CN107070262A - Automatic transfer switching electric appliance controller power source special - Google Patents
Automatic transfer switching electric appliance controller power source special Download PDFInfo
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- CN107070262A CN107070262A CN201611244856.9A CN201611244856A CN107070262A CN 107070262 A CN107070262 A CN 107070262A CN 201611244856 A CN201611244856 A CN 201611244856A CN 107070262 A CN107070262 A CN 107070262A
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Classifications
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
- H02M1/096—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the power supply of the control circuit being connected in parallel to the main switching element
-
- 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
-
- 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
- H02M1/0083—Converters characterised by their input or output configuration
Abstract
The invention discloses a kind of automatic transfer switching electric appliance controller power source special, including rectification filtering module, power conversion block, leakage inductance absorption module and control module；Rectification filtering module has two, and to be changed respectively with automatic change-over two power supply POWER1 and POWER2 are connected, and high-voltage ac power is converted into the DC voltage of pulsation, then accesses leakage inductance absorption module, power conversion modules and control module and power；Leakage inductance absorption module is used to protecting component N-type MOSFET in power conversion modules, and power conversion modules are used for the voltage conversion of two power supplys into the voltage for being available for controller to use；Control module is used to input while realizing two power supplys, single output, and controls output voltage to maintain required voltage.The automatic transfer switching electric appliance controller power source special has two input interfaces, simultaneously can be connected on the different power supply of two-way on its input interface simultaneously, produces all the way or multiple-channel output；The high isolation characteristic between two-way power supply can also be met simultaneously.
Description
Technical field
The invention belongs to automatic transfer switching electric appliance technical field, more particularly to a kind of automatic transfer switching electric appliance control
Device power source special.
Background technology
With the development of modern social economy, people for distribution Power System Reliability requirement more and more higher so as to
The requirement of electric electric elements is also being improved.Because automatic change-over is often as one-level or the power supply of superfine load
End, so the requirement to him is also that comparison is high.Traditional automatic transfer switching electric appliance controller power source is often by two works
Frequency power transformer or two Switching Power Supplies are constituted.There is no any contact between two power supplys.Belong to two single input electricity
Source is simply connected side by side.
The content of the invention
It is this special it is an object of the invention to provide a kind of new-type automatic transfer switching electric appliance controller power source special
Power supply has two input interfaces, simultaneously can be connected on the different power supply of two-way on its input interface simultaneously, produce all the way or
Person's multiple-channel output；The high isolation characteristic between two-way power supply can also be met simultaneously.
In order to achieve the above object, the present invention provides a kind of automatic transfer switching electric appliance controller power source special and included：It is whole
Flow filtration module, power conversion block, leakage inductance absorption module, control module；
The rectification filtering module has two, to be changed respectively with the automatic change-over two power supply POWER1 and
POWER2 connections, high-voltage ac power are converted into the DC voltage of pulsation, then access the leakage inductance absorption module, power conversion
Module and control module are powered；
The power conversion modules include N-type MOSFET QA1, N-type MOSFET QB1, power transformer TA1 and power
Transformer TB1；The positive input terminal of the DC voltage for the rectification filtering module output being connected with the power supply POWER1 becomes with power
The input pin 1 of depressor TA1 primary side input coil is connected, and its output pin 3 is connected with N-type MOSFET QA1 drain electrode；
Symmetrically, the positive input terminal and power transformer of the DC voltage for the rectification filtering module output being connected with the power supply POWER2
The input pin 1 of TB1 primary side input coil is connected, and its output pin 3 is connected with N-type MOSFET QB1 drain electrode；N-type
