CN108258907A - Efficient switch convertor device and method - Google Patents
Efficient switch convertor device and method Download PDFInfo
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- CN108258907A CN108258907A CN201611226929.1A CN201611226929A CN108258907A CN 108258907 A CN108258907 A CN 108258907A CN 201611226929 A CN201611226929 A CN 201611226929A CN 108258907 A CN108258907 A CN 108258907A
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
-
- 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
-
- 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
-
- 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
- H02M7/4815—Resonant converters
- H02M7/4818—Resonant converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits
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- 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)
- Dc-Dc Converters (AREA)
Abstract
A kind of efficient switch convertor device and method.Traditional switch converters are due to efficiency and power factor is relatively low cannot meet environmentally protective and efficient requirement.A kind of efficient switch transform method, its accessory power supply uses the topological structure of inverse-excitation type, chip VIPER22A is the switching device of current control mode pulsewidth modulation, integrate switching tube and control the tool of chip compared with wide input voltage range, compared with low standby power loss, the characteristics of high voltage starts, and with overcurrent, overvoltage, the very complete defencive functions such as under-voltage and excess temperature, its booster converter control chip is UCC28019, using the booster circuit of PWM, built-in multiplier can be controlled into the sampling of line output voltage, the sampling control of input voltage, input current synchronizes the control method of input voltage, power factor is up to 0.995, total harmonic distortion factor is less than 3%, the present application relates to power transmission and transformation fields, it is specifically for use in efficient switch convertor device and method.
Description
Technical field：
The present invention relates to a kind of power transmission and transformation field more particularly to a kind of efficient switch convertor device and methods.
Background technology：
At present, inverse-excitation type switch power-supply due to transfer efficiency and power factor it is relatively low, be suitble to low power application scenario；Positive activation type
Switch power efficiency is promoted, and is suitble to middle low power occasion；Semibridge system and full-bridge type hard switching power-efficient are higher, but power
The relatively low application scenario that can not also meet more than mid power of factor；Phase-shifted full-bridge converter efficiency is very high, but can not be in full electricity
Sofe Switch is realized in the range of pressure；Series resonant converter output no-load is non-adjustable, the resonance loop switch of parallel resonance converter
Loss is big；The load change frequency amplitude of variation of Series- Parallel Resonant Converter is small.Therefore it needs a kind of wide input voltage range, move
State fast response time, high efficiency, High Power Factor switch converters device.
Invention content：
The object of the present invention is to provide a kind of efficient switch convertor device and methods.
Above-mentioned purpose is realized by following technical scheme：
A kind of efficient switch transform method, accessory power supply use the topological structure of inverse-excitation type, and chip VIPER22A is electric current control
The switching device of mode PWM processed integrates switching tube and controls the tool of chip compared with wide input voltage range, relatively low treats
The characteristics of machine power consumption, high voltage start, and there is the very complete defencive functions such as overcurrent, overvoltage, under-voltage and excess temperature,
Booster converter control chip is UCC28019, and using the booster circuit of PWM, built-in multiplier can taking into line output voltage
Sample control, the sampling of input voltage control, the control method of input current synchronization input voltage, and power factor is total humorous up to 0.995
Wave aberration rate be less than 3%, noise sensitivity is small, and starting current is low, and with soft start, under-voltage locking, defeated people's power down protection,
Output over-voltage protection, exports under-voltage detection/enhancing dynamic response, overcurrent protection, peak point current limitation at open loop protection standby mode
Etc. complete defencive function, for the control chip of controlled resonant converter using L6599N, inner setting fixes dead time, is operated in
Under 50% duty ratio, the realization of resonance can be ensured, switching frequency is supported to can reach 500kHz, being internally integrated one can bear
The high pressure floating structure of 600V voltages saves external bootstrap diode.Meanwhile can converter be made according to loading condition
Run on different working modes, when unloaded or very light load is operated in pulse interval pattern, is working in pulse interval state
When, allow to close the pfc controller of resonant transform circuit prime, it is thus eliminated that in the no-load loss in this stage, conversion effect
Rate can reach more than 97%, while have the function of soft start, over-pressed detection, under-voltage detection, current detecting, overload protection etc., defeated
Enter wide voltage range, rapid dynamic response speed, high efficiency, High Power Factor switch converters device, meet high and medium power field
Share the requirement of electric equipment.
