CN109767715A - Soft-start circuit, integrated power supply management circuit and display equipment - Google Patents
Soft-start circuit, integrated power supply management circuit and display equipment Download PDFInfo
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- CN109767715A CN109767715A CN201910179781.8A CN201910179781A CN109767715A CN 109767715 A CN109767715 A CN 109767715A CN 201910179781 A CN201910179781 A CN 201910179781A CN 109767715 A CN109767715 A CN 109767715A
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Abstract
The present invention relates to a kind of soft-start circuit, integrated power supply management circuit and display equipment, are related to showing equipment technical field.The technical solution mainly used are as follows: soft-start circuit comprising: input terminal and output end, the first control module, the second control module；The first resistor being arranged in parallel and the first transistor are connected among the input terminal and the output end；First control module is connect with the control terminal of the first transistor, for controlling the conducting of the first transistor；Second control module is connected between the input terminal and ground terminal, and is connect with first control module, and second control module can control the starting of first control module after the preset time that charges；Wherein, it is in starting state in first control module, first control module can control the first transistor and turn it on.The soft-start circuit is able to solve integrated power supply management circuit and shoves in booting moment excessive problem.
Description
Technical field
The present invention relates to display equipment technical fields, manage circuit more particularly to a kind of soft-start circuit, integrated power supply
And display equipment.
Background technique
Integrated power supply manages circuit (Power Management Integrated Circuits, PMIC), is in electronics
The responsibility of transformation to electric energy, distribution, detection and other electric energy managements is shouldered in device systems, is mainly responsible for identification CPU
Power supply amplitude generates corresponding short square wave, late-class circuit is pushed to carry out power output, can be used in the switch electricity of display equipment
Source.
But the not set soft start function of output of integrated power supply management circuit in the prior art, cause booting moment
The electric current that shoves is excessive, and the input VDD of display equipment is caused to be pulled low the problem of reaching low-voltage variation, causing screen that can not light.
Above-mentioned technical problem is badly in need of solving.
Summary of the invention
It is a primary object of the present invention to, provide a kind of new structural soft-start circuit, integrated power supply management circuit and
It shows equipment, it is excessive can to solve the problems, such as that integrated power supply management circuit in the prior art shoves in booting moment.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention
A kind of soft-start circuit comprising:
The first resistor being arranged in parallel and are connected among input terminal and output end, the input terminal and the output end
One transistor；
First control module, first control module is connect with the control terminal of the first transistor, for controlling
State the conducting of the first transistor；
Second control module, second control module are connected between the input terminal and ground terminal, and with described
The connection of one control module, second control module can control opening for first control module after the preset time that charges
It is dynamic；
Wherein, it is in starting state in first control module, first control module can control described first
Transistor turns it on.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Optionally, soft-start circuit above-mentioned, wherein first control module includes second transistor, described second is brilliant
The first end of body pipe and the control terminal of the first transistor connect, and the second end of the second transistor is connect with the ground terminal,
The control terminal of the second transistor is connect with second control module.
Optionally, soft-start circuit above-mentioned, wherein first control module further includes second resistance, second electricity
Resistance is connected between the control terminal of the first transistor and the first end of the second transistor.
Optionally, soft-start circuit above-mentioned, wherein first control module further includes 3rd resistor, the third electricity
Resistance is connected between the second end of the second transistor and the ground terminal.
Optionally, soft-start circuit above-mentioned, wherein second control module includes voltage-stabiliser tube and first capacitor；
Wherein, it is connected to after the voltage-stabiliser tube is in parallel with the first capacitor between the input terminal and ground terminal.
Optionally, soft-start circuit above-mentioned, wherein second control module further includes the 4th resistance, the 4th electricity
Resistance is connected between the input terminal and the voltage-stabiliser tube.
Optionally, soft-start circuit above-mentioned, further include:
Protective module, the protective module are connected between the input terminal and the control terminal of the first transistor, are used
In the protection the first transistor.
Optionally, soft-start circuit above-mentioned, wherein the protective module includes the second capacitor and the 5th resistance；
Wherein, the input terminal and the first transistor are connected to after second capacitor and the 5th resistor coupled in parallel
Control terminal between.
