CN209435116U - Power supply control circuit and equipment - Google Patents
Power supply control circuit and equipment Download PDFInfo
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- CN209435116U CN209435116U CN201920206347.XU CN201920206347U CN209435116U CN 209435116 U CN209435116 U CN 209435116U CN 201920206347 U CN201920206347 U CN 201920206347U CN 209435116 U CN209435116 U CN 209435116U
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Abstract
The utility model discloses a power control circuit and equipment, wherein a first LLC conversion module is connected with a first output end of a controller, and a second LLC conversion module is connected with a second output end of the controller; the output end of the sampling module is connected with the input end of the controller, so that the controller can generate a first control signal and a second control signal according to the sampling signal output by the sampling module, output the first control signal to the first LLC conversion module, and output the second control signal to the second LLC conversion module, so as to control the parallel operation of the first LLC conversion module and the second LLC conversion module. It can be seen that the utility model discloses a controller generates two way control signal, controls parallel LLC converter parallel operation, has reduced the current stress of components and parts in this circuit, and then reduces the turn ratio of transformer for the lectotype wide range of components and parts, save the cost, simplified the installation steps and the space of complete machine.
Description
Technical field
The utility model embodiment is related to power supply control technology field more particularly to a kind of power control circuit and equipment.
Background technique
Traditional microwave power supply control circuit scheme is mainly by Industrial Frequency Transformer, signaling control unit, high-voltage capacitor,
The composition such as high-voltage diode.However, the power level of some HIGH-POWERED MICROWAVESs or High voltage power supply equipment is ratio in industrial circle
It is biggish, small to 3 kilowatts (Kilowatt, KW), have to tens KW greatly.Microwave or high voltage power supply for high power levels come
It says, power control circuit can only be designed using single-stage Industrial Frequency Transformer, and single-stage Industrial Frequency Transformer volume, weight are relatively
Greatly, it can only be selectively mounted on machine shell, which increase complete machine assembling complexity and costs.
Utility model content
In view of this, the present invention provides a kind of power control circuit and equipment, to solve existing power supply control circuit
The complicated, problem at high cost using complete machine assembling caused by the design of single-stage Industrial Frequency Transformer.
In a first aspect, the utility model embodiment provides a kind of power control circuit, comprising: parallel LLC converter,
Controller and sampling module；
The parallel LLC converter includes the first LLC conversion module and the 2nd LLC conversion module, and the first LLC becomes
Mold changing block is connect with the first output end of the controller, and, the second of the 2nd LLC conversion module and the controller
Output end connection；
The output end of the sampling module is connect with the input terminal of the controller；
The controller, the sampled signal for being exported according to sampling module generate first control signal and the second control letter
Number, and the first control signal is exported to the first LLC conversion module, the second control signal is exported to described
2nd LLC conversion module, to control the first LLC conversion module and the 2nd LLC conversion module parallel running.
Further, the parallel LLC converter further includes DC power supplier；
Wherein, the input terminal of the input terminal of the first LLC conversion module and the 2nd LLC conversion module respectively with institute
State DC power supplier connection；
The output end of the output end of the first LLC conversion module and the 2nd LLC conversion module respectively with the electricity
The load of source control circuit connects；
The first LLC conversion module and the 2nd LLC conversion module are used to that the load is driven to work normally.
Further, the parallel LLC converter further includes output rectification module；
Wherein, the first LLC conversion module includes: that submodule and the first LLC resonance submodule occur for the first square wave；Institute
Stating the 2nd LLC conversion module includes: that submodule and the 2nd LLC resonance submodule occur for the second square wave；
The input terminal of submodule occurs for first square wave and second square wave occur the input terminal of submodule respectively with
The output end and the first LLC resonance submodule of submodule occur for the DC power supplier connection, first square wave
Input terminal connection, the output end that submodule occurs for second square wave are connect with the input terminal of the 2nd LLC resonance submodule,
The output end of the first LLC resonance submodule and the output end of the 2nd LLC resonance submodule are rectified with the output
The input terminal of module connects.