The equipment that the efficient switch transform method uses, composition include：Exchange input wires terminal, the friendship
Stream input wires terminal is electrically connected booster converter and accessory power supply, booster converter electrical connection resonant transformation
Device, controlled resonant converter connection leading-out terminal, the accessory power supply connect booster converter control circuit harmony respectively
Shake converter control circuit, and the booster converter control circuit connects booster converter and resonance convertor controls electricity respectively
Road, resonant converter control circuit connection controlled resonant converter.
The equipment that the efficient switch transform method uses, the accessory power supply are flyback control model, control core
For piece using the integrated VIPER22A of PWM controller and switching tube, the high frequency transformer of the accessory power supply is ferrite
The voluntarily coiling of magnetic core EE25 enameled wires, the accurate voltage-stablizer of the accessory power supply are LM431, the high pressure of the accessory power supply
Isolating device is PC817.
The equipment that the efficient switch transform method uses, the switching tube MOSFET of the booster converter fly for English
The 20N605S of Ling companies, the inductance of the booster converter is the voluntarily coiling of Sendust Cores 47*24*18 enameled wires, described
Booster converter control circuit chip be TI companies UCC28019, the switching tube MOSFET of the controlled resonant converter is ST
The W20NB50 of company, the high frequency transformer of the controlled resonant converter is the voluntarily coiling of FERRITE CORE EE42 enameled wires, described
Controlled resonant converter leakage inductance for the voluntarily coiling of Sendust Cores 39.9*24.1*14.5 enameled wires, the controlled resonant converter control
Circuit chip processed is the L6599N of ST companies.
Beneficial effects of the present invention：
1. the efficient switch convertor device and method of the present invention, accessory power supply use the topological structure of inverse-excitation type, chip
VIPER22A is the switching device of current control mode pulsewidth modulation, integrates switching tube and controls the wider input of tool of chip
Voltage range, the characteristics of starting compared with low standby power loss, high voltage, and it is very complete with overcurrent, overvoltage, under-voltage and excess temperature etc.
Standby defencive function.
The efficient switch convertor device and method of the present invention, booster converter control chip is UCC28019, is used
The booster circuit of PWM, built-in multiplier can be into the sampling controls, the sampling of input voltage control, input electricity of line output voltage
The control method of the synchronous input voltage of stream, for power factor up to 0.995, total harmonic distortion factor is less than 3%, and noise sensitivity is small, starts
Electric current is low, and with soft start, under-voltage locking, defeated people's power down protection, output over-voltage protection, open loop protection standby mode, defeated
Go out the complete defencive functions such as under-voltage detection/enhancing dynamic response, overcurrent protection, peak point current limitation.
The efficient switch convertor device and method of the present invention, the control chip of controlled resonant converter are internal using L6599N
The fixed dead time of setting, is operated under 50% duty ratio, can ensure the realization of resonance.Switching frequency is supported to can reach
500kHz is internally integrated a high pressure floating structure that can bear 600V voltages, saves external bootstrap diode.Together
When, converter can be made to run on different working modes according to loading condition, when unloaded or very light load is operated between pulse
It has a rest pattern, when working in pulse interval state, allows to close the pfc controller of resonant transform circuit prime, it is thus eliminated that
In the no-load loss in this stage, transfer efficiency can reach more than 97%, while have soft start, overvoltage detection, under-voltage inspection
The functions such as survey, current detecting, overload protection.