In addition, the present invention also provides a kind of integrated power supplies to manage circuit comprising: soft-start circuit；
The soft-start circuit includes:
The first resistor being arranged in parallel and are connected among input terminal and output end, the input terminal and the output end
One transistor；
First control module, first control module is connect with the control terminal of the first transistor, for controlling
State the conducting of the first transistor；
Second control module, second control module are connected between the input terminal and ground terminal, and with described
The connection of one control module, second control module can control opening for first control module after the preset time that charges
It is dynamic；
Wherein, it is in starting state in first control module, first control module can control described first
Transistor turns it on；
Wherein, the power supply output end of the integrated power supply management circuit body is arranged in the soft-start circuit.
In addition, the present invention also provides a kind of display equipment comprising: integrated power supply manages circuit；
The integrated power supply management circuit includes: soft-start circuit；
The soft-start circuit includes:
The first resistor being arranged in parallel and are connected among input terminal and output end, the input terminal and the output end
One transistor；
First control module, first control module is connect with the control terminal of the first transistor, for controlling
State the conducting of the first transistor；
Second control module, second control module are connected between the input terminal and ground terminal, and with described
The connection of one control module, second control module can control opening for first control module after the preset time that charges
It is dynamic；
Wherein, it is in starting state in first control module, first control module can control described first
Transistor turns it on；
Wherein, the power supply output end of the integrated power supply management circuit body is arranged in the soft-start circuit.
By above-mentioned technical proposal, soft-start circuit, integrated power supply management circuit and display equipment of the present invention at least have
Following advantages:
Soft-start circuit provided in an embodiment of the present invention can be connected to existing integrated power supply management circuit body
Power supply output end, in integrated power supply management circuit body output starting voltage/current, soft-start circuit can pass through input
End, first resistor and output end form the first access, on an electronic device by the effect of starting voltage/current, at this time due to slow
The presence of the first resistor of start-up circuit, starting voltage/current can slowly export electron equipment, it can realize to electricity
The delay startup of sub- equipment solves the problems, such as that shoving for starting moment is excessive.Further soft-start circuit is additionally provided with first
Control module and the second control module, after starting voltage/current charges preset time to the second control module, the second control mould
Block starts the first control module, and the first transistor is connected, and makes the input terminal of soft-start circuit, the first transistor and defeated
Outlet forms alternate path conducting, while by the first path blockade with first resistor, in this way due to being the in alternate path
For one transistor as switch element, there is no pressure drops after starting voltage/current flows through, and then make electronic equipment normal
Work when, there is no starting voltage problem of pressure drop, can play save power consumption effect.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for soft-start circuit that the embodiment of the present invention provides.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to soft-start circuit proposed according to the present invention, integrated power supply management circuit and display equipment, tool
Body embodiment, structure, feature and its effect, detailed description is as follows.In the following description, different " embodiment " or " real
Apply example " refer to be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by appointing
What suitable form combination.
Embodiment one
As shown in Figure 1, a kind of soft-start circuit that the embodiment of the present invention one proposes comprising: input terminal 1 and output end
2, the first control module 3, the second control module 4；Be arranged in parallel is connected among the input terminal 1 and the output end 2
One resistance R1 and the first transistor Q1, the input terminal 1, first resistor R1 and output end 2 form the first access, the input
End 1, the first transistor Q1 and output end 2 form alternate path；The first control module 3 and the first transistor Q1's
Control terminal connection, for controlling the conducting of the first transistor Q1；Second control module 4 is connected to the input terminal 1
It is connect between ground terminal GND, and with first control module 3, second control module 4 can be in charging preset time
Afterwards, the starting of first control module 3 is controlled；Wherein, starting state is in first control module 3, described first
Control module 3 can control the first transistor Q1 and turn it on.
Specifically, soft-start circuit integrally can be through the circuit structure that etching is formed in advance on a printed circuit,
And the connection of the soft-start circuit electronic component and circuit that are included, it can be reserved connection while etching forms circuit
Point can by welding connect the electronic component for being included in circuit.Wherein, input terminal 1 and output end 2 can be with
It is the reserved electric connecting terminal of soft-start circuit, can be the form of the form of metal connecting pin, welding ends or the jointing holes that are electrically connected.