Further, it includes the first transistor and second transistor, the second party that submodule, which occurs, for first square wave
It includes third transistor and the 4th transistor that submodule, which occurs, for wave；
First pole of the first transistor is connect with the anode of the DC power supplier；The of the first transistor
Two poles are connect with the first pole of the second transistor；Second pole of the second transistor and bearing for the DC power supplier
Pole connection；
First pole of the third transistor is connect with the anode of the DC power supplier；The of the third transistor
Two poles are connect with the first pole of the 4th transistor；Second pole of the 4th transistor and bearing for the DC power supplier
Pole connection.
Further, the first LLC resonance submodule includes: first capacitor, the second capacitor, the first inductance and the first change
Depressor；
Wherein, the first end of the first capacitor is connect with the first pole of the first transistor, the first capacitor
Second end is connect with the first end of the first end of second capacitor and first inductance respectively, and the second of second capacitor
End is connect with the second pole of the second transistor；
The second end of first inductance is connect with the first end of first transformer primary winding, first transformation
The second end of device primary side winding is connect with the second pole of the first transistor, the first winding of secondary side of first transformer with
The load connection, the second winding of secondary side of first transformer are connect with the output rectification module.
Further, the 2nd LLC resonance submodule includes: third capacitor, the 4th capacitor, the second inductance and the second change
Depressor；
Wherein, the first end of the third capacitor is connect with the first pole of the third transistor, the third capacitor
Second end is connect with the first end of the first end of the 4th capacitor and second inductance respectively, and the second of the 4th capacitor
End is connect with the second pole of the 4th transistor；
The second end of second inductance is connect with the first end of second transformer primary winding, second transformation
The second end of device primary side winding is connect with the second pole of the third transistor, the first winding of secondary side of second transformer with
The load connection, the second winding of secondary side of second transformer are connect with the output rectification module.
Further, it is full-bridge square-wave generator or half-bridge square-wave generator, institute that submodule, which occurs, for first square wave
Stating the second square wave submodule occurs is full-bridge square-wave generator or half-bridge square-wave generator；First transformer is high-frequency iron
Oxysome transformer, the second transformer are high frequency ferrite transformer.
Further, the output rectification module includes first diode, the second diode, third diode, the four or two
Pole pipe, the 5th capacitor, the 6th capacitor, the 7th capacitor and the 8th capacitor；
Wherein, the first end of the second winding of secondary side of first transformer respectively with the cathode of the first diode and
The anode of second diode connects, and the cathode of second diode is connect with the anode of the third diode, described
The cathode of third diode respectively with the first end of the second winding of secondary side of second transformer and the 4th diode
Anode connection；The anode of the first diode and the load connect；
The first end of 5th capacitor is connect with the anode of the first diode, the second end point of the 5th capacitor
It is not connect with the first end of the second end of the second winding of secondary side of first transformer and the 6th capacitor, the 6th electricity
The second end of appearance is connect with the cathode of second diode；
The first end of 7th capacitor is connect with the anode of the third diode, the second end point of the 7th capacitor
It is not connect with the first end of the second end of the second winding of secondary side of second transformer and the 8th capacitor, the 8th electricity
The second end of appearance is connect with the cathode of the 4th diode.
Further, the output rectification module includes the 5th diode, the 6th diode, the 9th capacitor and the tenth electricity
Hold；
Wherein, the secondary first end in the second winding of first transformer and second transformer it is secondary while second around
The second end connection of group；
The first end of the second winding of secondary side of second transformer respectively with the cathode of the 5th diode and described
The anode of 6th diode connects；
The second end of the second winding of secondary side of first transformer passes through the 9th capacitor and the 5th diode
Anode connection, the second end of the second winding of secondary side of first transformer passes through the tenth capacitor and the six or two pole
The cathode of pipe connects.
Further, further includes: the first pulse signal adjuster and the second pulse signal adjuster；
The input terminal of the first pulse signal adjuster is connect with the first output end of the controller, first arteries and veins
The first output end for rushing signal conditioner is connect with the third pole of the first transistor, the first pulse signal adjuster
Second output terminal is connect with the third pole of the second transistor,
The input terminal of the second pulse signal adjuster is connect with the second output terminal of the controller, second arteries and veins
The first output end for rushing signal conditioner is connect with the third pole of the third transistor, the second pulse signal adjuster
Second output terminal is connect with the third pole of the 4th transistor.
Second aspect, the utility model embodiment additionally provide a kind of equipment, and the equipment includes such as above-mentioned first aspect
In any power control circuit.
