CN217061413U - Low-power-consumption liquid crystal module driving circuit compatible with multi-specification voltage system - Google Patents
Low-power-consumption liquid crystal module driving circuit compatible with multi-specification voltage system Download PDFInfo
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- CN217061413U CN217061413U CN202220636802.1U CN202220636802U CN217061413U CN 217061413 U CN217061413 U CN 217061413U CN 202220636802 U CN202220636802 U CN 202220636802U CN 217061413 U CN217061413 U CN 217061413U
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Abstract
The utility model discloses a compatible many specification voltage system's low-power consumption liquid crystal module drive circuit include the data current suppression circuit that links to each other with the external data input, with the data receiving circuit that the data current suppression circuit links to each other, the voltage compatible circuit that links to each other with the external voltage input, respectively with the data receiving circuit with the level conversion circuit that the voltage compatible circuit links to each other, with the integrated package that the level conversion circuit links to each other, be provided with liquid crystal module display module on the integrated package. The liquid crystal module can be normally used under various voltage systems; meanwhile, the software can be optimized correspondingly according to different application scenes, the overall power consumption of the liquid crystal module is reduced, and the universality and the application range of the liquid crystal display module are greatly improved. The customer can realize the direct switching of different voltage systems on the premise of not changing hardware, shorten the development period of a new project and meet the requirement of low power consumption.
Description
Technical Field
The utility model relates to a drive circuit especially relates to a compatible many specification voltage system's low-power consumption liquid crystal module drive circuit.
Background
The handheld equipment is widely applied to the fields of medical instruments, sports equipment and the like, and the extension of the service life of the battery is always the direction of efforts of various manufacturers. The liquid crystal module plays a role of man-machine communication and is an essential part in the handheld device. The traditional liquid crystal module cannot give consideration to various voltage specifications, needs to specially process data of different voltage systems, and is poor in compatibility; meanwhile, due to the technical barriers of the liquid crystal industry and external hardware, the phenomenon of high power consumption of the liquid crystal module always exists. The two points restrict the universality of the liquid crystal module and the wide application of the low-power-consumption market.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a compatible many specification voltage system's low-power consumption liquid crystal module drive circuit is provided, can realize different voltage system's direct switching under the prerequisite that does not change hardware, shorten the development cycle of new project, compromise the demand of low-power consumption simultaneously.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a compatible many specifications voltage system's low-power consumption liquid crystal module drive circuit which innovation point lies in: the low-power-consumption liquid crystal module driving circuit compatible with the multi-specification voltage system comprises a data current suppression circuit connected with an external data input end, a data receiving circuit connected with the data current suppression circuit, a voltage compatible circuit connected with an external voltage input end, a level conversion circuit respectively connected with the data receiving circuit and the voltage compatible circuit, and an integrated block connected with the level conversion circuit, wherein a liquid crystal module display module is arranged on the integrated block.
Preferably, the voltage-compatible circuit includes a capacitor C connected in parallel between a high potential and a low potential at the external voltage input terminal 1 And a capacitor C 2 And a capacitor C connected in parallel 1 And a capacitor C 2 Resistors R connected in series 1 A low voltage difference voltage stabilizing chip connected in parallel with the low voltageAnd the output end of the filtering unit is connected with the level conversion circuit.
Preferably, the low dropout voltage regulator chip is an LD0MD5318 chip, and the filter unit is a capacitor C arranged in parallel 3 And a capacitor C 4 。
Preferably, the external data input end includes a first input end, a second input end, a third input end, a fourth input end and a fifth input end, the first input end, the second input end, the third input end, the fourth input end and the fifth input end are respectively connected to a first transmission line, a second transmission line, a third transmission line, a fourth transmission line and a fifth transmission line, and the data current suppression circuit, the data receiving circuit and the level conversion circuit are respectively connected to the corresponding first transmission line, the second transmission line, the third transmission line, the fourth transmission line and the fifth transmission line; the integrated block is respectively connected with the second transmission line, the third transmission line, the fourth transmission line and the fifth transmission line; the output end of the voltage compatible circuit is a high potential input end of the level conversion circuit.
