CN111901917B - Driving power supply, manufacturing method of driving power supply and electronic equipment - Google Patents
Driving power supply, manufacturing method of driving power supply and electronic equipment Download PDFInfo
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- CN111901917B CN111901917B CN202010761582.0A CN202010761582A CN111901917B CN 111901917 B CN111901917 B CN 111901917B CN 202010761582 A CN202010761582 A CN 202010761582A CN 111901917 B CN111901917 B CN 111901917B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention discloses a driving power supply, a manufacturing method of the driving power supply and electronic equipment, wherein the driving power supply comprises a control panel, a plurality of power generation plates and a plurality of power detection plates which correspond to one another one by one, wherein the control panel is used for controlling the work of the power generation plates and the power detection plates so that the driving power supply meets the preset output; the power generation board is used for generating voltage and current and driving a product to be tested; the power supply detection board is used for detecting the voltage and the current generated by the power supply generation board so as to ensure the real-time stability of the power supply state; the power generation boards and/or the power detection boards can be arranged on the control board in a pluggable mode. The invention improves the compatibility of the product through the modular design of interface compatibility.
Description
Technical Field
The invention relates to the technical field of photoelectric detection, in particular to a driving power supply, a manufacturing method of the driving power supply and electronic equipment.
Background
In most electronic products, the design of power supplies is typically done by Surface Mounted Technology (SMT) chip technology, where a single or multiple power supply circuits and other circuits are printed on the same printed circuit board PCB; in an electronic product, a plurality of different power supply specifications are often used, and due to different scenes and conditions of power supply application, each power supply needs to be laid out and wired, which brings great labor consumption; especially in Organic Light-Emitting Diode (OLED) driving power supply products, the number of power supply channels is large, and the power supply topology is the same. Each power Circuit is concentrated on the same Printed Circuit Board (PCB), which brings disadvantages of poor heat dissipation, inflexible test and maintenance, etc.
In the existing OLED power scheme, the power supply is mainly composed of two parts: power generation and power monitoring; the power supply generates a main generated voltage current for driving the OLED; the power supply monitors the main detection voltage and current to ensure the real-time stability of the power supply state; generally, each power generating board is provided with a power detecting board, all power generating circuits are printed on a larger PCB, and all power monitoring circuits are also printed on a larger PCB; different modules adopt different power control chips, different output indexes and different indexes of the monitoring module; the power output index is well set in the circuit and can not be changed; the existing scheme needs to pay attention to the layout and wiring of each path, which brings great labor consumption; and the board card is not flexible to debug and test.
Disclosure of Invention
The invention mainly aims to provide a driving power supply, a manufacturing method of the driving power supply and electronic equipment, and aims to solve the technical problems that in the prior art, when the driving power supply is used for adjusting the power supply output, the layout and the wiring of each path need to be paid attention to, the labor consumption is huge, and the board card debugging and testing are not flexible.
In a first aspect, the present invention further provides a driving power supply, which is characterized in that the driving power supply comprises a control board, and a plurality of power generation boards and a plurality of power detection boards corresponding to one another, wherein,
the control board is used for controlling the work of the power supply generation board and the power supply detection board so that the driving power supply meets the preset output;
the power generation board is used for generating voltage and current and driving a product to be tested;
the power supply detection board is used for detecting the voltage and the current generated by the power supply generation board so as to ensure the real-time stability of the power supply state;
the power generation boards and/or the power detection boards can be arranged on the control board in a pluggable mode.
Optionally, the power generation board comprises: a DCDC conversion chip, a voltage control circuit and an external interface, wherein,
the conversion pin of the DCDC conversion chip is electrically connected with the control panel through the external interface, the feedback pin of the DCDC conversion chip is electrically connected with the voltage control circuit, and the voltage control circuit is electrically connected with the external interface.
Optionally, the voltage control circuit comprises: a first resistor, a second resistor and a third resistor; wherein the content of the first and second substances,
the first end of the first resistor is grounded, the second end of the first resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the first resistor is further connected with the first end of the second resistor, the first end of the second resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the second resistor is connected with the external interface, the first end of the third resistor is connected with the feedback pin of the DCDC conversion chip, and the second end of the third resistor is connected with the external interface.
Optionally, the control board is further configured to control an output voltage of the power generation board through a voltage control circuit; wherein controlling the output voltage of the power generation board by a voltage control circuit comprises:
and controlling the output voltage of the power generation board according to the reference voltage of the DCDC conversion chip and the voltage output control signal of the voltage control circuit.