A kind of power control circuit and equipment that above-mentioned utility model embodiment provides, by by the first LLC conversion module
It is connect with the first output end of controller, the second output terminal connection of the 2nd LLC conversion module and controller；Sampling module it is defeated
The connection of the input terminal of outlet and controller is believed so that the sampled signal that controller can be exported according to sampling module generates the first control
Number and second control signal, and first control signal is exported to the first LLC conversion module, second control signal is exported to
Two LLC conversion modules, to control the first LLC conversion module and the 2nd LLC conversion module parallel running.As it can be seen that the utility model
In controller according to sampled signal generate two path control signal, export respectively to the first LLC conversion module and the 2nd LLC transformation
Module is reduced each in parallel LLC converter with controlling the first LLC conversion module and the 2nd LLC conversion module parallel running
The current stress of a component, and then the turn ratio of transformer is reduced, solve existing power supply control circuit using single-stage work
Complete machine assembling caused by frequency power transformer design is complicated, problem at high cost so that the type selecting range of component is wide, save at
This, simplifies installation steps and the space of complete machine.
Detailed description of the invention
Fig. 1 is the functional block diagram of one of the utility model embodiment power control circuit；
Fig. 2 is the functional block diagram of one of the utility model alternative embodiment power control circuit；
Fig. 3 is the structural schematic diagram of one of the utility model alternative embodiment power control circuit；
Fig. 4 is the structural schematic diagram of one of the utility model alternative embodiment power control circuit.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is the functional block diagram of one of the utility model embodiment power control circuit；The present embodiment is applicable to
The case where driving power equipment, the power control circuit are arranged in the control circuit of power-supply device.
Specifically, as shown in Figure 1, the power control circuit specifically includes that parallel LLC converter 110, controller 120
With sampling module 130；Parallel LLC converter 110 includes the first LLC conversion module 111 and the 2nd LLC conversion module 112, the
One LLC conversion module 111 is connect with the first output end of controller 120, and, the 2nd LLC conversion module 112 and controller
120 second output terminal connection；The output end of sampling module 130 is connect with the input terminal of controller 120.
Controller 120, the sampled signal for being exported according to sampling module 130 generate first control signal and the second control
Signal, and first control signal is exported to the first LLC conversion module 111, second control signal is exported to the 2nd LLC and is converted
Module 112, to control the first LLC conversion module 111 and 112 parallel running of the 2nd LLC conversion module.
Further, sampled signal includes voltage sampling signal and current sampling signal.The input of the sampling module 130
End is connect with parallel LLC converter 110, for acquiring input voltage in parallel LLC converter 110, generates voltage sample
Signal, and the electric current that parallel LLC converter 110 flows through power device is acquired, generate current sampling signal.
Sampling module 130 exports voltage sampling signal and current sampling signal to controller 120,120 basis of controller
Voltage sampling signal and current sampling signal generate first control signal and second control signal, and first control signal is exported
To the first LLC conversion module 111, second control signal is exported to the 2nd LLC conversion module 112, to control the first LLC transformation
112 parallel running of module 111 and the 2nd LLC conversion module.In the present embodiment, it will be replaced with two-way LLC conversion module existing
LLC conversion module all the way in technology, so that the current stress that each device is born in primary circuit reduces half, convenient for device
Type selecting and design.
Power control circuit provided by the embodiment of the utility model, by by the of the first LLC conversion module and controller
The second output terminal of the connection of one output end, the 2nd LLC conversion module and controller connects；The output end and controller of sampling module
Input terminal connection so that controller can according to sampling module export sampled signal generate first control signal and second control
Signal, and first control signal is exported to the first LLC conversion module, second control signal is exported to the 2nd LLC and converts mould
Block, to control the first LLC conversion module and the 2nd LLC conversion module parallel running.As it can be seen that the controller in the present embodiment can root
Two path control signal is generated according to sampled signal, is exported respectively to the first LLC conversion module and the 2nd LLC conversion module, with control
First LLC conversion module and the 2nd LLC conversion module parallel running reduce each component in parallel LLC converter
Current stress, and then the turn ratio of transformer is reduced, it solves existing power supply control circuit and is set using single-stage Industrial Frequency Transformer
Complete machine assembling caused by meter is complicated, problem at high cost simplifies whole so that the type selecting range of component is wide, saves cost
The installation steps of machine and space.