The present invention efficient switch convertor device and method, wide input voltage range, rapid dynamic response speed, efficiently
The switch converters device of rate, High Power Factor, meets the requirement of high and medium power occasion electrical equipment.
Description of the drawings：
Attached drawing 1 is the overall construction drawing of the present invention.
Attached drawing 2 is the auxiliary power circuit schematic diagram of the present invention.
Attached drawing 3 is the booster converter control circuit schematic diagram of the present invention.
Attached drawing 4 is the resonant converter control circuit schematic diagram of the present invention.
In figure：1-exchange input wires terminal；2-booster converter；3-controlled resonant converter；4-leading-out terminal；
5-accessory power supply；6-booster converter control circuit；7-resonant converter control circuit.
Specific embodiment：
Embodiment 1：
Efficient switch transform method, accessory power supply use the topological structure of inverse-excitation type, and chip VIPER22A is current control mould
The switching device of formula pulsewidth modulation integrates switching tube and controls the tool of chip compared with wide input voltage range, relatively low standby work(
The characteristics of consumption, high voltage start, and with the very complete defencive functions such as overcurrent, overvoltage, under-voltage and excess temperature, boosting
Convertor controls chip is UCC28019, and using the booster circuit of PWM, built-in multiplier can be into the sampling control of line output voltage
The sampling of system, input voltage controls, the control method of input current synchronization input voltage, and for power factor up to 0.995, total harmonic wave is abnormal
Variability is less than 3%, and noise sensitivity is small, and starting current is low, and with soft start, under-voltage locking, defeated people's power down protection, output
Overvoltage protection, open loop protection standby mode, output is under-voltage, and detection/enhancing dynamic response, overcurrent protection, peak point current limitation etc. are complete
Standby defencive function, the control chip of controlled resonant converter using L6599N, fix dead time, be operated in 50% and account for by inner setting
Under sky ratio, it can ensure the realization of resonance, switching frequency is supported to can reach 500kHz, 600V electricity can be born by being internally integrated one
The high pressure floating structure of pressure saves external bootstrap diode.Meanwhile it can run on converter according to loading condition
Different working modes, when unloaded or very light load, are operated in pulse interval pattern, when working in pulse interval state, allow
The pfc controller of resonant transform circuit prime is closed, it is thus eliminated that in the no-load loss in this stage, transfer efficiency can reach
To more than 97%, while there is soft start, over-pressed detection, under-voltage detection, current detecting, overload protection etc., input voltage model
The switch converters device of width, rapid dynamic response speed, high efficiency, High Power Factor is enclosed, meets high and medium power occasion electricity consumption and sets
Standby requirement.
Embodiment 2：
The equipment that the efficient switch transform method uses, composition include：Input wires terminal is exchanged, the exchange is defeated
Enter wire connection terminal 1 and be electrically connected booster converter 2 and accessory power supply 5, booster converter electrical connection controlled resonant converter
3, controlled resonant converter connection leading-out terminal 4, it is harmonious that the accessory power supply connects booster converter control circuit 6 respectively
Shake converter control circuit 7, and the booster converter control circuit connects booster converter and resonance convertor controls respectively
Circuit, resonant converter control circuit connection controlled resonant converter.
Embodiment 2：
According to the equipment that efficient switch transform method described in embodiment 1 uses, the accessory power supply is flyback control model,
Controlling chip, the high frequency transformer of the accessory power supply is using PWM controller and switching tube integrated VIPER22A
The voluntarily coiling of FERRITE CORE EE25 enameled wires, the accurate voltage-stablizer of the accessory power supply are LM431, the accessory power supply
High_voltage isolation device be PC817.