Optionally, the power supply detection board includes: the device comprises a current detection circuit, a voltage feedback circuit, a digital-to-analog converter and an external connector; wherein the content of the first and second substances,
the current detection circuit is electrically connected with the voltage feedback circuit, the voltage feedback circuit is electrically connected with the external connector, and the digital-to-analog converter is electrically connected with the external connector.
Optionally, the current detection circuit comprises: the rear-end current detection circuit is electrically connected with the overcurrent protection circuit, the overcurrent protection circuit is electrically connected with the external connector, the overcurrent protection circuit is also electrically connected with the voltage feedback circuit, and the rear-end current detection circuit is also electrically connected with the control panel;
the voltage feedback circuit is a comparator, the output end of the comparator is connected with the external connector, and the digital-to-analog converter outputs a voltage control signal to the external connector.
Optionally, the control board includes a central control unit and an analog-to-digital converter, the central control unit is electrically connected to the analog-to-digital converter, the analog-to-digital converter is electrically connected to the power supply detection board, and the central control unit is further electrically connected to the power supply detection board.
In a second aspect, the present invention further provides a manufacturing method of a driving power supply, where the manufacturing method of the driving power supply includes:
adding a compatible hardware interface for a power generation board and a power detection board to obtain the power generation board and the power detection board;
replacing the power generation board when a different voltage is required;
when different current and voltage monitoring is needed, the power supply detection board is replaced or added;
the power generation board and the power detection board are in butt joint with the control board through a control board interface to generate a driving power supply.
In a third aspect, the present invention also proposes an electronic device comprising a driving power supply as described above.
Optionally, the plurality of power generation boards comprises at least one positive voltage power generation board and at least one negative voltage power generation board.
According to the driving power supply provided by the invention, the driving power supply comprises the control panel, the plurality of power supply generating plates and the plurality of power supply detecting plates which correspond to one another one by one, and the compatibility of the product is improved through the modular design of interface compatibility, so that the debugging and the maintenance are facilitated, the flexibility of development is greatly improved, the expansibility of the product is enhanced, and the development difficulty is reduced; the modularized design can form a new product by updating the design of the product form instead of technology upgrading, thereby reducing the development difficulty; according to the power supply circuit, the area of the power supply board card is greatly reduced by optimizing the design of the power supply circuit, the size is reduced, the minimum scale of the layout and wiring is realized, the manpower consumption caused by the layout and wiring is reduced, and the development period is shortened.
Drawings
FIG. 1 is a schematic diagram of the driving power supply of the present invention;
FIG. 2 is a circuit diagram of the driving power supply of the present invention;
fig. 3 is a schematic flow chart of a manufacturing method of a driving power supply according to a first embodiment of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The solution of the embodiment of the invention is mainly as follows: the driving power supply comprises a control panel, wherein a power supply generating plate and a power supply detecting plate are inserted in the control panel; the power supply generation board is electrically connected with the control board through an external interface, and the power supply detection board is electrically connected with the control board through the external interface; the power generation board is used for generating voltage and current and driving the electronic equipment; the power supply detection board is used for detecting the voltage and the current of the power supply generation board; the modular design compatible with the interface can be realized, the compatibility of the product is improved, the debugging and the maintenance are facilitated, the development flexibility is greatly improved, the product expansibility is enhanced, the development difficulty is reduced, the area of a power board card is greatly simplified, the size is reduced, the minimum scale of layout and wiring is realized, the labor consumption caused by the layout and wiring is reduced, the development period is shortened, and the technical problems that the layout and wiring of each path is required to be paid attention when the power output of a driving power supply is adjusted in the prior art, the labor consumption is huge, and the board card debugging and the testing are inflexible are solved.
Fig. 1 is a schematic diagram of a driving power supply according to the present invention.
Referring to fig. 1, the driving power supply includes a control board 10, wherein,
a power generating board 11 and a power detecting board 12 are inserted into the control board 10;
the power generation board is electrically connected with the control board 10 through an external interface 11, and the power detection board 12 is electrically connected with the control board 10 through an external interface;
the power generation board 11 is used for generating voltage and current and driving a product to be tested;
the power supply detecting board 12 detects the voltage and current of the power supply generating board 11.