Further, Fig. 2 is the functional block diagram of one of the utility model alternative embodiment power control circuit, is such as schemed
Shown in 2, parallel LLC converter 110 further includes DC power supplier 113；The input terminal of first LLC conversion module 111 and
The input terminal of two LLC conversion modules 112 is connect with DC power supplier 113 respectively；The output end of first LLC conversion module 111
It is connect respectively with the load of power control circuit with the output end of the 2nd LLC conversion module 112；First LLC conversion module, 111 He
2nd LLC conversion module 112 is used to driving load and works normally.
Further, parallel LLC converter 110 further includes output rectification module 114；Wherein, the first LLC conversion module
111 include: that submodule 1111 and the first LLC resonance submodule 1112 occur for the first square wave；2nd LLC conversion module 112 includes:
Submodule 1121 and the 2nd LLC resonance submodule 1122 occur for the second square wave；The input terminal of first square wave generation submodule 1111
The input terminal that submodule 1121 occurs with the second square wave is connect with DC power supplier 113 respectively, and submodule occurs for the first square wave
1111 output end is connect with the input terminal of the first LLC resonance submodule 1112, and the output of submodule 1121 occurs for the second square wave
End is connect with the input terminal of the 2nd LLC resonance submodule 1122, the output end and the 2nd LLC of the first LLC resonance submodule 1121
The output end of resonance submodule 1122 is connect with the input terminal of output rectification module 114.Export the output end of rectification module 114
It is connected with the load.
In the present embodiment, DC power supplier 113 is used to provide DC power supply for parallel LLC converter 110.Square wave
Submodule occurs to be used to that direct current to be converted to square-wave signal according to control signal, such as the first square wave occurs submodule 1111 and is used for
When controlling the turn-on and turn-off of the first transistor Q1 and second transistor Q2 in square wave generation submodule according to first control signal
Between, so that direct current is converted to square-wave signal, for another example, the second square wave occurs submodule 1121 and is used for according to second control signal
The turn-on and turn-off time that third transistor Q3 and the 4th transistor Q4 in submodule occur for square wave is controlled, so that direct current be turned
It is changed to square-wave signal.LLC resonance submodule is used for current waveform and voltage after square-wave signal is input to LLC resonance submodule
Waveform generates phase difference, and exports sinusoidal AC voltage signal, and such as the first LLC resonance submodule 1121 passes through the first LLC resonance
Resonant inductance and resonant capacitance in submodule constitute two resonant frequency points, so that passing through the electric current and voltage waveform of transformer
Variation, and then square-wave signal is changed into sinusoidal AC voltage signal, the 2nd LLC resonance submodule 1122 is humorous by the 2nd LLC
Two resonant frequency points that resonant inductance and resonant capacitance in oscillator module are constituted, so that passing through the electric current and voltage of transformer
Waveform variation, and then square-wave signal is changed into sinusoidal AC voltage signal.Rectification module 114 is exported to be used to believe alternating voltage
Rectification processing number is carried out, output d. c. voltage signal is to loading, for loading normal use.
It should be noted that DC power supplier 113 can be rectification circuit, D.C. regulated power supply or dry cell, storage
Battery, dc generator etc. are not defined the form and type of DC power supplier 113 in the present embodiment.First square wave
It is full-bridge square-wave generator or half-bridge square-wave generator that submodule, which occurs, and submodule occurs for the second square wave for the generation of full-bridge square wave
Device or half-bridge square-wave generator；It should be noted that the form and type of square wave generator are not limited in the present embodiment
It is fixed.The form and type of LLC resonance submodule are not defined in the present embodiment.
Further, Fig. 3 is the structural schematic diagram of one of the utility model alternative embodiment power control circuit；Such as
Shown in Fig. 3, in the present embodiment, DC power supplier 113 is preferably rectification module, specifically, including input capacitance C12, whole
Current circuit and output filter capacitor C11, specifically, rectification circuit includes the 7th diode D7, the 8th diode D8, the 9th 2 pole
Pipe D9 and the tenth diode D10.It should be noted that the rectification circuit in the present embodiment is preferably full bridge rectifier, in reality
In the application of border, it can according to need and design suitable rectification circuit, not to the connection relationship of rectification circuit and class in the present embodiment
Type is defined.