Preferably, the data current suppressing circuit includes a varistor RS connected in parallel between the first transmission line and the second transmission line 1 A rheostat RS connected in parallel between the first transmission line and the third transmission line 4 A rheostat RS connected in parallel between the first transmission line and the fourth transmission line 7 A rheostat RS connected in parallel between the first transmission line and the fifth transmission line 10 。
Preferably, the data receiving circuit includes a transistor Q connected in series to the second transmission line 1 And a transistor Q arranged in the transistor 1 And a varistor RS between the first transmission lines 2 And a triode Q connected in series on the third transmission line 2 And is arranged on the triode Q 2 And a varistor RS between the first transmission lines 5 And a triode Q connected in series on the fourth transmission line 3 And is arranged on the triode Q 3 And a varistor RS between the first transmission lines 8 A triode Q connected in series with the fifth transmission line 4 And is arranged on the triode Q 4 And a varistor RS between the first transmission lines 11 。
Preferably, the level shift circuit includes a varistor RS disposed between the output terminal of the voltage-compatible circuit and the second transmission line 3 A varistor RS arranged between the output of the voltage-compatible circuit and the third transmission line 6 A rheostat RS arranged between the output end of the voltage compatible circuit and the fourth transmission line 9 A varistor RS arranged between the output of the voltage-compatible circuit and the fifth transmission line 12 。
Preferably, the integrated package is a chip U1PIC16LF19156, and the integrated package is provided with display pins connected with the liquid crystal module display module.
Preferably, the integrated block is internally provided with a voltage doubling mode, a sleep interruption module is embedded in the integrated block, and the sleep interruption module is connected with the liquid crystal module display module.
Preferably, the integrated package is provided with a download pin connected to an external download module, and the download module is a J3 chip.
The utility model has the advantages that: by adopting the structure, the liquid crystal module can be normally used under various voltage systems; meanwhile, the software can be optimized correspondingly according to different application scenes, the overall power consumption of the liquid crystal module is reduced, and the universality and the application range of the liquid crystal display module are greatly improved. The customer can realize the direct switching of different voltage systems on the premise of not changing hardware, shorten the development cycle of a new project, and simultaneously consider the requirement of low power consumption.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a block diagram illustrating the flow of the low power consumption lcd module driving circuit compatible with multiple voltage systems.
Fig. 2 is a schematic circuit diagram of a low power consumption liquid crystal module driving circuit compatible with multiple voltage systems.
Fig. 3 is a schematic diagram of a liquid crystal display module in a low power consumption liquid crystal module driving circuit compatible with multiple voltage systems.
Fig. 4 is a schematic diagram of the structure of the download module in the low power consumption liquid crystal module driving circuit compatible with multiple voltage systems.
In the figure: 1-data current suppression circuit, 11-rheostat RS 1 12-rheostat RS 4 13-rheostat RS 7 14-rheostat RS 10 2-data receiving circuit, 21-triode Q 1 22-rheostat RS 2 23-triode Q 2 24-rheostat RS 5 25-triode Q 3 26-rheostat RS 8 27-triode Q 4 28-rheostat RS 11 3-voltage compatible circuit, 31-capacitor C 1 32-capacitance C 2 33-resistance R 1 34-low dropout voltage stabilizing chip and 35-capacitor C 3 36-capacitance C 4 4-level conversion circuit, 41-rheostat RS 3 42-rheostat RS 6 43-rheostat RS 9 44-rheostat RS 12 The display module comprises a 5-integrated block, a 6-liquid crystal module display module, 711-a first input end, 712-a second input end, 713-a third input end, 714-a fourth input end, 715-a fifth input end, 721-a first transmission line, 722-a second transmission line, 723-a third transmission line, 724-a fourth transmission line, 725-a fifth transmission line and 8-a download module.
Detailed Description
The utility model discloses a compatible many specification voltage system's low-power consumption liquid crystal module drive circuit includes the data current suppression circuit 1 that links to each other with the external data input end, the data receiving circuit 2 that links to each other with the data current suppression circuit, the voltage compatible circuit 3 that links to each other with the external voltage input end, the level shift circuit 4 that links to each other with data receiving circuit and voltage compatible circuit respectively, the integrated package 5 that links to each other with the level shift circuit, be provided with liquid crystal module display module 6 on the integrated package. By adopting the structure, the liquid crystal module can be normally used under various voltage systems; meanwhile, the software can be optimized correspondingly according to different application scenes, the overall power consumption of the liquid crystal module is reduced, and the universality and the application range of the liquid crystal display module are greatly improved. The customer can realize the direct switching of different voltage systems on the premise of not changing hardware, shorten the development period of a new project and meet the requirement of low power consumption.