It should be noted that the control board is plugged with a power generation board and a power detection board, that is, the control board is integrated with the power generation board and the power detection board, the control board may be directly plugged with power generation boards and power detection boards of different parameters and different quantities according to actual application requirements, the power generation board is used for generating voltage and current to drive an electronic device, the power detection board is used for detecting the voltage and current of the power generation board, so as to ensure real-time stability of a power state, each power generation board is generally equipped with one power detection board, and certainly, multiple power supplies may correspond to one power supply monitoring, which is not limited in this embodiment.
It should be noted that, in the embodiments of the present application, a plurality of power generation boards and/or a plurality of power detection boards may be detachably disposed on the control board. In some implementations, the power supply generation boards and the power supply detection boards are all arranged on the control board in a pluggable manner, in other implementations, the power supply generation boards can also be arranged on the control board in a pluggable manner, the power supply detection boards are arranged in a one-to-one correspondence with the power supply generation boards, and the power supply detection boards are connected with the power supply generation boards in a pluggable manner. This is not a particular limitation of the present application.
The power generation board is a replaceable power generation board with a compatible design, the power detection board is a replaceable power detection board with a compatible design, and the power generation board and the power detection board are in butt joint with each other by virtue of an interface on the control board, so that the area of the power board is greatly reduced, the area of the whole board is reduced, the minimum scale of layout and wiring is realized, the labor consumption brought by layout and wiring is reduced, and the development period is shortened.
It should be understood that the power generation board may be replaced when a different voltage is required; when different current and voltage monitoring is needed, the power supply detection board can be replaced/added; for different circuit output indexes, the line order of the interface needs to be kept consistent, and different scheme configurations can be realized only by replacing module parameters; greatly increasing the flexibility of development and enhancing the expansibility of products.
In this embodiment, by the above scheme, the driving power supply includes a control board, wherein a power generating board and a power detecting board are inserted into the control board; the control board is used for replacing the power generation board when different voltages are needed; when different current and voltage monitoring is needed, the power supply detection board is replaced or added; the modular design compatible with the interface can improve the compatibility of the product, facilitate debugging and maintenance, greatly improve the flexibility of development, enhance the expansibility of the product, reduce the development difficulty, greatly simplify the area of the power board card, reduce the volume, realize the minimum scale of layout and wiring, reduce the labor consumption brought by the layout and wiring and shorten the development period.
Further, fig. 2 is a circuit structure diagram of the driving power supply of the present invention, and as shown in fig. 2, the power generating board includes: a DCDC conversion chip, a voltage control circuit 110, and an external interface, wherein,
the conversion pin SW of the DCDC conversion chip is electrically connected with the control panel through the external interface, the feedback pin FB of the DCDC conversion chip is electrically connected with the voltage control circuit, and the voltage control circuit is electrically connected with the external interface.
It should be noted that, since the driving power supplies need different voltages and currents, and the modular output indexes in the scheme have compatibility, the selected DCDC conversion chip needs to include the characteristics of the maximum voltage output capability and the maximum driving current capability required by all the power supplies, so as to meet all the power supply requirements required by the electronic device.
It can be understood that the power generation board is composed of a DCDC conversion chip, a voltage control circuit and an external interface, the conversion pin SW of the DCDC conversion chip is essentially a power output pin, and is connected to the monitoring circuit on the control board so as to detect the current value on the trunk.
Further, the voltage control circuit 110 includes: a first resistor R1, a second resistor R2 and a third resistor R3; wherein the content of the first and second substances,
a first end of the first resistor R1 is grounded, a second end of the first resistor R1 is connected to a feedback FB pin of the DCDC conversion chip, a second end of the first resistor R1 is further connected to a first end of the second resistor, a first end of the second resistor R2 is connected to the feedback FB pin of the DCDC conversion chip, a second end of the second resistor R2 is connected to the external interface, a first end of the third resistor R3 is connected to the feedback FB pin of the DCDC conversion chip, and a second end of the third resistor R3 is connected to the external interface;
the control board is also used for controlling the output voltage of the power generation board through a voltage control circuit; wherein controlling the output voltage of the power generation board by a voltage control circuit comprises:
and controlling the output voltage of the power generation board according to the reference voltage of the DCDC conversion chip and the voltage output control signal of the voltage control circuit.
