CN107015494B - Multi-path voltage source circuit - Google Patents
Multi-path voltage source circuit Download PDFInfo
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- CN107015494B CN107015494B CN201610057029.2A CN201610057029A CN107015494B CN 107015494 B CN107015494 B CN 107015494B CN 201610057029 A CN201610057029 A CN 201610057029A CN 107015494 B CN107015494 B CN 107015494B
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- voltage
- voltage source
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- selection switch
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/23—Pc programming
- G05B2219/23358—Program card with integrated control panel, flexible circuit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electroluminescent Light Sources (AREA)
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Abstract
The invention relates to the technical field of integrated circuit manufacturing, in particular to a multi-path voltage source circuit which is applied to matching a main board and a panel of terminal equipment in an AMOLED (active matrix/organic light emitting diode) regulating circuit, wherein a multi-path selection switch is arranged between a multi-path voltage source and a voltage input end, and flexible connection and disconnection between any voltage source and the matched voltage input end can be realized by toggling the switch, so that continuous disassembly and welding connection resistance required by selecting different voltage sources in the traditional PCB design are effectively avoided, a resistance pad and a PCB (printed circuit board) are effectively prevented from being damaged, the waste and electronic waste are reduced, the process cost is greatly reduced, and the environment is protected.
Description
Technical Field
The invention relates to the technical field of integrated circuit manufacturing, in particular to a multi-path voltage source circuit which is applied to matching a main board and a panel of terminal equipment in an AMOLED (active matrix/organic light emitting diode) adjusting circuit.
Background
At present, when a voltage selection circuit is designed on a PCB, a resistor is usually reserved between two groups of voltage sources and voltage input terminals, so that a zero ohm resistor is connected between a voltage source and a corresponding voltage input terminal when a certain voltage source is used, but when another voltage source is needed in the future, the connected zero ohm resistor needs to be removed before a new zero ohm resistor is connected between the voltage source selected in the future and the corresponding voltage input terminal. The reason for replacing the zero ohm resistor is mainly that the characteristic that the resistance value of the zero ohm resistor is small is utilized, the impedance can be close to a wire after the zero ohm resistor is connected, the voltage is normally transmitted, an open circuit can be realized after the zero ohm resistor is disconnected, and the voltage cannot be transmitted. However, after the resistors are disassembled and soldered many times, the pads of the resistors are damaged to some extent, and even the whole circuit board is damaged, which is not desired by the person skilled in the art.
Disclosure of Invention
In view of the above existing problems, the present invention discloses a multi-path voltage source circuit, which is applied to matching a motherboard and a panel of a terminal device in an AMOLED adjusting circuit, and the circuit includes:
at least two power input terminals disposed on the panel;
at least two power supplies, wherein a power supply input end is correspondingly arranged near each power supply; and
the power supply selection switch is arranged between the at least two paths of power supplies and the at least two power supply input ends; wherein
And selecting one of the at least two power supplies to supply power to the panel through the power supply input end corresponding to the power supply by using the power supply selection switch.
In the above multi-path voltage source circuit, the power selection switch is a multi-path selection switch.
In the above multi-path voltage source circuit, the at least two power sources are both voltage sources, and the at least two power input terminals are both voltage input terminals.
In the above multi-path voltage source circuit, the at least two power sources include a first voltage source and a second voltage source, the first voltage source is a voltage source of the signal source, and the second voltage source is an independent voltage source.
In the above multi-path voltage source circuit, the at least two power input terminals include a first voltage input terminal and a second voltage input terminal.
The multi-voltage source circuit comprises an AMOLED adjusting circuit and an AMOLED adjusting module.
The multi-voltage source circuit comprises the AMOLED adjusting module, wherein the AMOLED adjusting module comprises:
the voltage conversion circuit is used for converting the voltage output by the mainboard into a voltage source of the signal source and transmitting the voltage source to the first voltage input end through the power selection switch;
the independent voltage generating circuit generates the independent voltage source and can transmit the independent voltage source to the second voltage input end through the power supply selection switch;
and the voltage output circuit is connected with the first voltage input end and the second voltage input end so as to supply power to the panel by utilizing one of the independent voltage source and the voltage source of the signal source.