The voltage-compatible circuit 3 includes a capacitor C connected in parallel between a high potential and a low potential at the external voltage input terminal 1 31 and a capacitor C 2 32. With the capacitor C connected in parallel 1 And a capacitor C 2 Series connected resistor R 1 33 and a low dropout voltage stabilizing chip 34, and a filtering unit connected in parallel to the low dropout voltage stabilizing chip, wherein the output end of the filtering unit is connected with the level conversion circuit. The low dropout voltage regulator chip is an LDO MD5318 chip, and the filter unit is a capacitor C arranged in parallel 3 35 and a capacitor C 4 36。
The external data input terminals include a first input terminal 711, a second input terminal 712, a third input terminal 713, a fourth input terminal 714, and a fifth input terminal 715, the first input terminal, the second input terminal, the third input terminal, the fourth input terminal, and the fifth input terminal are respectively connected to the first transmission line 721, the second transmission line 722, the third transmission line 723, the fourth transmission line 724, and the fifth transmission line 725, and the data current suppressing circuit, the data receiving circuit, and the level shifter circuit are respectively connected to the corresponding first transmission line, the second transmission line, the third transmission line, the fourth transmission line, and the fifth transmission line; the integrated block 5 is respectively connected with the second transmission line, the third transmission line, the fourth transmission line and the fifth transmission line; the output end of the voltage compatible circuit is a high potential input end of the level conversion circuit.
The data current suppressing circuit includes a variable resistor RS connected in parallel between a first transmission line and a second transmission line 1 11. A varistor RS connected in parallel between the first transmission line and the third transmission line 4 12. A rheostat RS connected in parallel between the first transmission line and the fourth transmission line 7 13. A varistor RS connected in parallel between the first transmission line and the fifth transmission line 10 14。
The data receiving circuit comprises a triode Q connected in series with the second transmission line 1 21. Is arranged on a triode Q 1 And a varistor RS between the first transmission lines 2 22. Triode Q connected in series on third transmission line 2 23. Is arranged on a triode Q 2 And a varistor RS between the first transmission lines 5 24. Triode Q connected in series with fourth transmission line 3 25. Is arranged on the triode Q 3 And a varistor RS between the first transmission lines 8 26. Triode Q connected in series on fifth transmission line 4 27. Is arranged on a triode Q 4 And a varistor RS between the first transmission lines 11 28。
The level shift circuit includes a varistor RS disposed between the output terminal of the voltage-compatible circuit and the second transmission line 3 41. A varistor RS arranged between the output of the voltage-compatible circuit and the third transmission line 6 42. A varistor RS arranged between the output of the voltage-compatible circuit and the fourth transmission line 9 43. A varistor RS arranged between the output of the voltage-compatible circuit and the fifth transmission line 12 44. The integrated package is a U1PIC16LF19156 chip, and display pins connected with the liquid crystal module display module are arranged on the integrated package. The integrated block is internally provided with a voltage doubling mode, an interrupted sleep module is embedded in the integrated block, and the interrupted sleep module is connected with the liquid crystal module display module. The integrated block is provided with a downloading pin connected with an external downloading module 8, and the downloading module is a J3 chip.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a compatible many specifications voltage system's low-power consumption liquid crystal module drive circuit which characterized in that: the low-power-consumption liquid crystal module driving circuit compatible with the multi-specification voltage system comprises a data current suppression circuit connected with an external data input end, a data receiving circuit connected with the data current suppression circuit, a voltage compatible circuit connected with an external voltage input end, a level conversion circuit respectively connected with the data receiving circuit and the voltage compatible circuit, and an integrated block connected with the level conversion circuit, wherein a liquid crystal module display module is arranged on the integrated block.