MOSFET QA1 source electrode and N-type MOSFET QB1 source electrode are connected in respective reference point；Power transformer TA1's
The pin 7 of output winding is connected with diode CA8 anode, and the pin 6 of power transformer TA1 output winding is grounded；Power
The pin 7 of transformer TB1 output winding is connected with diode CB8 anode, the pin of power transformer TB1 output winding
6 ground connection；Diode CA8 negative electrode and diode CB8 negative electrode o controller use voltage；
The leakage inductance absorption module has two, is connected to the just defeated of the DC voltage that the rectification filtering module is exported
Enter between end and N-type MOSFET drain electrode, for protecting N-type MOSFET QA1, QB1；
The control module by resistor RC1~RC7, capacitor CC1, PWM chip UC1, photoelectrical coupler UC2, UC3,
Insulating power supply module UC4, UC5 is constituted；
Wherein, between PWM chip UC1 VCC pins access diode CA8 negative electrode and diode CB8 negative electrode, and with
Resistor RC1 first end connection, resistor RC1 the second end is connected with resistor RC2, and resistor RC2 connects reference point；Electricity every
VIN+ pins from power module UC5 are also accessed between diode CA8 negative electrode and diode CB8 negative electrode；
Insulating power supply module UC4 VIN- pins and VOUT-, insulating power supply module UC5 VIN- pins and VOUT-, light
Electric coupler UC2 input sides negative electrode, photoelectrical coupler UC3 negative electrode are connected with reference point respectively；
PWM chip UC1 OUTPUT1 pins are connected with resistor RC5 first end；Resistor RC5 the second end and light
Electric coupler UC2 input sides anode is connected；The colelctor electrode of photoelectrical coupler UC2 outlet side is with insulating power supply module UC4's
VOUT+ pins are connected；The of the emitter stage of photoelectrical coupler UC2 outlet side and N MOSFET QA1 grid, resistor RC6
One end is connected；Resistor RC6 the second end is connected with N MOSFET QA1 source electrode；
PWM chip UC1 OUTPUT2 pins are connected with resistor RC4 first end, resistor RC4 the second end and light
Electric coupler UC3 input anode is connected, and the colelctor electrode of photoelectrical coupler UC3 outlet side is with insulating power supply module UC5's
VOUT+ pins are connected；The of the emitter stage of photoelectrical coupler UC3 outlet side and N MOSFET QB1 grid, resistor RC7
One end is connected；Resistor RC7 the second end is connected with N MOSFET QB1 source electrode；
PWM chip UC1 RT/CT pins are connected with resistor RC3 first end, resistor RC3 the second end connection ginseng
Examination point；Capacitor CC1 is connected in parallel on resistor RC3 two ends；
PWM chip UC1 VFB pins are connected to resistor RC1 the second end；The GND pins of PWM chip connect reference point.
Further, the leakage inductance absorption module includes resistor RA6, capacitor CA3 and diode DA6；Resistor RA6's
One end is connected to the positive input terminal of the DC voltage of rectification filtering module output, and the other end is connected to diode DA6 negative electrode, two
Pole pipe DA6 anode is connected with the output pin 3 of power transformer TA1 primary side input coil；Capacitor CA3 and resistor
RA6 is in parallel.
Further, the rectification filtering module include resistor RA1~RA4, diode DA1~DA4, capacitor CA1~
CA2 components, resistor RA1-RA4 is sequentially connected in series, power supply POWER1 input POWER1_A and diode DA1 anode,
DA3 negative electrode connection, POWER1_N is connected with diode DA2 anode, DA4 negative electrode；Diode DA1's and diode DA2
Negative electrode is connected with capacitor CA1 positive power source terminal, resistor RA1 one end；Diode DA3 and diode DA4 anode with
Capacitor CA2 negative power end, resistor RA4 one end are connected；Capacitor CA1 and capacitor CA2 head and the tail are connected, in the middle of it
Tie point is connected with resistor RA2 and resistor RA3 intermediate point.
The automatic transfer switching electric appliance controller power source special that the present invention is provided has the following technical effect that：
1) there is two-way power input interface, and two-way interface can input the power supply of different distribution loops simultaneously, and
And power supply all the way can be exported；
2) compared to the product of existing two-way power supply, the technical scheme that the present invention is provided only has used a driving chip,
Reduce the cost of product；
3) the applicable automatic transfer switching electric appliance controller of the present invention is in high-frequency work state, it is possible to use high frequency
Ferrite Material is used as magnetic core so that power volume is small, lightweight.
Brief description of the drawings
The way circuit figure for the automatic transfer switching electric appliance controller power source special that Fig. 1 provides for the present invention.