Further, it includes the first transistor Q1 and second transistor Q2, second party that submodule 1111, which occurs, for the first square wave
It includes third transistor Q3 and the 4th transistor Q4 that submodule 1121, which occurs, for wave；The first pole of the first transistor Q1 and DC power supply
The anode connection of module 113；The second pole of the first transistor Q1 is connect with the first pole of second transistor Q2；Second transistor Q2
The second pole and DC power supplier 113 cathode connect and ground；The first pole of third transistor Q3 and DC power supplier
113 anode connection；The second pole of third transistor Q3 is connect with the first pole of the 4th transistor Q4；The of 4th transistor Q4
Two poles are connect with the cathode of DC power supplier 113.
It should be noted that submodule 1111 occurs for the first square wave and submodule occurs for the second square wave in the present embodiment
1121 preferably half-bridge square-wave generators can be designed according to the working environment and power demand of circuit and be closed in practical applications
Submodule occurs for suitable square wave.The connection relationship of submodule is not occurred to square wave in the present embodiment and type is defined.
Preferably, transistor is preferably field-effect tube, the drain electrode of the extremely field-effect tube of the first of transistor, transistor
The source electrode of two extremely field-effect tube, the grid of the third of transistor extremely field-effect tube.It should be noted that in the present embodiment,
The type of transistor is not defined, suitable transistor can be designed according to the working environment and power demand of circuit.
Further, the first LLC resonance submodule 1112 include: first capacitor C1, the second capacitor C2, the first inductance L1 and
First transformer T1；Wherein, the first end of first capacitor C1 is connect with the first pole of the first transistor Q1, and the of first capacitor C1
Two ends are connect with the first end of the first end of the second capacitor C2 and the first inductance respectively, and the second end of the second capacitor C2 is brilliant with second
The second pole of body pipe Q2 connects；The second end of first inductance L1 is connect with the first end of the first transformer T1 primary winding, and first
The second end of transformer T1 primary winding is connect with the second pole of the first transistor Q1, the first winding of secondary side of the first transformer T1
It is connected with load, the second winding of secondary side of the first transformer T1 is connect with output rectification module.
Further, the 2nd LLC resonance submodule 1122 include: third capacitor C3, the 4th capacitor C4, the second inductance L2 and
Second transformer T2；The first end of third capacitor C3 is connect with the first pole of third transistor Q3, the second end of third capacitor C3
It is connect respectively with the first end of the first end of the 4th capacitor C4 and the second inductance L2, the second end and the 4th crystal of the 4th capacitor C4
The second pole of pipe Q4 connects；The second end of second inductance L2 is connect with the first end of the second transformer T2 primary side winding, and second becomes
The second end of depressor T2 primary side winding is connect with the second pole of third transistor Q3, the first winding of secondary side of the second transformer T2 with
The second winding of secondary side of 150 connection of load, the second transformer T2 is connect with output rectification module 1141.
It should be noted that the first transformer T1 is high frequency ferrite transformer, the second transformer T2 is high frequency ferrite
Transformer.In the present embodiment, with two high frequency ferrite transformers instead of the bulky silicon steel sheet transformation of volume in primary circuit
Device simplifies installation steps and the space of complete machine.
In the present embodiment, the connection relationship of two kinds of transformer secondary windings is provided, a kind of transformer winding connection relationship is
The primary side winding of transformer is in parallel, the connection type of secondary the second winding parallel of side, as shown in figure 3, output rectification module 1141 wraps
Include first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th capacitor C5, the 6th capacitor C6,
7th capacitor C7 and the 8th capacitor C8；The first end of the second winding of secondary side of first transformer T1 is respectively with first diode D1's
The connection of the D2 anode of cathode and the second diode, the cathode of the second diode D2 are connect with the anode of third diode D3, third
The cathode of diode D2 connects with the anode of the first end of the second winding of secondary side of the second transformer T2 and the 4th diode D4 respectively
It connects；The anode of first diode D1 and load connect；The first end of 5th capacitor C5 is connect with the anode of first diode D1, the
The second end of five capacitor C5 connects with the second end of the second winding of secondary side of the first transformer T1 and the first end of the 6th capacitor respectively
It connects, the second end of the 6th capacitor C6 is connect with the cathode of the second diode D2；The first end of 7th capacitor C7 and the described 3rd 2
The anode of pole pipe D3 connects, the second end of the 7th capacitor C7 respectively with the second end of the second winding of secondary side of the second transformer T2 and
The first end of 8th capacitor C8 connects, and the second end of the 8th capacitor C8 is connect with the cathode of the 4th diode D2.