2. A low power consumption lcd module driving circuit compatible with multi-specification voltage system as claimed in claim 1, wherein: the voltage compatible circuit comprises a capacitor C connected in parallel between a high potential and a low potential at an external voltage input end 1 And a capacitor C 2 And a capacitor C connected in parallel 1 And a capacitor C 2 Resistors R connected in series 1 And the low dropout voltage stabilizing chip and the filtering unit are connected to the low dropout voltage stabilizing chip in parallel, and the output end of the filtering unit is connected with the level conversion circuit.
3. The driving circuit of claim 2, wherein the driving circuit comprises: the low-dropout voltage stabilizing chip is an LD0MD5318 chip, and the filtering unit is a capacitor C arranged in parallel 3 And a capacitor C 4 。
4. The driving circuit of claim 1, wherein the driving circuit comprises: the external data input end comprises a first input end, a second input end, a third input end, a fourth input end and a fifth input end, the first input end, the second input end, the third input end, the fourth input end and the fifth input end are respectively connected with a first transmission line, a second transmission line, a third transmission line, a fourth transmission line and a fifth transmission line, and the data current suppression circuit, the data receiving circuit and the level conversion circuit are respectively connected to the corresponding first transmission line, the second transmission line, the third transmission line, the fourth transmission line and the fifth transmission line; the integrated block is respectively connected with the second transmission line, the third transmission line, the fourth transmission line and the fifth transmission line; the output end of the voltage compatible circuit is a high potential input end of the level conversion circuit.
5. The driving circuit of claim 4, wherein the driving circuit comprises: the data current suppressing circuit includes a rheostat RS connected in parallel between the first transmission line and the second transmission line 1 A rheostat RS connected in parallel between the first transmission line and the third transmission line 4 A rheostat RS connected in parallel between the first transmission line and the fourth transmission line 7 A rheostat RS connected in parallel between the first transmission line and the fifth transmission line 10 。
6. The low power consumption LCD module driving circuit compatible with multi-specification voltage system as claimed in claim 4, wherein: the data receiving circuit comprises a triode Q connected in series on the second transmission line 1 And is arranged on the triode Q 1 And a varistor RS between the first transmission lines 2 And a triode Q connected in series on the third transmission line 2 And is arranged on the triode Q 2 And a varistor RS between the first transmission lines 5 And a triode Q connected in series on the fourth transmission line 3 And a transistor Q arranged in the transistor 3 And a varistor RS between the first transmission lines 8 A triode Q connected in series with the fifth transmission line 4 And is arranged on the triode Q 4 And a varistor RS between the first transmission lines 11 。
7. The low power consumption LCD module driving circuit compatible with multi-specification voltage system as claimed in claim 4, wherein: the level shifter circuit includes a varistor RS disposed between the output of the voltage-compatible circuit and the second transmission line 3 A varistor RS arranged between the output of the voltage-compatible circuit and the third transmission line 6 A rheostat RS arranged between the output end of the voltage compatible circuit and the fourth transmission line 9 A varistor RS arranged between the output of the voltage-compatible circuit and the fifth transmission line 12 。
8. The low power consumption LCD module driving circuit compatible with multi-specification voltage system as claimed in claim 4, wherein: the integrated package is a U1PIC16LF19156 chip, and display pins connected with the liquid crystal module display module are arranged on the integrated package.
9. The driving circuit of claim 8, wherein the driving circuit comprises: the integrated block is internally provided with a voltage doubling mode, an interrupted sleep module is embedded in the integrated block, and the interrupted sleep module is connected with the liquid crystal module display module.
10. The low power consumption lcd module driving circuit compatible with multi-specification voltage system as claimed in claim 8, wherein: and the integrated block is provided with a downloading pin connected with an external downloading module, and the downloading module is a J3 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220636802.1U CN217061413U (en) | 2022-03-23 | 2022-03-23 | Low-power-consumption liquid crystal module driving circuit compatible with multi-specification voltage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220636802.1U CN217061413U (en) | 2022-03-23 | 2022-03-23 | Low-power-consumption liquid crystal module driving circuit compatible with multi-specification voltage system |
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| Publication Number | Publication Date |
|---|---|
| CN217061413U true CN217061413U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220636802.1U Active CN217061413U (en) | 2022-03-23 | 2022-03-23 | Low-power-consumption liquid crystal module driving circuit compatible with multi-specification voltage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217061413U (en) |
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- 2022-03-23 CN CN202220636802.1U patent/CN217061413U/en active Active
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