Embodiment 3：
According to the equipment that efficient switch transform method described in embodiment 1 uses, the switching tube of the booster converter
MOSFET is the 20N605S of company of Infineon, and the inductance of the booster converter is Sendust Cores 47*24*18 enameled wires
Voluntarily coiling, the booster converter control circuit chip are the UCC28019 of TI companies, and the controlled resonant converter is opened
The W20NB50 that pipe MOSFET is ST companies is closed, the high frequency transformer of the controlled resonant converter is FERRITE CORE EE42 enamel-covers
Line voluntarily coiling, the leakage inductance of the controlled resonant converter are the voluntarily coiling of Sendust Cores 39.9*24.1*14.5 enameled wires, institute
The resonant converter control circuit chip stated is the L6599N of ST companies.
Its all circuit is all connected with conducting wire, between each figure the expression of same names label link together；Reference attached drawing 1,
Input of the alternating voltage of 70V ~ 265VAC as the booster converter 2 and accessory power supply 5, accessory power supply output
+ 12V connect booster converter control circuit 6 and resonant converter control circuit 7 respectively, booster converter control electricity
Road connects booster converter and resonant converter control circuit, resonant converter control circuit connection resonant transformation respectively
Device 3, input of the DC voltage of+385V that the boosting variator exports as controlled resonant converter, the resonant transformation
Device connects leading-out terminal 4, outputs of the leading-out terminal output+24V as controller.
With reference to attached drawing 2,70V ~ 265VAC alternating voltages inhibit as input, protective tube FU current-limiting protections, thermistor RT
Surge current, safety capacitance C1 inhibit series mode interference, and R1 absorbs static electric energy, varistor RV overvoltage protections, L1, C2, C3, L2
Suppression common mode is interfered, and voluntarily 48 circle of coiling, safety capacitance C4 filter out high frequency and do for ferrite bead 22*14*8 enameled wires by L1, L2
It disturbs, at C4 both ends, output AC voltage is ACL, CAN, and alternating voltage is changed pulsating dc voltage, pulsating direct current by rectifier bridge BD1
Voltage becomes steady dc voltage after capacitance C6, C7, input voltage of the DC voltage as high frequency transformer, through excessively high
The DC voltage of frequency power transformer T conversion outputs is+12V；Wherein, high frequency transformer T with FERRITE CORE EE25 enameled wires voluntarily
Coiling, 120 circle of primary side, 16 circle of secondary, 20 circle of chip VIPER22A auxiliary windings；D1, C8, R2 composition buffering clamp networks, with
The D feet of VIPER22A is prevented to be broken down by high-voltage；D3, C12, C13, L3 form current rectifying and wave filtering circuit, make output+12V DC voltage
Ripple is lower；Accurate voltage-stablizer LM431 and isolating device PC817 composition feedback networks, if output voltage increases isolating device
The diode circulating current of PC817 will increase, and the triode electric current of isolating device PC817 will increase therewith, cause to flow into
The FB feet electric current increase of VIPER22A, at the same time VIPER22A internal pulses width PWM will reduce, and subtract the energy of transmission
Small, output voltage lowers to realize automatic Regulation therewith.
Embodiment 6：
Efficient switch convertor device according to claim 2 and method, reference attached drawing 3, the accessory power supply
The input voltage of ACL, CAN as booster converter, capacitance C14 prevent input voltage is too low from can not start, and diode D5 is defeated
Going out to be intended to charge to provide access, L4 is boosting energy storage inductor, and D4 is rectifier diode, and C21 is the storage capacitor of output+385V, three
Pole pipe SS8550S accelerates switching tube 20N605S shutdowns, and resistance R16 absorbs switching tube grid voltage spike, and C20, R18 absorb
Switching tube drain voltage spike, power supplies of the accessory power supply output+12V as control chip UCC28019, R13,
R14, R15, C15 form voltage sampling circuit, access 4 feet of UCC28019, and R10, R11, R12 composition current sampling circuit connect
Enter 3 feet of UCC28019, R19, R20, C19 form output voltage sampling circuit, access 6 feet of UCC28019, UCC28019 handles
The signal of access is sent into internal multiplier and is allowed to the pwm signal that 8 feet export different pulse widths, and switching tube is made constantly to switch, and protects
Output voltage stabilization is demonstrate,proved, while input voltage waveform is caused to force follow current waveform.