Further, the output voltage of the power generation board is controlled according to the reference voltage of the DCDC conversion chip and the voltage output control signal of the voltage control circuit by the following formula:
wherein, VoFor generating an output voltage of the board, ViOutputting a control signal for said voltage, VfbFor the reference voltage, R1Is the first resistance, R2Is the second resistance, R3Is the third resistance.
It should be understood that the output voltage of the DCDC conversion chip, the second resistor R2, forms a closed loop circuit, thereby ensuring the accuracy of the voltage applied to the load.
In addition, V isoFor generating an output voltage of the board, ViOutputting a control signal for said voltage, VfbFor the reference voltage, a voltage output control signal ViIs connected through the third resistor R3 and is used for controlling the output voltage VoIs changed in magnitude, the output voltage VoAnd a voltage output control signal ViAre all led into the board card through a connector, VfbAnd the reference voltage for the DCDC conversion chip is provided by the DCDC conversion chip.
Further, the power supply detection board includes: a current detection circuit 120, a voltage feedback circuit 121, a digital-to-analog converter DAC, and an external connector; wherein the content of the first and second substances,
the current detection circuit 120 is electrically connected to the voltage feedback circuit 121, the voltage feedback circuit 121 is electrically connected to the external connector, and the digital-to-analog converter is electrically connected to the external connector.
It should be noted that the power supply detection board is composed of a current detection circuit 120, a voltage feedback circuit 121, a digital-to-analog converter DAC, and an external connector, and the current detection circuit 120 is mainly used for detecting a current value and a voltage value output by the power supply in real time.
Further, the current detection circuit 120 includes: the rear-end current detection circuit 1201 is electrically connected with the overcurrent protection circuit, the overcurrent protection circuit is electrically connected with the external connector, the overcurrent protection circuit is also electrically connected with the voltage feedback circuit, and the rear-end current detection circuit is also electrically connected with the control panel;
wherein, the overcurrent protection circuit includes: the current limiting circuit comprises a microampere sampling resistor RS1, a milliampere sampling resistor RS2, a load resistor RL, a first overcurrent protection switch S1 and a second overcurrent protection switch S2; wherein the content of the first and second substances,
a first end of the microampere sampling resistor RS1 is connected to the rear-end current detection circuit 1201, a first end of the microampere sampling resistor RS1 is further connected to a first end of the first overcurrent protection switch S1, and a second end of the first overcurrent protection switch S1 is connected to the external connector; the first end of the microampere-level sampling resistor RS1 is further connected to the first end of the second overcurrent protection switch S2, the second end of the microampere-level sampling resistor RS1 is connected to the first end of the milliamp-level sampling resistor RS2, the second end of the microampere-level sampling resistor RS1 is further connected to the second end of the second overcurrent protection switch S2, and the second end of the microampere-level sampling resistor RS1 is further connected to the rear-end current detection circuit 1201; the second end of the milliampere gear sampling resistor RS2 is connected to the first end of the load resistor RL, the second end of the milliampere gear sampling resistor RS2 is further connected to the rear-end current detection circuit 1201, the second end of the milliampere gear sampling resistor RS2 is further connected to the first input end of the voltage feedback circuit 121, the second end of the load resistor RL is grounded, and the second end of the load resistor RL is further connected to the second input end of the voltage feedback circuit 121.
It can be understood that the current detection circuit 120 includes a microampere sampling resistor RS1, a milliamp sampling resistor RS2, a load resistor RL, a first overcurrent protection switch S1, a second overcurrent protection switch S2, and a rear-end current detection circuit 1201, and in practical applications, the microampere sampling resistor RS1 and the milliamp sampling resistor RS2 are necessary components, and the load resistor RL may not be grounded directly by the second end of the milliamp sampling resistor RS2, and generally, OLED power detection signals are detected by microampere uA and milliamp mA gears, but some power supplies do not need microampere uA gear detection, and for compatibility design, a microampere uA gear is retained in the circuit, and for a circuit that does not need the microampere uA gear, a microampere uA gear circuit can be used in Surface Mounting Technology (SMT) attachment.
Further, the voltage feedback circuit 121 is a comparator INA, an output end of the comparator INA is connected to the external connector pair, and the digital-to-analog converter DAC outputs a voltage control signal to the external connector pair.
It should be understood that the voltage feedback circuit 121 mainly feeds back the output voltage to the power generating board 11 through the comparator INA to form a closed loop circuit, and the input end of the feedback signal is close to the load end, so as to compensate the line loss voltage of the power output.