The aforementioned multi-voltage source circuit, wherein the AMOLED adjusting module further includes:
and the signal output circuit outputs the signal sent by the mainboard to the panel.
The above multi-path voltage source circuit, wherein the signal is a mipi signal.
In the above multi-path voltage source circuit, the terminal device is a mobile phone or a tablet computer.
The invention has the following advantages or beneficial effects:
the invention discloses a multi-path voltage source circuit which is applied to matching a main board and a panel of terminal equipment in an AMOLED (active matrix/organic light emitting diode) regulating circuit, wherein a multi-path selection switch is arranged between a multi-path voltage source and a voltage input end, so that flexible connection and disconnection between any voltage source and the matched voltage input end can be realized by toggling the switch, further, the situation that different voltage sources are selected during the traditional PCB design and connection resistors are required to be continuously disassembled and welded is effectively avoided, a resistor pad and a PCB (printed circuit board) are effectively prevented from being damaged, the waste and electronic waste are reduced, the process cost can be greatly reduced, and the environment is protected.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic interface diagram of an interposer in an embodiment of the invention;
FIG. 2 is a schematic diagram of an independent voltage conversion circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an AMOLED adjusting circuit according to an embodiment of the present invention.
Detailed Description
The invention discloses a multi-path voltage source circuit, which is applied to matching a main board and a panel of terminal equipment in an AMOLED (active matrix/organic light emitting diode) regulating circuit, and comprises at least two power supply input ends arranged on the panel, at least two power supplies which are provided with a power supply input end correspondingly adjacent to each power supply, and a power supply selection switch arranged between the at least two power supplies and the at least two power supply input ends; the panel is powered by one of the at least two power supplies through the power input end corresponding to the power supply by using the power selection switch.
In a preferred embodiment of the present invention, the power selection switch is a multi-way selection switch.
In a preferred embodiment of the present invention, the at least two power supplies are both voltage sources, and at least two power input terminals are both voltage input terminals.
In a preferred embodiment of the present invention, the at least two power sources include a first voltage source and a second voltage source, and the first voltage source is a voltage source of the signal source, and the second voltage source is an independent voltage source.
In a preferred embodiment of the present invention, the at least two power input terminals include a first voltage input terminal and a second voltage input terminal.
In a preferred embodiment of the present invention, the AMOLED adjusting circuit includes an AMOLED adjusting module.
In a preferred embodiment of the present invention, the AMOLED adjusting module includes: the panel comprises a voltage conversion circuit which converts the voltage output by the mainboard into the voltage source of the signal source and can be transmitted to the first voltage input end through the power selection switch, an independent voltage generation circuit which generates the independent voltage source and can be transmitted to the second voltage input end through the power selection switch, and a voltage output circuit which is connected with the first voltage input end and the second voltage input end so as to utilize one of the independent voltage source and the voltage source of the signal source to supply power to the panel.
On the basis, the AMOLED adjusting module further comprises a signal output circuit which outputs signals sent by the main board to the panel.
On the basis, the signal is a mipi signal.
In a preferred embodiment of the present invention, the terminal device is a mobile phone or a tablet computer.
The invention will be further elucidated in the following by means of specific embodiments in conjunction with the drawing:
as shown in fig. 1, in which fig. 1a is a circuit board CN1 of the interposer, CN1 is a signal source containing voltage, fig. 1b is a circuit board CN2 of the interposer, CN2 is an input terminal, ELVSS, ELVDD and VSP are required input voltages, three voltages all require two sets of voltage sources, one is received from CN1 (i.e., the voltage of the signal source), and the other is output and supplied by the independent voltage generating circuit (power IC) in fig. 2 (i.e., independent voltage).