Embodiment 7：
Efficient switch convertor device according to claim 2 and method, reference attached drawing 4, accessory power supply output+
12V provides power supply for L6599N, and C30, R30 determine the maximum operating frequency of soft start, C31, R31 setting overload current longest
Duration, C32, R29 setting L6599N internal oscillator lowest operating frequencies, R32, C32, R29 are set to shake inside L6599N
Device maximum operating frequency is swung, 6 feet of L6599N are over-current detection input terminal, if this foot voltage just stops less than 0.75V oscillators
Work, 7 feet of L6599N are over-and under-voltage detection input, and 11 feet and 15 feet of L6599N are respectively as the upper of controlled resonant converter
The drive signal of down tube.Input of the direct current+385V voltages as the controlled resonant converter, DC voltage+24V become as resonance
The output of parallel operation, controlled resonant converter leakage inductance L5 are made using Sendust Cores enameled wire around 18 circles, and high frequency transformer T1 uses iron
The voluntarily coiling of ferrite core EE42 enameled wires, 28 circle of primary side, 10 circle of secondary center band tap, C23, R23 absorb field-effect tube Q3
Due to voltage spikes；D6, D7, which serve, to be rapidly switched off, on R21, R24 limit switch pipe Q3, Q4 parasitic gate inductance and parasitic capacitance
Rising time and damped vibration, R22, R25 discharge process prevents switching tube Q3, Q4 inadvertent free open-minded.DC voltage+24V passes through
It is accurate steady if output voltage increases after R39, R40, R41 partial pressure compared with accurate voltage-stablizer LM431 internal reference voltages 2.5V
The output of depressor LM431 internal errors amplifier will increase, and isolating device PC817 internal secondaries tube current will reduce, and cause to be isolated
Triode electric current FB inside device PC817 will reduce, and lead to the 5 foot voltages of L6599N will increase, and shake inside L6599N therewith
The frequency of oscillation raising of device is swung, output voltage is made to reduce to reach pressure stabilization function；+ 385V is the DC bus-bar voltage of input, should
Voltage is divided by R34, R36, and 7 feet of L6599N are accessed after C34, R35, C35 filtering, are made when DC bus-bar voltage is excessively high
The voltage of the 7 foot feet of L6599N starts overvoltage protection when being higher than 6V, makes the 7 foot voltages of L6599N low when DC bus-bar voltage is too low
Start under-voltage protection when 1.25V；C28, R26, D9, D10, R27, C29, R28 form current foldback circuit, work as controlled resonant converter
Electric current is more than setting value, and the voltage that 6 feet of L6599N generate just is more than reference voltage 1.5V, is then turned off the output of oscillator
Start overcurrent protection.
Claims (4)
1. a kind of efficient switch transform method, it is characterized in that：Its accessory power supply uses the topological structure of inverse-excitation type, chip
VIPER22A is the switching device of current control mode pulsewidth modulation, integrates switching tube and controls the wider input of tool of chip
Voltage range, the characteristics of starting compared with low standby power loss, high voltage, and it is very complete with overcurrent, overvoltage, under-voltage and excess temperature etc.
Standby defencive function, booster converter control chip is UCC28019, and using the booster circuit of PWM, built-in multiplier can
Sampling control, the sampling control of input voltage, input current into line output voltage synchronize the control method of input voltage, power
Factor is up to 0.995, and total harmonic distortion factor is less than 3%, and noise sensitivity is small, and starting current is low, and with soft start, under-voltage lock
Fixed, defeated people's power down protection, open loop protection standby mode, exports under-voltage detection/enhancing dynamic response, overcurrent at output over-voltage protection
The complete defencive functions such as protection, peak point current limitation, the control chip of controlled resonant converter using L6599N, fix by inner setting
Dead time is operated under 50% duty ratio, can ensure the realization of resonance, and switching frequency is supported to can reach 500kHz, inside collection
The high pressure floating structure that can bear 600V voltages into one saves external bootstrap diode.It meanwhile can be according to load
Situation makes converter run on different working modes, and when unloaded or very light load is operated in pulse interval pattern, is working in
During pulse interval state, allow to close the pfc controller of resonant transform circuit prime, it is thus eliminated that in the zero load in this stage
Loss, transfer efficiency can reach more than 97%, while there is soft start, over-pressed detection, under-voltage detection, current detecting, overload to protect
Shield etc. functions, wide input voltage range, rapid dynamic response speed, high efficiency, High Power Factor switch converters device, meet
The requirement of high and medium power occasion electrical equipment.