Further, the control board 10 includes a central control unit and an analog-to-digital converter ADC, the central control unit is electrically connected to the analog-to-digital converter, the analog-to-digital converter is electrically connected to the power supply detection board, and the central control unit is also electrically connected to the power supply detection board.
It should be noted that the central control unit in the embodiment of the present application may be a microprocessor MCU, an FPGA, or an SOC chip, which is not limited in this application; namely, the central control unit is electrically connected with the analog-to-digital converter, the analog-to-digital converter is electrically connected with the output end of the comparator, and the central control unit is also electrically connected with the rear-end current detection circuit.
It will be appreciated that the voltage outputs a control signal ViComposed of the analog-to-digital converter ADC, and outputting a control signal V through the voltage by the output voltage formulaiCan be used for the output voltage VoFine adjustment is performed.
Accordingly, the present invention further provides an electronic device, where the electronic device includes the driving power supply as described above, and in this embodiment, the electronic device is any device including the driving power supply, that is, a common power supply device can be powered by the driving power supply in this embodiment.
Furthermore, the driving power supply comprises a module combination of a plurality of power supply generating boards and a plurality of power supply detecting boards, and the module combination is plugged on the same control board.
Optionally, the driving power supply of the present application is a modular OLED driving power supply, and includes a module combination of a pluggable 9-way power generation board and a pluggable 9-way power detection board.
In some implementations, the plurality of power generation boards includes at least one positive voltage power generation board and at least one negative voltage power generation board.
It should be noted that, generally, each power generation board is equipped with one power detection board, and in actual operation, the combination may be a combination of 9 power generation boards and 9 power detection boards, that is, each power generation board has one power detection board for monitoring, and certainly, the combination may also be other more or fewer modules, which is specifically adjusted according to actual application conditions, and this embodiment is not limited to this; of course, the present embodiment may also be a combination manner in which multiple power supply boards correspond to one power supply monitoring board, which is not limited in this embodiment.
In this embodiment, by the above scheme, the driving power supply includes a control board, wherein a power generating board and a power detecting board are inserted into the control board; the power supply generation board is electrically connected with the control board through an external interface, and the power supply detection board is electrically connected with the control board through the external interface; the power generation board is used for generating voltage and current and driving the electronic equipment; the power supply detection board is used for detecting the voltage and the current of the power supply generation board; the modular design compatible with the interface can improve the compatibility of the product, facilitate debugging and maintenance, greatly improve the flexibility of development, enhance the expansibility of the product, reduce the development difficulty, greatly simplify the area of the power board card, reduce the volume, realize the minimum scale of layout and wiring, reduce the labor consumption brought by the layout and wiring and shorten the development period.
Correspondingly, the invention provides a manufacturing method of the driving power supply.
Fig. 3 is a schematic flowchart of a manufacturing method of a driving power supply according to a first embodiment of the present invention, and as shown in fig. 3, the manufacturing method of the driving power supply includes:
and step S10, adding compatible hardware interfaces for the power generation board and the power detection board to obtain the power generation board and the power detection board.
It should be noted that, the power generation board and the power detection board are respectively added with a compatible hardware interface, so that the power generation board and the power detection board can be obtained, and both the power generation board and the power detection board retain a compatible design in performance, and the layout keeps the consistency of all power generation circuits and power monitoring circuits.
And step S20, when different voltages are needed, replacing the power generation board.
It will be appreciated that the power generating plate may be replaced when a different voltage is required, for example when a large voltage is required.
And step S30, replacing or adding the power supply detection board when different current and voltage monitoring is needed.
It should be understood that the power supply detection board may be replaced/added when different current and voltage monitoring is required; for example, when microampere gear monitoring is needed, the power supply detection board can be replaced or added; the interface compatibility design has expansibility, and the debugging and maintenance operation are more convenient.
It should be noted that, for different circuit output indexes, the line order of the interface needs to be kept consistent, and different scheme configurations can be realized only by replacing module parameters; greatly increasing the flexibility of development and enhancing the expansibility of products.
And step S40, the power generation board and the power detection board are in butt joint with the control board through the control board interface to generate a driving power supply.