Ground terminal GND can be setting One Common Earthing Electrode on circuit boards, be also possible to that soft-start circuit is separately provided for connecing
The connecting pin on ground.First resistor R1 needs to choose suitable resistance value according to the needs of use, and first resistor R1 can make to load
It is slowly exported from output end 2 in the starting voltage/current of input terminal 1, i.e., the first access may be implemented to delay electronic equipment
Starting.The first transistor Q1 be include the transistor of control terminal, such as P-channel isolated gate FET, i.e., enhanced MOS
Pipe, the source electrode of metal-oxide-semiconductor are connect with input terminal 1, and drain electrode is connect with output end 2, and control terminal, that is, grid and the first control module 3 connect
It connects, the conducting of alternate path can be realized by the control to the first transistor Q1 control terminal.First control module 3 is for controlling
The module of the first transistor Q1 conducting processed, can be through the on-load voltage for the control terminal for controlling the first transistor Q1 and controls
The conducting of the first transistor Q1.The delay function that second control module 4 needs to have certain needs it can be in starting electricity
Pressure/electric current charges to it after preset time, reaches the condition of control the first control module 3 starting, such as the second control module 4
It can be the voltage that can export a certain size after the preset time that charges, and then control the starting of the first control module 3.It is comprehensive
On, the setting of the first control module 3 and the second control module 4 can guarantee to manage circuit body output starting in integrated power supply
It after voltage/current, is first connected the first access, is used for delay startup electronic equipment, then the second control after the preset time
Module 4 starts the first control module 3, and the first transistor Q1 is connected in the first control module 3, i.e., alternate path is connected and first leads to
Road is closed, and realizes the power electronic equipment that zero-decrement starting voltage/current is.
Soft-start circuit provided in an embodiment of the present invention can be connected to existing integrated power supply management circuit body
Power supply output end, in integrated power supply management circuit body output starting voltage/current, soft-start circuit can pass through input terminal
1, first resistor R1 and output end 2 form the first access, will the effect of starting voltage/current on an electronic device, at this time due to
The presence of the first resistor R1 of soft-start circuit, starting voltage/current can slowly export electron equipment, it can realize
To the delay startup of electronic equipment, solve the problems, such as that shoving for starting moment is excessive.Further soft-start circuit is additionally provided with
First control module 3 and the second control module 4, after starting voltage/current charges preset time to the second control module 4, the
Two control modules 4 start the first control module 3, and the first transistor Q1 is connected, make soft-start circuit input terminal 1, the
One transistor Q1 and output end 2 form alternate path conducting, while by the first path blockade with first resistor R1, in this way
Due to being the first transistor Q1 in alternate path as switch element, there is no pressure drop after starting voltage/current flows through,
And then make electronic equipment in normal work, there is no the problem of pressure drop of starting voltage, the effect for saving power consumption can be played.
As shown in Figure 1, in specific implementation, wherein first control module 3 includes second transistor Q2, described second
The first end of transistor Q2 is connect with the control terminal of the first transistor Q1, the second end of the second transistor Q2 and the ground connection
GND connection is held, the control terminal of the second transistor Q2 is connect with second control module 4.
Specifically, the second transistor Q2 can be triode, such as NPN type triode, such second transistor Q2
First end and second end be connected between the control terminal of the first transistor Q1 and ground terminal GND, be in the first transistor Q1
One switch is set between ground terminal GND, after the control terminal of second transistor Q2 receives control signal, so that it may realize
The connection of the control terminal of the first transistor Q1 and ground terminal GND, makes the control terminal of the first transistor Q1 be in low potential, in this way when
After the first transistor Q1 selects p-type metal-oxide-semiconductor, since the first transistor Q1 is input terminal 1 and the output for being connected to soft-start circuit
End 2, i.e. one end that the first transistor Q1 is connected to input terminal 1 is in high potential, then the first transistor Q1 may be implemented at this time
Conducting.And then it can control the first transistor Q1's by the conducting of the second transistor Q2 in the first control module 3 of control
Conducting.
As shown in Figure 1, further, first control module 3 further includes second resistance R3, and the second resistance R3 connects
It connects between the control terminal of the first transistor Q1 and the first end of the second transistor Q2；First control module 3
Further include 3rd resistor R6, the 3rd resistor R6 be connected to the second transistor Q2 second end and the ground terminal GND
Between.
Specifically, suitable resistance value can be arranged in second resistance R3 and 3rd resistor R6 according to the needs of use, wherein third
Resistance R6 avoids second transistor Q2 impaired in conducting for protecting second transistor Q2, and second resistance R3 is used for as the
The pressure maintaining resistance of one transistor Q1 avoids that the voltage mistake of the control terminal of moment the first transistor Q1 is connected in second transistor Q2
It is small.