Further, Fig. 4 is the structural schematic diagram of one of the utility model alternative embodiment power control circuit；Such as
Shown in Fig. 4, the difference of Fig. 3 and Fig. 4 is only that transformer secondary winding is different with the output connection relationship of rectification module.This implementation
Another transformer winding connection relationship provided in example is that the primary side winding of transformer is in parallel, the company of secondary the second windings in series of side
Mode is connect, as shown in figure 4, output rectification module 1142 includes the 5th diode D5, the 6th diode D6, the 9th capacitor C9 and the
Ten capacitor C10；The secondary first end in the second winding of first transformer T1 and the second transformer T2 it is secondary while the second winding the
The connection of two ends；The first end of the second winding of secondary side of second transformer T2 respectively with the cathode of the 5th diode D5 and the six or two pole
The anode of pipe D6 connects；The second end of the second winding of secondary side of first transformer T1 passes through the 9th capacitor C9 and the 5th diode D5
Anode connection, the second end of the second winding of secondary side of the first transformer T1 passes through the tenth capacitor C10's and the 6th diode D6
Cathode connection.
In the present embodiment, the preferably magnetron of load 150, it should be noted that can be true according to the type of load 150
Surely the specific connection relationship of rectification output module 114 and load, the not type to load 150 and rectification output mould in the present embodiment
Block 114 and the connection relationship of load are defined.
Further, foregoing circuit further include: the first pulse signal adjuster 116 and the second pulse signal adjuster 117；
The input terminal of first pulse signal adjuster 116 is connect with the first output end of controller 120, the first pulse signal adjuster
116 the first output end is connect with the third pole of the first transistor Q1, the second output terminal of the first pulse signal adjuster 116 with
The third pole of second transistor Q2 connects, the input terminal of the second pulse signal adjuster 117 and the second output terminal of controller 120
Connection, the first output end of the second pulse signal adjuster 117 are connect with the third pole of third transistor Q3, the second pulse signal
The second output terminal of adjuster 117 is connect with the third pole of the 4th transistor Q4.
Specifically, the first control signal that control 120 exports is adjusted to two-way phase by the first pulse signal adjuster 116
The pulse signal for differing 180 degree is respectively used to the conducting of control the first transistor Q1 and second transistor Q2, so that first crystal
The conduction phase angle of pipe Q1 and second transistor Q2 differ 180 degree.What the second pulse signal adjuster 117 exported control 120
Second control signal is adjusted to the pulse signal of two-way phase phase difference 180 degree, is respectively used to control third transistor Q3 and the 4th
The conducting of transistor, so that the conduction phase angle of third transistor Q3 and the 4th transistor Q4 differ 180 degree.In this way, can make
It obtains power switch loss to be preferably minimized, the transfer efficiency of power supply is provided.
Further, sampling module 130 includes voltage sample submodule and current sample submodule, voltage sample submodule packet
First resistor R1, second resistance R2 and 3rd resistor R3 are included, one end passes through Half bridge rectifier circuit after the series connection of above three resistance
Alternating current is connect, one end of 3rd resistor R3 is connect with the first input end of controller 120, for believing collected voltage sample
Number output when controller 120.Current sample submodule include the 5th resistance RS1 and the 6th resistance RS2, the one of the 5th resistance RS1
End is connect with the second input terminal of the second pole of second transistor Q2 and controller 120 respectively, another termination of the 5th resistance RS1
Ground.6th one end resistance RS2 is connect with the third input terminal of the second pole of the 4th transistor Q4 and controller 120 respectively, and the 6th
The other end of resistance RS2 is grounded.Current sample submodule for acquiring the electric current for flowing through transistor, and by sample rate current export to
Controller 120.