Fig. 2 a are the circuit diagram with the power supply POWER1 rectification filtering modules being connected；
Fig. 2 b are the circuit diagram with the power supply POWER2 rectification filtering modules being connected；
Fig. 3 a are the circuit diagram with the power supply POWER1 power conversion modules being connected；
Fig. 3 b are the circuit diagram with the power supply POWER2 power conversion modules being connected；
Fig. 4 a are the circuit diagram for the leakage inductance absorption module being connected with power supply POWER1；
Fig. 4 b are the circuit diagram for the leakage inductance absorption module being connected with power supply POWER2；
Fig. 5 is the circuit diagram of control module.
Embodiment
The automatic transfer switching electric appliance controller power source special provided below in conjunction with the accompanying drawings with specific embodiment the present invention
It is described in detail.
As shown in Fig. 1~5, the present invention, which provides a kind of automatic transfer switching electric appliance controller power source special, to be included：Rectification is filtered
Ripple module, power conversion block, leakage inductance absorption module, control module；
As shown in Fig. 2 two pieces of rectification filtering module structures are identical, involved by the rectification filtering module being connected with POWER1
Component is labeled as A, the component involved by rectification filtering module being connected with POWER2 labeled as B, below with POWER1
Connected rectification filtering module is defined, and describes the structure of rectification filtering module；Including resistor RA1~RA4, diode DA1~
DA4, capacitor CA1~CA2 components, resistor RA1-RA4 are sequentially connected in series, power supply POWER1 input POWER1_A and two
The negative electrode connection of pole pipe DA1 anode, DA3, POWER1_N is connected with diode DA2 anode, DA4 negative electrode；Diode
DA1 and diode DA2 negative electrode are connected with capacitor CA1 positive power source terminal, resistor RA1 one end；Diode DA3 and two
Pole pipe DA4 anode is connected with capacitor CA2 negative power end, resistor RA4 one end；Capacitor CA1 and capacitor CA2
Head and the tail are connected, and its intermediate connection point is connected with resistor RA2 and resistor RA3 intermediate point.
Its working method is as follows：In the input of power supply 1, high-voltage ac power after diode DA1-DA4 by changing
DC voltage as pulsation.By increasing capacitor CA1-CA2 so that the DC voltage of pulsation more tends towards stability, and passes through
The waveform in voltage normally with the DC voltage of the pulsation under abnormal condition is analyzed, the demand of corresponding capacitor is calculated,
Resistor RA1-RA4 purpose is that the DC voltage of pulsation is evenly distributed on corresponding capacitor.Capacitor C4 effect
It is to rely on low ESR, forms the guiding path of differential mode waveform, reduces EMI.
In the input of power supply 2, resistor RB1-RB4, diode DB1-DB4, capacitor CB1-CB2.Similarly realize
Identical function.
As shown in figure 3, power conversion modules include N-type MOSFET QA1, N-type MOSFET QB1, power transformer TA1,
With power transformer TB1；The positive input terminal and power of the DC voltage for the rectification filtering module output being connected with power supply POWER1
The input pin 1 of transformer TA1 primary side input coil is connected, the drain electrode phase of its output pin 3 and N-type MOSFET QA1
Even；Symmetrically, the positive input terminal and power transformer of the DC voltage for the rectification filtering module output being connected with power supply POWER2
The input pin 1 of TB1 primary side input coil is connected, and its output pin 3 is connected with N-type MOSFET QB1 drain electrode；N-type
MOSFET QA1 source electrode and N-type MOSFET QB1 source electrode are connected in respective reference point；Power transformer TA1's
The pin 7 of output winding is connected with diode CA8 anode, and the pin 6 of power transformer TA1 output winding is grounded；Power
The pin 7 of transformer TB1 output winding is connected with diode CB8 anode, the pin of power transformer TB1 output winding
6 ground connection；Diode CA8 negative electrode and diode CB8 negative electrode o controller use voltage；
Its working method is as follows：Pass through the PWM control modes of control module so that N-type MOSFET QA1, QB1 open and
Close, this makes it possible to the primary side stored the energy in power transformer TA1, TB1, so that by energy suitable when
It is transferred to power transformer TA1, TB1 secondary side.