It can be understood that the power generation board and the power detection board are in butt joint with the control board through the control board interface, namely, the board card modules are in butt joint with the control board interface on the control board generally, so that the area of the power board card is greatly reduced, the whole board card area is reduced, the minimum of the scale of layout and wiring is realized, the manpower consumption caused by the layout and wiring is reduced, the development period is shortened, and the product has the characteristics of strong universality, strong environmental adaptability and the like through the modularized circuit design.
Further, the power generation board includes: the device comprises a DCDC conversion chip, a voltage control circuit and an external interface; the DCDC conversion chip is electrically connected with the control panel through the external interface, the DCDC conversion chip is electrically connected with the voltage control circuit, and the voltage control circuit is electrically connected with the external interface;
controlling an output voltage of the power generation board by the voltage control circuit.
It should be noted that, since the driving power supplies need different voltages and currents, and the modular output indexes in the scheme have compatibility, the selected DCDC conversion chip needs to include the characteristics of the maximum voltage output capability and the maximum driving current capability required by all the power supplies, so as to meet all the power supply requirements required by the OLED.
It can be understood that the power generation board is composed of a DCDC conversion chip, a voltage control circuit and an external interface, the conversion pin SW of the DCDC conversion chip is essentially a power output pin, and is connected to the monitoring circuit on the control board so as to detect the current value on the trunk.
Further, said controlling, by said voltage control circuit, an output voltage of said power generating board comprises:
acquiring a voltage output control signal of the voltage control circuit and a reference voltage of the DCDC conversion chip;
controlling an output voltage of the power generation board according to the reference voltage and the voltage output control signal.
It should be understood that the output voltage of the DCDC conversion chip, the second resistor R2, forms a closed loop circuit, thereby ensuring the accuracy of the voltage applied to the load.
It should be noted that the voltage output control signal is used to control the change of the output voltage, both the output voltage and the voltage output control signal are introduced onto the board card through the connector, and the reference voltage is the reference voltage of the DCDC conversion chip and is provided by the DCDC conversion chip.
According to the scheme, the power generation board and the power detection board are obtained by adding the compatible hardware interface for the power generation board and the power detection board; replacing the power generation board when a different voltage is required; when different current and voltage monitoring is needed, the power supply detection board is replaced or added; the power generation board and the power detection board are in butt joint with the control board through a control board interface to generate a driving power supply; the compatibility of the product can be improved through the modular design of interface compatibility, so that the debugging and the maintenance are facilitated, the flexibility of development is greatly improved, the expansibility of the product is enhanced, and the development difficulty is reduced; the modularized design can form a new product by updating the design of the product form instead of technology upgrading, thereby reducing the development difficulty; by optimizing the design of the power circuit, the power board card is greatly reduced in area, the size is reduced, the minimum scale of layout and wiring is realized, the labor consumption caused by layout and wiring is reduced, and the development period is shortened; the installation of the module depends on the interface of the control panel, and the size of the module is reduced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A driving power supply is characterized in that the driving power supply comprises a control board, a plurality of power generation boards and a plurality of power detection boards which are in one-to-one correspondence, wherein,
the control board is used for controlling the work of the power supply generation board and the power supply detection board so that the driving power supply meets the preset output;
the power generation board is used for generating voltage and current and driving a product to be tested;
the power supply detection board is used for detecting the voltage and the current generated by the power supply generation board so as to ensure the real-time stability of the power supply state;
the plurality of power generation boards and/or the plurality of power detection boards can be arranged on the control board in a pluggable manner;
wherein the power generation board comprises: a DCDC conversion chip, a voltage control circuit and an external interface, wherein,
a conversion pin of the DCDC conversion chip is electrically connected with the control panel through the external interface, a feedback pin of the DCDC conversion chip is electrically connected with the voltage control circuit, and the voltage control circuit is electrically connected with the external interface;
wherein the voltage control circuit comprises: a first resistor, a second resistor and a third resistor; wherein the content of the first and second substances,
the first end of the first resistor is grounded, the second end of the first resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the first resistor is further connected with the first end of the second resistor, the first end of the second resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the second resistor is connected with the external interface, the first end of the third resistor is connected with the feedback pin of the DCDC conversion chip, and the second end of the third resistor is connected with the external interface.
2. The driving power supply according to claim 1, wherein the control board is further configured to control an output voltage of the power generating board through a voltage control circuit; wherein controlling the output voltage of the power generation board by a voltage control circuit comprises:
and controlling the output voltage of the power generation board according to the reference voltage of the DCDC conversion chip and the voltage output control signal of the voltage control circuit.
