF pin of control chip U2 after resistance R4 and polar capacitor C3
Connect, the diode D2 that is connected with the colelctor electrode of audion VT1 of N pole, positive pole P with diode D2 after resistance R3 are extremely connected
Connect, the polar capacitor C2 of minus earth, one end is connected with the positive pole of polar capacitor C2, the current collection of the other end and audion VT2
The inductance L1 that pole is connected, positive pole colelctor electrode with audion VT2 after resistance R6 is connected, negative pole after resistance R8 with three poles
Polar capacitor C5, the N pole that the emitter stage of pipe VT2 is connected base stage with audion VT1 after adjustable resistance R5 is connected, P warp
The diode D3 that after resistance R7, negative pole with polar capacitor C5 is connected, negative pole is connected with the emitter stage of audion VT1, positive pole
The polar capacitor C4 being connected with the base stage of audion VT2, one end is connected with the negative pole of polar capacitor C4, the other end and polarity
The resistance R9 that the positive pole of electric capacity C4 is connected, and P pole is connected with the negative pole of polar capacitor C5, N pole is after adjustable resistance R10
The diode D4 composition being connected with the emitter stage of audion VT1；The N pole of described diode D3 also with the current collection of audion VT2
Pole is connected；The adjustable end of described adjustable resistance R10 is connected with the FB pin of control chip U2；The N pole of described diode D4
Ground connection after being connected with the GND pin of control chip U2.
A kind of current loss the most according to claim 4 and the double portable Switching Power Supply of suppressive of ripple spike, its feature
Being, described high impedance voltage output circuit is by field effect transistor MOS1, audion VT3, audion VT4, positive pole and transformator T2
The polarity electricity that the non-same polarity of secondary inductance coil is connected, negative pole emitter stage with audion VT3 after resistance R14 is connected
Hold that C7, P pole negative pole with polar capacitor C7 after resistance R13 is connected, N pole is connected with the emitter stage of audion VT3 two
Pole pipe D6, P pole is connected with the negative pole of polar capacitor C7, N pole base stage with audion VT3 after resistance R16 is connected two
Pole pipe D7, positive pole is connected with the Same Name of Ends of transformator T2 secondary inductance coil, negative pole is connected with the drain electrode of field effect transistor MOS1
Meeting the polar capacitor C8 of rear ground connection, positive pole emitter stage with audion VT3 after resistance R15 is connected, negative pole is after resistance R17
The polar capacitor C9 being connected with the colelctor electrode of audion VT3, one end is connected with the negative pole of polar capacitor C9, the other end and three
The adjustable resistance R18 that the emitter stage of pole pipe VT4 is connected, and P pole base stage with audion VT4 after resistance R19 is connected,
The diode D8 composition that N pole is connected with the grid of field effect transistor MOS1 after inductance L2；The grid of described field effect transistor MOS1
The colelctor electrode also having audion VT4 is connected, its source electrode is connected with the colelctor electrode of audion VT3；The N pole of described diode D8
With the outfan that the grid of field effect transistor MOS1 is collectively forming high impedance voltage output circuit.
A kind of current loss the most according to claim 5 and the double portable Switching Power Supply of suppressive of ripple spike, its feature
Being, described control chip U2 is the integrated chip of MAX5035.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645089.6A CN106208760A (en) | 2016-08-08 | 2016-08-08 | A kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645089.6A CN106208760A (en) | 2016-08-08 | 2016-08-08 | A kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208760A true CN106208760A (en) | 2016-12-07 |
Family
ID=57514668
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610645089.6A Pending CN106208760A (en) | 2016-08-08 | 2016-08-08 | A kind of current loss and the double portable Switching Power Supply of suppressive of ripple spike |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208760A (en) |
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2016
- 2016-08-08 CN CN201610645089.6A patent/CN106208760A/en active Pending
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Application publication date: 20161207 |
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