As shown in figure 4, two leakage inductance absorption module structures are identical, the involved component that is connected with POWER1 is labeled as A,
The component being connected with POWER2 is labeled as B, describes leakage inductance absorption by taking the leakage inductance absorption module being connected with POWER1 as an example below
The structure of module.
In the embodiment of the present invention, leakage inductance absorption module includes resistor RA6, capacitor CA3 and diode
DA6；Resistor RA6 one end is connected to the positive input terminal of the DC voltage of rectification filtering module output, and the other end is connected to two
Pole pipe DA6 negative electrode, diode DA6 anode is connected with the output pin 3 of power transformer TA1 primary side input coil；
Capacitor CA3 is in parallel with resistor RA6.
Its working method is as follows：By diode DA6 reverse protection, at the time of N-type MOSFET QA1 are closed, set up
One the RC being made up of resistor RA6, capacitor CA3 shakes path of releasing, by the leakage inductance in PCB copper foils and transformer TA1
In parasitic energy released by this path, so as to realize protection N-type MOSFET QA1 function.
In the leakage inductance absorption module of power supply 2, resistor RB6, capacitor CB3, diode DB6.Similarly realize identical
Function.
Control module connected mode as shown in Figure 5 is as follows:This module it is main by resistor RC1~RC7, capacitor CC1,
PWM chip UC1, photoelectrical coupler UC2, UC3, insulating power supply module UC4, UC5 are constituted；
Wherein, between PWM chip UC1 VCC pins access diode CA8 negative electrode and diode CB8 negative electrode, and with
Resistor RC1 first end connection, resistor RC1 the second end is connected with resistor RC2, and resistor RC2 connects reference point；Electricity every
VIN+ pins from power module UC5 are also accessed between diode CA8 negative electrode and diode CB8 negative electrode；
Insulating power supply module UC4 VIN- pins and VOUT-, insulating power supply module UC5 VIN- pins and VOUT-, light
Electric coupler UC2 input sides negative electrode, photoelectrical coupler UC3 negative electrode are connected with reference point respectively；
PWM chip UC1 OUTPUT1 pins are connected with resistor RC5 first end；Resistor RC5 the second end and light
Electric coupler UC2 input sides anode is connected；The colelctor electrode of photoelectrical coupler UC2 outlet side is with insulating power supply module UC4's
VOUT+ pins are connected；The of the emitter stage of photoelectrical coupler UC2 outlet side and N MOSFET QA1 grid, resistor RC6
One end is connected；Resistor RC6 the second end is connected with N MOSFET QA1 source electrode；
PWM chip UC1 OUTPUT2 pins are connected with resistor RC4 first end, resistor RC4 the second end and light
Electric coupler UC3 input anode is connected, and the colelctor electrode of photoelectrical coupler UC3 outlet side is with insulating power supply module UC5's
VOUT+ pins are connected；The of the emitter stage of photoelectrical coupler UC3 outlet side and N MOSFET QB1 grid, resistor RC7
One end is connected；Resistor RC7 the second end is connected with N MOSFET QB1 source electrode；
PWM chip UC1 RT/CT pins are connected with resistor RC3 first end, resistor RC3 the second end connection ginseng
Examination point；Capacitor CC1 is connected in parallel on resistor RC3 two ends；
PWM chip UC1 VFB pins are connected to resistor RC1 the second end；The GND pins of PWM chip connect reference point.
It is preferred that, can be in the pin 1 and power supply with rectification filtering module, leakage inductance absorption module and power transformer TA1
POWER1, which is connected, to be followed by being grounded after electric capacity CA4, electric capacity CA5.It is corresponding power supply POWER2 be connected be followed by electric capacity CB4, electric capacity CB5
After be grounded.