2. the equipment that efficient switch transform method according to claim 1 uses, composition includes：Exchange input terminal
Son, it is characterized in that：The exchange input wires terminal is electrically connected booster converter and accessory power supply, and the boosting becomes
Parallel operation is electrically connected controlled resonant converter, controlled resonant converter connection leading-out terminal, and the accessory power supply connects boosting respectively
Converter control circuit and resonant converter control circuit, the booster converter control circuit connect booster converter respectively
And resonant converter control circuit, resonant converter control circuit connection controlled resonant converter.
3. the equipment that efficient switch transform method according to claim 1 uses, it is characterized in that：The accessory power supply is
Flyback control model, control chip using PWM controller and the integrated VIPER22A of switching tube, the accessory power supply
High frequency transformer is the voluntarily coiling of FERRITE CORE EE25 enameled wires, and the accurate voltage-stablizer of the accessory power supply is LM431, institute
The high_voltage isolation device for the accessory power supply stated is PC817.
4. the equipment that efficient switch transform method according to claim 1 uses, it is characterized in that：The booster converter
Switching tube MOSFET be company of Infineon 20N605S, the inductance of the booster converter is Sendust Cores 47*24*
The voluntarily coiling of 18 enameled wires, the booster converter control circuit chip are the UCC28019 of TI companies, and the resonance becomes
The switching tube MOSFET of parallel operation is the W20NB50 of ST companies, and the high frequency transformer of the controlled resonant converter is FERRITE CORE
The voluntarily coiling of EE42 enameled wires, the leakage inductance of the controlled resonant converter for Sendust Cores 39.9*24.1*14.5 enameled wires voluntarily
Coiling, the resonant converter control circuit chip are the L6599N of ST companies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226929.1A CN108258907A (en) | 2016-12-27 | 2016-12-27 | Efficient switch convertor device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226929.1A CN108258907A (en) | 2016-12-27 | 2016-12-27 | Efficient switch convertor device and method |
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| Publication Number | Publication Date |
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| CN108258907A true CN108258907A (en) | 2018-07-06 |
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| CN201611226929.1A Pending CN108258907A (en) | 2016-12-27 | 2016-12-27 | Efficient switch convertor device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564492A (en) * | 2020-11-20 | 2021-03-26 | 苏州浪潮智能科技有限公司 | High dynamic response switching power supply and server |
| CN113945754A (en) * | 2021-10-16 | 2022-01-18 | 深圳市卡贝电子技术有限公司 | Power-down protection circuit and protection method |
| CN113945754B (en) * | 2021-10-16 | 2024-05-24 | 深圳市卡贝电子技术有限公司 | Power-down protection circuit and protection method |
-
2016
- 2016-12-27 CN CN201611226929.1A patent/CN108258907A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564492A (en) * | 2020-11-20 | 2021-03-26 | 苏州浪潮智能科技有限公司 | High dynamic response switching power supply and server |
| CN113945754A (en) * | 2021-10-16 | 2022-01-18 | 深圳市卡贝电子技术有限公司 | Power-down protection circuit and protection method |
| CN113945754B (en) * | 2021-10-16 | 2024-05-24 | 深圳市卡贝电子技术有限公司 | Power-down protection circuit and protection method |
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