Conventionally, R1, R2, R3, R4, R5 and R6 resistor positions are reserved at ELVSS, ELVDD and VSP terminals, the voltage of a signal source is needed, zero ohm resistors are connected at R1, R3 and R5 positions, the voltage output by a power IC is needed, zero ohm resistors are connected at R2, R4 and R6 positions, so that which group of voltage needs to be used needs to be connected with which group of resistors, the resistors of the other group need to be disassembled, so that more disassembling and welding are needed, the resistor pads on the PCB are damaged, and the whole PCB is damaged.
As shown in fig. 1b, the method of this embodiment is to change the resistance position of the original R1, R2 to the two-way selection switch SW1, the resistance position of the original R3, R4 to the two-way selection switch SW2, the resistance position of the original R5, R6 to the two-way selection switch SW3, so that the voltage of the signal source is needed, only 1 to 4 terminals of SW1, SW2, and SW3 are turned ON, and 2 to 3 terminals are turned OFF, and similarly, the output voltage of the power IC is needed, only 1 to 4 terminals of SW1, SW2, and SW3 are turned OFF, and 2 to 3 terminals are turned ON, so that the needed voltage is sent to the PCB without re-disassembling and welding, thereby effectively avoiding the need of continuous disassembling and welding connection resistors for different voltage sources during the conventional PCB design, effectively avoiding the damage of the resistors and the PCB board, reducing the waste of the pads and the electronic waste, and greatly reducing the process cost, and protects the environment.
As shown in fig. 3, the AMOLED adjusting circuit of the mobile phone of the present invention is applied to the AMOLED adjusting circuit of the mobile phone, and is used for analyzing the voltage and the signal between the AMOLED panel and the mobile phone motherboard, so as to better match the AMOLED panel and the mobile phone motherboard, and achieve better screen display effect
The AMOLED screen adjusting module is a module in the whole adjusting circuit, the module is matched, a mobile phone mainboard generates voltage and MIPI signals required by a subsequent AMOLED panel, the middle of the voltage and MIPI signals are converted by a voltage conversion circuit and then are sent to the AMOLED panel, in general, the display of the AMOLED panel has some abnormal phenomena, and mainly because the matching of the input voltage and the MIPI signals with the AMOLED panel has problems, the voltage and the signals generated by a receiving conversion part (a panel and a driver IC (driving chip)) of the AMOLED panel and the mobile phone mainboard need to be adjusted.
In the embodiment of the invention, the receiving and converting part of the AMOLED panel is already adjusted, the MIPI signal generated by the mobile phone mainboard is also already adjusted, and only the sent voltage needs to be adjusted. Therefore, the voltage output circuit needs two voltage sources, one is the voltage source of the signal source transmitted by the mobile phone motherboard, the other is the independent voltage source generated by the independent voltage generating circuit (or more than two voltage sources, if more than two independent voltage generating circuits are needed, more than two voltage sources are needed, in the embodiment, two voltage sources are used), because only one voltage can be transmitted at a time, the voltage input ends (the first voltage input end and the second voltage input end) need to be added with a power selection switch (a multi-way selection switch, here, a two-way selection switch can be used), the independent voltage source sent by the independent voltage generating circuit is selected first, each group of voltage is adjusted step by step, and finally the voltage source of the signal source transmitted by the mobile phone motherboard is selected after the voltage input ends are adjusted to an ideal state (the ideal state can be understood as normal and stable display of the AMOLED screen, and the, each group of voltage sources are adjusted to be the same as the independent voltage source part, so that the main board and the panel of the mobile phone can be well matched, and the mobile phone can stably work.