As shown in Figure 1, in specific implementation, wherein second control module 4 includes voltage-stabiliser tube D1 and first capacitor C2；
Wherein, it is connected to after the voltage-stabiliser tube D1 is in parallel with the first capacitor C2 between the input terminal 1 and ground terminal GND.
Specifically, since the second control module 4 is for starting the first control module 3, and needs the second control mould
Block 4 can reach the condition of the first control module 3 of starting after the preset time that charges, so the second control module 4 can make
The component for using first capacitor C2 as delay and charging uses, the amount of capacity of first capacitor C2 can according to the needs of use into
Row is selected.And the voltage-stabiliser tube D1 in parallel with first capacitor C2, pressure stabilizing state can be in after reaching certain voltage value, because
Voltage when voltage-stabiliser tube D1 reaches pressure stabilizing can be used in this, the control condition as control second transistor Q2 conducting.And then it is logical
The setting for crossing voltage-stabiliser tube D1 and first capacitor C2 controls the starting of the first control module 3 after can be realized charging preset time.
As shown in Figure 1, it is further, wherein second control module 4 further includes the 4th resistance R4, the 4th resistance
R4 is connected between the input terminal 1 and the voltage-stabiliser tube D1.
Specifically, the 4th resistance R4 is to avoid the starting from input terminal 1 for protecting first capacitor C2 and voltage-stabiliser tube D1
Voltage/current generates damage to first capacitor C2 and voltage-stabiliser tube D1 since moment is excessive.
As shown in Figure 1, in specific implementation, can also the control terminal of the second control module 4 and the first control module 3 it
Between the 6th resistance R5 is set, the resistance value size of the 6th resistance R5 can be configured according to the needs of use.
There is the first control module 3 and the second control mould of above structure in soft-start circuit provided in an embodiment of the present invention
After block 4, soft-start circuit is connected to the power supply output end of integrated power supply management circuit body, then manages circuit in integrated power supply
The working principle of soft-start circuit when starting electronic equipment are as follows:
The first access conducting that starting voltage/current first forms input terminal 1, first resistor R1 and output end 2, the
One resistance R1, which is realized, will start the slow output of voltage/current, reach delay startup effect, but first resistor R1 can be to opening at this time
Dynamic voltage causes certain decaying.It, can be to the second control mould while integrated power supply management circuit output starting voltage/current
First capacitor C2 in block 4 charges, and the pressure stabilizing value of voltage-stabiliser tube D1 is reached after being charged to certain voltage, such as can be
1.25V, the second transistor Q2 connecting at this time with the first control module 3 are switched on, input terminal 1, second resistance R3, the second crystal
Pipe Q2 and 3rd resistor R6 forms access, and the voltage of the first transistor Q1 i.e. control terminal of metal-oxide-semiconductor is made to be lower than the voltage of source electrode,
The first transistor Q1 is connected, alternate path is connected at this time, the first access is turned off, at this time almost without pressure drop on circuit, i.e.,
The case where being now in as electronic equipment normal power supply.
As shown in Figure 1, in specific implementation, soft-start circuit provided in an embodiment of the present invention, further includes: protective module 5,
The protective module 5 is connected between the input terminal 1 and the control terminal of the first transistor Q1, for protecting described first
Transistor Q1.
Further, the protective module 5 includes the second capacitor C1 and the 5th resistance R2；Wherein, the second capacitor C1
It is connected between the input terminal 1 and the control terminal of the first transistor Q1 after in parallel with the 5th resistance R2.
Specifically, protective module 5 avoids the first transistor Q1 i.e. grid of p-type metal-oxide-semiconductor for protecting the first transistor Q1
Voltage be higher than the voltage of source electrode, specific working method are as follows: the second capacitor C1 is under the action of starting voltage/current, the
Two capacitor C1 are started to charge while voltage gradually rises, and the second capacitor C1 is to be connected to input terminal 1 and the first transistor
Between the control terminal of Q1, therefore the presence of the second capacitor C1 can be higher than the voltage of source electrode to avoid the voltage of the grid of metal-oxide-semiconductor,
The first transistor Q1 is protected.In addition, stop power supply in integrated power supply management circuit, i.e., when screen powers off, delay startup electricity
1 power down of input terminal on road, the charge that the second capacitor C1 releases out at this time are born by the 5th resistance R2, will not by the first access to
Output end 2 generates electricity.