Its working method is as follows：The chip UC1 of outlet side is powered by accessory power supply or battery, maintains its normal work
Make.Resistor RC3 and capacitor CC1 is used for adjusting the frequency of oscillation inside chip UC1.Outlet side virtual voltage passes through resistor
Voltage is compared with chip internal reference voltage after RC1, RC2 progress partial pressure, its partial pressure, to determine voltage error, and next
The adjustment direction of step.Chip UC1 3 pin and 6 pin are driving pin, by internal concussion frequency compared with voltage error,
To determine the conducting and the turn-off time that drive pin.When driving the pin of pin 3 and 6 pin to put high respectively, voltage can lead to respectively
Cross resistor RC5, RC4 and reach respective photoelectrical coupler UC2, UC3, and then drive photoelectrical coupler linearly to turn on, it is true respectively
The size of the voltage at photoelectrical coupler outlet side resistor RC6, RC7 two ends is determined, so that QA1, QB1 points of N MOSFET
Do not turn on.
As AC power POWER1 and POWER2 respectively by rectifier bridge after, respectively become respective DC pulse moving voltage,
It is physical isolation between two-way voltage, this makes it possible to the high insulation characterisitic for meeting two-way voltage.When outlet side chip UC1 starts
When work, go out high level in its 3 pin, 6 human hair combing wastes respectively, to drive the photoelectrical coupler with isolating power to work, utilize
The voltage at resistor RC6, RC7 two ends, driving N MOSFET QA1, QB1 conductings.So that electric current is from power transformer TA1, TB1
Input side store certain energy, when outlet side chip UC1 starts working, go out low electricity in its 3 pin, 6 human hair combing wastes respectively
It is flat, N MOSFET QA1, QB1 cut-off.The energy stored in power transformer TA1, TB1, is transferred into the defeated of power transformer
Go out side, form required voltage.
The power supply circuit scheme of the automatic transfer switching electric appliance of this circuit simple combination different from the past.It is this
Solution, can make the solution of product formation one, product is obtained stronger energy transformation ratio, and output accuracy
One quantitative levels of power supply structural reform that can be more common.
Claims (3)
1. a kind of automatic transfer switching electric appliance controller power source special includes：Rectification filtering module, power conversion block, leakage inductance absorb
Module, control module；The rectification filtering module has two, to be changed respectively with the automatic change-over two power supply
POWER1 and POWER2 connections, by high-voltage ac power be converted into pulsation DC voltage, then access the leakage inductance absorption module,
Power conversion modules and control module are powered；It is characterized in that：
The power conversion modules include N-type MOSFET QA1, N-type MOSFET QB1, power transformer TA1 and power transformation
Device TB1；The positive input terminal and power transformer of the DC voltage for the rectification filtering module output being connected with the power supply POWER1
The input pin 1 of TA1 primary side input coil is connected, and its output pin 3 is connected with N-type MOSFET QA1 drain electrode；Symmetrically
, the positive input terminal and power transformer TB1 of the DC voltage for the rectification filtering module output being connected with the power supply POWER2
Primary side input coil input pin 1 be connected, its output pin 3 is connected with N-type MOSFET QB1 drain electrode；N-type
MOSFET QA1 source electrode and N-type MOSFET QB1 source electrode are connected in respective reference point；Power transformer TA1's
The pin 7 of output winding is connected with diode CA8 anode, and the pin 6 of power transformer TA1 output winding is grounded；Power
The pin 7 of transformer TB1 output winding is connected with diode CB8 anode, the pin of power transformer TB1 output winding
6 ground connection；Diode CA8 negative electrode and diode CB8 negative electrode o controller use voltage；
The leakage inductance absorption module has two, is connected to the positive input terminal of the DC voltage of the rectification filtering module output
Between drain electrode with N-type MOSFET, for protecting N-type MOSFET QA1, QB1；
The control module is by resistor RC1~RC7, capacitor CC1, PWM chip UC1, photoelectrical coupler UC2, UC3, isolation
Power module UC4, UC5 are constituted；
Wherein, between PWM chip UC1 VCC pins access diode CA8 negative electrode and diode CB8 negative electrode, and and resistance