Controller 120 generates first control signal according to voltage sampling signal and current sampling signal and the second control is believed
Number, it is exported respectively to the first pulse signal adjuster 116 and the second pulse signal adjuster 117, the first pulse signal adjuster
116 are adjusted to first control signal the pulse signal of two-way phase phase difference 180 degree, be respectively used to control the first transistor Q1 and
The conducting of second transistor Q2, so that the conduction phase angle of the first transistor Q1 and second transistor Q2 differ 180 degree.Second arteries and veins
The pulse signal that second control signal is adjusted to two-way phase phase difference 180 degree by signal conditioner 117 is rushed, control is respectively used to
The conducting of three transistor Q3 and the 4th transistor Q4, so that the conduction phase angle of third transistor Q3 and the 4th transistor Q4 differ
180 degree.Two-way LLC conversion module can be made to simultaneously turn in this way, so that the current stress that each device is born reduces half,
Convenient for the type selecting and design of device.
The utility model embodiment additionally provides a kind of equipment, and the equipment includes as any in what is provided in above-described embodiment
The power control circuit.
Power control circuit provided by the utility model any embodiment can be performed in above equipment, has execution circuit phase
The functional module and beneficial effect answered.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (11)
1. a kind of power control circuit characterized by comprising parallel LLC converter, controller and sampling module；
The parallel LLC converter includes the first LLC conversion module and the 2nd LLC conversion module, and the first LLC converts mould
Block is connect with the first output end of the controller, and, the second output of the 2nd LLC conversion module and the controller
End connection；
The output end of the sampling module is connect with the input terminal of the controller；
The controller, the sampled signal for being exported according to sampling module generate first control signal and second control signal,
And export the first control signal to the first LLC conversion module, the second control signal is exported to described
Two LLC conversion modules, to control the first LLC conversion module and the 2nd LLC conversion module parallel running.
2. circuit according to claim 1, which is characterized in that the parallel LLC converter further includes DC power supply mould
Block；
Wherein, the input terminal of the input terminal of the first LLC conversion module and the 2nd LLC conversion module respectively with it is described straight
The connection of galvanic electricity source module；
The output end of the output end of the first LLC conversion module and the 2nd LLC conversion module respectively with the power supply control
The load of circuit processed connects；
The first LLC conversion module and the 2nd LLC conversion module are used to that the load is driven to work normally.
3. circuit according to claim 2, which is characterized in that the parallel LLC converter further includes output rectification mould
Block；
Wherein, the first LLC conversion module includes: that submodule and the first LLC resonance submodule occur for the first square wave；Described
Two LLC conversion modules include: that submodule and the 2nd LLC resonance submodule occur for the second square wave；
The input terminal of submodule occurs for first square wave and second square wave occur the input terminal of submodule respectively with it is described
The input of the output end and the first LLC resonance submodule of submodule occurs for DC power supplier connection, first square wave
End connection, the output end that submodule occurs for second square wave is connect with the input terminal of the 2nd LLC resonance submodule, described
The output end of the output end of first LLC resonance submodule and the 2nd LLC resonance submodule with the output rectification module
Input terminal connection.
4. circuit according to claim 3, which is characterized in that it includes the first transistor that submodule, which occurs, for first square wave
And second transistor, it includes third transistor and the 4th transistor that submodule, which occurs, for second square wave；
First pole of the first transistor is connect with the anode of the DC power supplier；Second pole of the first transistor
It is connect with the first pole of the second transistor；Second pole of the second transistor and the cathode of the DC power supplier connect
It connects；
First pole of the third transistor is connect with the anode of the DC power supplier；Second pole of the third transistor
It is connect with the first pole of the 4th transistor；Second pole of the 4th transistor and the cathode of the DC power supplier connect
It connects.
5. circuit according to claim 4, which is characterized in that the first LLC resonance submodule include: first capacitor,
Second capacitor, the first inductance and the first transformer；
Wherein, the first end of the first capacitor is connect with the first pole of the first transistor, and the second of the first capacitor
End connect respectively with the first end of the first end of second capacitor and first inductance, the second end of second capacitor and
Second pole of the second transistor connects；
The second end of first inductance is connect with the first end of first transformer primary winding, first transformer primary
The second end of side winding is connect with the second pole of the first transistor, the first winding of secondary side of first transformer with it is described
Load connection, the second winding of secondary side of first transformer are connect with the output rectification module.