3. The driving power supply according to claim 1, wherein the power supply detection board includes: the device comprises a current detection circuit, a voltage feedback circuit, a digital-to-analog converter and an external connector; wherein the content of the first and second substances,
the current detection circuit is electrically connected with the voltage feedback circuit, the voltage feedback circuit is electrically connected with the external connector, and the digital-to-analog converter is electrically connected with the external connector.
4. The drive power supply according to claim 3, wherein the current detection circuit includes: the rear-end current detection circuit is electrically connected with the overcurrent protection circuit, the overcurrent protection circuit is electrically connected with the external connector, the overcurrent protection circuit is also electrically connected with the voltage feedback circuit, and the rear-end current detection circuit is also electrically connected with the control panel;
correspondingly, the voltage feedback circuit is a comparator, the output end of the comparator is connected with the external connector, and the digital-to-analog converter outputs a voltage control signal to the external connector.
5. The driving power supply according to any one of claims 1 to 4, wherein the control board includes a central control unit and an analog-to-digital converter, the central control unit is electrically connected to the analog-to-digital converter, the analog-to-digital converter is electrically connected to the power supply detection board, and the central control unit is also electrically connected to the power supply detection board.
6. A manufacturing method of a driving power supply is characterized by comprising the following steps:
adding a compatible hardware interface for a power generation board and a power detection board to obtain the power generation board and the power detection board;
replacing the power generation board when a different voltage is required;
when different current and voltage monitoring is needed, the power supply detection board is replaced or added;
the power generation board and the power detection board are in butt joint with the control board through a control board interface to generate a driving power supply;
wherein the driving power supply comprises a control board, a plurality of power generation boards and a plurality of power detection boards which are in one-to-one correspondence,
the control board is used for controlling the work of the power supply generation board and the power supply detection board so that the driving power supply meets the preset output;
the power generation board is used for generating voltage and current and driving a product to be tested;
the power supply detection board is used for detecting the voltage and the current generated by the power supply generation board so as to ensure the real-time stability of the power supply state;
the plurality of power generation boards and/or the plurality of power detection boards can be arranged on the control board in a pluggable manner;
wherein the power generation board comprises: a DCDC conversion chip, a voltage control circuit and an external interface, wherein,
a conversion pin of the DCDC conversion chip is electrically connected with the control panel through the external interface, a feedback pin of the DCDC conversion chip is electrically connected with the voltage control circuit, and the voltage control circuit is electrically connected with the external interface;
wherein the voltage control circuit comprises: a first resistor, a second resistor and a third resistor; wherein the content of the first and second substances,
the first end of the first resistor is grounded, the second end of the first resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the first resistor is further connected with the first end of the second resistor, the first end of the second resistor is connected with the feedback pin of the DCDC conversion chip, the second end of the second resistor is connected with the external interface, the first end of the third resistor is connected with the feedback pin of the DCDC conversion chip, and the second end of the third resistor is connected with the external interface.
7. An electronic device characterized in that the electronic device comprises the driving power supply according to any one of claims 1 to 5.
8. The electronic device of claim 7, wherein the plurality of power generation boards comprises at least one positive voltage power generation board and at least one negative voltage power generation board.
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| CN202010761582.0A CN111901917B (en) | 2020-07-31 | 2020-07-31 | Driving power supply, manufacturing method of driving power supply and electronic equipment |
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| CN202010761582.0A CN111901917B (en) | 2020-07-31 | 2020-07-31 | Driving power supply, manufacturing method of driving power supply and electronic equipment |
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| US6841983B2 (en) * | 2002-11-14 | 2005-01-11 | Fyre Storm, Inc. | Digital signal to pulse converter and method of digital signal to pulse conversion |
| CN102360242A (en) * | 2011-10-10 | 2012-02-22 | 浪潮电子信息产业股份有限公司 | Method for realizing modularized power supply of mainboard |
| CN106712142B (en) * | 2015-11-12 | 2021-07-16 | 中兴通讯股份有限公司 | Intelligent power supply and method for realizing intelligent power supply |
| CN108710593B (en) * | 2018-05-24 | 2021-10-15 | 环旭电子股份有限公司 | Power supply method and device based on Type-C connector |
| CN110034548A (en) * | 2019-04-15 | 2019-07-19 | Oppo广东移动通信有限公司 | A kind of power-supply device and test macro |
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