In summary, the invention discloses a multi-path voltage source circuit, which is applied to matching a main board and a panel of a terminal device in an AMOLED (active matrix/organic light emitting diode) regulating circuit, and can realize flexible connection and disconnection between any voltage source and a matched voltage input end thereof by arranging a multi-path selection switch between the multi-path voltage source and the voltage input end through a toggle switch, thereby effectively avoiding the situation that different voltage sources are selected and connected with resistors through continuous disassembly and welding in the traditional PCB design, effectively avoiding the damage of a resistor pad and a PCB (printed circuit board), greatly reducing the process cost while reducing waste and electronic waste, and protecting the environment.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, without affecting the spirit of the invention, using the methods and techniques disclosed above, without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (10)
1. A multi-path voltage source circuit is characterized in that a main board and a panel of a terminal device applied to an AMOLED (active matrix/organic light emitting diode) adjusting line are matched, and the multi-path voltage source circuit comprises:
at least two power input terminals disposed on the panel;
the power supply comprises at least two paths of power supplies, wherein each path of power supply is correspondingly provided with a voltage signal input end and an independent power supply input end; and
a pair of first resistance weld locations disposed between each of said voltage signal input terminals and a corresponding one of said power sources;
a pair of second resistance welding locations disposed between each of said independent power supply input terminals and a corresponding one of said power supplies;
a first power selection switch connected to the pair of first resistance welding positions;
a second power selection switch connected to the pair of second resistance welding positions; wherein
Selecting one of the at least two power supplies to supply power to the panel through a power supply input end corresponding to the power supply by using the first power supply selection switch and the second power supply selection switch;
the first power selection switch and the second power selection switch are toggle switches.
2. The multi-channel voltage source circuit of claim 1, wherein the first power selection switch and the second power selection switch are multi-channel selection switches.
3. The multi-channel voltage source circuit of claim 1, wherein the at least two power sources are both voltage sources and the at least two power input terminals are both voltage input terminals.
4. The multi-channel voltage source circuit of claim 3, wherein the at least two power sources comprise a first voltage source and a second voltage source, and the first voltage source is a voltage source of the signal source and the second voltage source is an independent voltage source.
5. The multi-way voltage source circuit of claim 4, wherein the at least two power supply inputs comprise a first voltage input and a second voltage input.
6. The multi-voltage source circuit of claim 5, wherein the AMOLED regulation circuitry comprises an AMOLED regulation module.
7. The multi-way voltage source circuit of claim 6,
the AMOLED adjustment module includes:
the voltage conversion circuit is used for converting the voltage output by the mainboard into a voltage source of the signal source and transmitting the voltage to the first voltage input end through the first power selection switch and the second power selection switch;
the independent voltage generating circuit generates the independent voltage source and can transmit the independent voltage source to the second voltage input end through the first power supply selection switch and the second power supply selection switch;
and the voltage output circuit is connected with the first voltage input end and the second voltage input end so as to supply power to the panel by utilizing one of the independent voltage source and the voltage source of the signal source.
8. The multi-voltage source circuit of claim 7, wherein the AMOLED conditioning module further comprises:
and the signal output circuit outputs the signal sent by the mainboard to the panel.
9. A multi-way voltage source circuit as claimed in claim 8 wherein the signal is a mipi signal.
10. The multi-channel voltage source circuit of claim 1, wherein the terminal device is a cell phone or a tablet computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057029.2A CN107015494B (en) | 2016-01-27 | 2016-01-27 | Multi-path voltage source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057029.2A CN107015494B (en) | 2016-01-27 | 2016-01-27 | Multi-path voltage source circuit |
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| CN107015494A CN107015494A (en) | 2017-08-04 |
| CN107015494B true CN107015494B (en) | 2020-10-16 |
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| CN201610057029.2A Active CN107015494B (en) | 2016-01-27 | 2016-01-27 | Multi-path voltage source circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754748B (en) * | 2017-11-03 | 2021-05-14 | 上海和辉光电股份有限公司 | Display panel's drive circuit, display panel and display device |
| CN109949742B (en) * | 2017-12-20 | 2021-04-27 | 上海和辉光电股份有限公司 | Display panel's drive circuit and display panel |
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| CN107015494A (en) | 2017-08-04 |
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Address after: 201506 room 208, 2nd floor, building 1, 100 Jinshan Industrial Park Avenue, Jinshan District, Shanghai Patentee after: Shanghai Hehui optoelectronic Co., Ltd Address before: 201506 room 208, 2nd floor, building 1, 100 Jinshan Industrial Park Avenue, Jinshan District, Shanghai Patentee before: EverDisplay Optronics (Shanghai) Ltd. |
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