6. circuit according to claim 5, which is characterized in that the 2nd LLC resonance submodule include: third capacitor,
4th capacitor, the second inductance and the second transformer；
Wherein, the first end of the third capacitor is connect with the first pole of the third transistor, and the second of the third capacitor
End connect respectively with the first end of the first end of the 4th capacitor and second inductance, the second end of the 4th capacitor and
Second pole of the 4th transistor connects；
The second end of second inductance is connect with the first end of second transformer primary winding, second transformer primary
The second end of side winding is connect with the second pole of the third transistor, the first winding of secondary side of second transformer with it is described
Load connection, the second winding of secondary side of second transformer are connect with the output rectification module.
7. circuit according to claim 6, which is characterized in that submodule occurs for first square wave for the generation of full-bridge square wave
Perhaps submodule occurs device for half-bridge square-wave generator second square wave for full-bridge square-wave generator or the generation of half-bridge square wave
Device；First transformer is high frequency ferrite transformer, and the second transformer is high frequency ferrite transformer.
8. circuit according to claim 6, which is characterized in that the output rectification module includes first diode, second
Diode, third diode, the 4th diode, the 5th capacitor, the 6th capacitor, the 7th capacitor and the 8th capacitor；
Wherein, the first end of the second winding of secondary side of the first transformer respectively with the cathode of the first diode and described second
The anode of diode connects, and the cathode of second diode is connect with the anode of the third diode, the three or two pole
The cathode of pipe is connect with the anode of the first end of the second winding of secondary side of second transformer and the 4th diode respectively；
The anode of the first diode and the load connect；
The first end of 5th capacitor is connect with the anode of the first diode, the second end of the 5th capacitor respectively with
The second end of the second winding of secondary side of first transformer is connected with the first end of the 6th capacitor, the 6th capacitor
Second end is connect with the cathode of second diode；
The first end of 7th capacitor is connect with the anode of the third diode, the second end of the 7th capacitor respectively with
The second end of the second winding of secondary side of second transformer is connected with the first end of the 8th capacitor, the 8th capacitor
Second end is connect with the cathode of the 4th diode.
9. circuit according to claim 6, which is characterized in that the output rectification module includes the 5th diode, the 6th
Diode, the 9th capacitor and the tenth capacitor；
Wherein, the secondary first end in the second winding of the first transformer and second transformer it is secondary while the second winding second
End connection；
The first end of the second winding of secondary side of second transformer cathode and the described 6th with the 5th diode respectively
The anode of diode connects；
The second end of the second winding of secondary side of first transformer passes through the sun of the 9th capacitor and the 5th diode
The second end of pole connection, the second winding of secondary side of first transformer passes through the tenth capacitor and the 6th diode
Cathode connection.
10. circuit according to claim 5, which is characterized in that further include: the first pulse signal adjuster and the second pulse
Signal conditioner；
The input terminal of the first pulse signal adjuster is connect with the first output end of the controller, the first pulse letter
Number the first output end of adjuster is connect with the third pole of the first transistor, and the second of the first pulse signal adjuster
Output end is connect with the third pole of the second transistor,
The input terminal of the second pulse signal adjuster is connect with the second output terminal of the controller, the second pulse letter
Number the first output end of adjuster is connect with the third pole of the third transistor, and the second of the second pulse signal adjuster
Output end is connect with the third pole of the 4th transistor.
11. a kind of equipment, which is characterized in that the equipment includes the power control circuit as described in claims 1 to 10 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206347.XU CN209435116U (en) | 2019-02-18 | 2019-02-18 | Power supply control circuit and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206347.XU CN209435116U (en) | 2019-02-18 | 2019-02-18 | Power supply control circuit and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209435116U true CN209435116U (en) | 2019-09-24 |
Family
ID=67978072
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|---|---|---|---|
| CN201920206347.XU Active CN209435116U (en) | 2019-02-18 | 2019-02-18 | Power supply control circuit and equipment |
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| Country | Link |
|---|---|
| CN (1) | CN209435116U (en) |
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2019
- 2019-02-18 CN CN201920206347.XU patent/CN209435116U/en active Active
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Effective date of registration: 20200409 Address after: 510530 Guangdong city of Guangzhou province YUNPU Whampoa district four Road No. 6 Patentee after: Guangzhou Shiyuan Electronic Technology Company Limited Address before: 510530, No. four, 6, Po Po Road, Yun Po Industrial Zone, Whampoa District, Guangzhou, Guangdong Co-patentee before: GUANGZHOU RUIXIN ELECTRONICS Co.,Ltd. Patentee before: Guangzhou Shiyuan Electronic Technology Company Limited |