Embodiment two
A kind of integrated power supply that the embodiment of the present invention two proposes manages circuit comprising: soft-start circuit；It is described slow to open
Dynamic circuit includes: input terminal 1 and output end 2, the first control module 3, the second control module 4；The input terminal 1 and the output
The first resistor R1 being arranged in parallel and the first transistor Q1 are connected among end 2, the input terminal 1, first resistor R1 and defeated
Outlet 2 forms the first access, and the input terminal 1, the first transistor Q1 and output end 2 form alternate path；First control
Molding block 3 is connect with the control terminal of the first transistor Q1, for controlling the conducting of the first transistor Q1；Described second
Control module 4 is connected between the input terminal 1 and ground terminal GND, and is connect with first control module 3, described second
Control module 4 can control the starting of first control module 3 after the preset time that charges；Wherein, in first control
Module 3 is in starting state, and first control module 3 can control the first transistor Q1 and turn it on；Wherein, described
The power supply output end of the integrated power supply management circuit body is arranged in soft-start circuit.
Specifically, the delay startup of the offer of above-described embodiment one can be used directly in soft-start circuit described in the present embodiment two
Circuit, concrete implementation structure can be found in related content described in above-described embodiment one, and details are not described herein again.
Soft-start circuit provided in an embodiment of the present invention can be connected to existing integrated power supply management circuit body
Power supply output end, in integrated power supply management circuit body output starting voltage/current, soft-start circuit can pass through input terminal
1, first resistor R1 and output end 2 form the first access, will the effect of starting voltage/current on an electronic device, at this time due to
The presence of the first resistor R1 of soft-start circuit, starting voltage/current can slowly export electron equipment, it can realize
To the delay startup of electronic equipment, solve the problems, such as that shoving for starting moment is excessive.Further soft-start circuit is additionally provided with
First control module 3 and the second control module 4, after starting voltage/current charges preset time to the second control module 4, the
Two control modules 4 start the first control module 3, and the first transistor Q1 is connected, make soft-start circuit input terminal 1, the
One transistor Q1 and output end 2 form alternate path conducting, while by the first path blockade with first resistor R1, in this way
Due to being the first transistor Q1 in alternate path as switch element, there is no pressure drop after starting voltage/current flows through,
And then make electronic equipment in normal work, there is no the problem of pressure drop of starting voltage, the effect for saving power consumption can be played.
Embodiment three
A kind of display equipment that the embodiment of the present invention three proposes comprising: integrated power supply manages circuit；The integrated electricity
Power management circuits include: soft-start circuit；The soft-start circuit include: input terminal 1 and output end 2, the first control module 3,
Second control module 4；It is brilliant that the first resistor R1 being arranged in parallel and first is connected among the input terminal 1 and the output end 2
Body pipe Q1, the input terminal 1, first resistor R1 and output end 2 form the first access, the input terminal 1, the first transistor Q1
And output end 2 forms alternate path；First control module 3 is connect with the control terminal of the first transistor Q1, is used for
Control the conducting of the first transistor Q1；Second control module 4 is connected between the input terminal 1 and ground terminal GND,
And connect with first control module 3, second control module 4 can control described first after the preset time that charges
The starting of control module 3；Wherein, it is in starting state in first control module 3, first control module 3 can be controlled
The first transistor Q1 is made to turn it on；Wherein, the soft-start circuit setting manages circuit body in the integrated power supply
Power supply output end.
Specifically, the delay startup of the offer of above-described embodiment one can be used directly in soft-start circuit described in the present embodiment three
Circuit, concrete implementation structure can be found in related content described in above-described embodiment one, and details are not described herein again.