Device RC1 first end connection, resistor RC1 the second end is connected with resistor RC2, and resistor RC2 connects reference point；It is electrically isolated electricity
Source module UC5 VIN+ pins are also accessed between diode CA8 negative electrode and diode CB8 negative electrode；
Insulating power supply module UC4 VIN- pins and VOUT-, insulating power supply module UC5 VIN- pins and VOUT-, photoelectricity coupling
Clutch UC2 input sides negative electrode, photoelectrical coupler UC3 negative electrode are connected with reference point respectively；
PWM chip UC1 OUTPUT1 pin are connected with resistor RC5 first end；Resistor RC5 the second end and photoelectric coupling
Device UC2 input sides anode is connected；The colelctor electrode of photoelectrical coupler UC2 outlet side and insulating power supply module UC4 VOUT+ pins
It is connected；The emitter stage of photoelectrical coupler UC2 outlet side is connected with N MOSFET QA1 grid, resistor RC6 first end；
Resistor RC6 the second end is connected with N MOSFET QA1 source electrode；
PWM chip UC1 OUTPUT2 pins are connected with resistor RC4 first end, resistor RC4 the second end and photoelectricity coupling
Clutch UC3 input anode is connected, the colelctor electrode of photoelectrical coupler UC3 outlet side and insulating power supply module UC5 VOUT+
Pin is connected；The emitter stage of photoelectrical coupler UC3 outlet side and N MOSFET QB1 grid, resistor RC7 first end
Connection；Resistor RC7 the second end is connected with N MOSFET QB1 source electrode；
PWM chip UC1 RT/CT pins are connected with resistor RC3 first end, resistor RC3 the second end connection reference point；
Capacitor CC1 is connected in parallel on resistor RC3 two ends；
PWM chip UC1 VFB pins are connected to resistor RC1 the second end；The GND pins of PWM chip connect reference point.
2. automatic transfer switching electric appliance controller power source special as claimed in claim 1, it is characterised in that：The leakage inductance absorbs mould
Block includes resistor RA6, capacitor CA3 and diode DA6；Resistor RA6 one end is connected to rectification filtering module output
The positive input terminal of DC voltage, the other end is connected to diode DA6 negative electrode, diode DA6 anode and power transformer TA1
Primary side input coil output pin 3 be connected；Capacitor CA3 is in parallel with resistor RA6.
3. automatic transfer switching electric appliance controller power source special as claimed in claim 1 or 2, it is characterised in that：The rectification filter
Ripple module include resistor RA1~RA4, diode DA1~DA4, capacitor CA1~CA2 components, resistor RA1-RA4 according to
Secondary series connection, power supply POWER1 input POWER1_A is connected with diode DA1 anode, DA3 negative electrode, POWER1_N and two
The negative electrode connection of pole pipe DA2 anode, DA4；Diode DA1 and diode DA2 negative electrode and capacitor CA1 positive power source terminal,
Resistor RA1 one end is connected；Diode DA3 and diode DA4 anode and capacitor CA2 negative power end, resistor
RA4 one end is connected；Capacitor CA1 and capacitor CA2 head and the tail are connected, its intermediate connection point and resistor RA2 and resistor
RA3 intermediate point is connected.
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| CN201611244856.9A CN107070262A (en) | 2016-12-29 | 2016-12-29 | Automatic transfer switching electric appliance controller power source special |
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| CN201611244856.9A CN107070262A (en) | 2016-12-29 | 2016-12-29 | Automatic transfer switching electric appliance controller power source special |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787604A (en) * | 2019-02-26 | 2019-05-21 | 美登思电气（上海）有限公司 | The imput output circuit of automatic change-over simulator |
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| CN1274188A (en) * | 1999-05-14 | 2000-11-22 | 日本保护装置销售公司 | Uninterrupted double supplying power source unit |
| US6320771B1 (en) * | 2000-04-10 | 2001-11-20 | International Business Machines Corporation | Fault tolerant active current sharing |
| CN103814512A (en) * | 2011-06-21 | 2014-05-21 | Abb技术有限公司 | Modular power supply for distribution automation system |
| CN205725132U (en) * | 2016-04-11 | 2016-11-23 | 浙江正泰电器股份有限公司 | Double-power controller power circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787604A (en) * | 2019-02-26 | 2019-05-21 | 美登思电气（上海）有限公司 | The imput output circuit of automatic change-over simulator |
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