Soft-start circuit provided in an embodiment of the present invention can be connected to existing integrated power supply management circuit body
Power supply output end, in integrated power supply management circuit body output starting voltage/current, soft-start circuit can pass through input terminal
1, first resistor R1 and output end 2 form the first access, will the effect of starting voltage/current on an electronic device, at this time due to
The presence of the first resistor R1 of soft-start circuit, starting voltage/current can slowly export electron equipment, it can realize
To the delay startup of electronic equipment, solve the problems, such as that shoving for starting moment is excessive.Further soft-start circuit is additionally provided with
First control module 3 and the second control module 4, after starting voltage/current charges preset time to the second control module 4, the
Two control modules 4 start the first control module 3, and the first transistor Q1 is connected, make soft-start circuit input terminal 1, the
One transistor Q1 and output end 2 form alternate path conducting, while by the first path blockade with first resistor R1, in this way
Due to being the first transistor Q1 in alternate path as switch element, there is no pressure drop after starting voltage/current flows through,
And then make electronic equipment in normal work, there is no the problem of pressure drop of starting voltage, the effect for saving power consumption can be played.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of soft-start circuit, characterized in that it comprises:
The first resistor being arranged in parallel and the first crystalline substance are connected among input terminal and output end, the input terminal and the output end
Body pipe；
First control module, first control module are connect with the control terminal of the first transistor, for controlling described
The conducting of one transistor；
Second control module, second control module are connected between the input terminal and ground terminal, and are controlled with described first
The connection of molding block, second control module can control the starting of first control module after the preset time that charges；
Wherein, it is in starting state in first control module, first control module can control the first crystal
Pipe turns it on.
2. soft-start circuit according to claim 1, which is characterized in that
First control module includes second transistor, the first end of the second transistor and the control terminal of the first transistor
Connection, the second end of the second transistor are connect with the ground terminal, the control terminal of the second transistor and described second
Control module connection.
3. soft-start circuit according to claim 2, which is characterized in that
First control module further includes second resistance, the second resistance be connected to the first transistor control terminal and
Between the first end of the second transistor.
4. soft-start circuit according to claim 3, which is characterized in that
First control module further includes 3rd resistor, the 3rd resistor be connected to the second transistor second end and
Between the ground terminal.
5. soft-start circuit according to claim 1, which is characterized in that
Second control module includes voltage-stabiliser tube and first capacitor；
Wherein, it is connected to after the voltage-stabiliser tube is in parallel with the first capacitor between the input terminal and ground terminal.
6. soft-start circuit according to claim 5, which is characterized in that
Second control module further includes the 4th resistance, the 4th resistance be connected to the input terminal and the voltage-stabiliser tube it
Between.
7. soft-start circuit according to claim 1, which is characterized in that further include:
Protective module, the protective module is connected between the input terminal and the control terminal of the first transistor, for protecting
Protect the first transistor.
8. soft-start circuit according to claim 8, which is characterized in that
The protective module includes the second capacitor and the 5th resistance；
Wherein, the control of the input terminal and the first transistor is connected to after second capacitor and the 5th resistor coupled in parallel
Between end processed.
9. a kind of integrated power supply manages circuit, characterized in that it comprises:
The soft-start circuit as described in any in claim 1-8；
Wherein, the power supply output end of the integrated power supply management circuit body is arranged in the soft-start circuit.
10. a kind of display equipment, characterized in that it comprises:
Integrated power supply manages circuit as claimed in claim 9.
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| CN201910179781.8A CN109767715A (en) | 2019-03-11 | 2019-03-11 | Soft-start circuit, integrated power supply management circuit and display equipment |
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| CN201910179781.8A CN109767715A (en) | 2019-03-11 | 2019-03-11 | Soft-start circuit, integrated power supply management circuit and display equipment |
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| CN201910179781.8A Pending CN109767715A (en) | 2019-03-11 | 2019-03-11 | Soft-start circuit, integrated power supply management circuit and display equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232225A1 (en) * | 2020-05-19 | 2021-11-25 | 京东方科技集团股份有限公司 | Power supply management apparatus and display device |
| CN114420035A (en) * | 2022-03-30 | 2022-04-29 | 惠科股份有限公司 | Panel driving circuit and display panel |
| CN115425833A (en) * | 2022-09-29 | 2022-12-02 | 苏州浪潮智能科技有限公司 | Power supply slow starting circuit |
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| US11488507B2 (en) | 2020-05-19 | 2022-11-01 | Beijing Boe Display Technology Co., Ltd. | Power management device and display device |
| CN114420035A (en) * | 2022-03-30 | 2022-04-29 | 惠科股份有限公司 | Panel driving circuit and display panel |
| CN115425833A (en) * | 2022-09-29 | 2022-12-02 | 苏州浪潮智能科技有限公司 | Power supply slow starting circuit |
| CN115425833B (en) * | 2022-09-29 | 2024-01-12 | 苏州浪潮智能科技有限公司 | Power supply slow start circuit |
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