CN113035142B - Electrophoresis direction control circuit - Google Patents
Electrophoresis direction control circuit Download PDFInfo
- Publication number
- CN113035142B CN113035142B CN202110488955.6A CN202110488955A CN113035142B CN 113035142 B CN113035142 B CN 113035142B CN 202110488955 A CN202110488955 A CN 202110488955A CN 113035142 B CN113035142 B CN 113035142B
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- pin
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- resistor
- power supply
- capacitor
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 239000013256 coordination polymer Substances 0.000 claims abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 8
- 230000005684 electric field Effects 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses an electrophoresis direction control circuit, which comprises a control chip, a liquid crystal display screen, a power supply, a relay circuit, a jumper wire bonding pad and four relay switches which are arranged on a circuit board, wherein the power supply comprises a power supply switch, a capacitor CP, a resistor R1 and a diode D1, the capacitor CP is connected with the power supply switch, and the resistor R1 and the diode D1 are connected in series and then connected with the capacitor CP in parallel; the pins of the liquid crystal display screen also comprise a VSS pin, a VCC pin, a VL pin, a BLA pin and a BLK pin, wherein the VSS pin is grounded, and the VCC pin and the BLA pin are respectively connected with a power supply; a capacitor C1 is arranged between the VSS pin and the VCC pin; the VL pin is grounded through a potentiometer; the BLK pin is grounded through resistor R2. The electrophoresis direction control circuit of the invention can periodically reverse the electrophoresis direction and stop the electric field at intervals, and can perform electrophoresis detection in the periodically reverse and stop electric field, thereby obtaining more satisfactory results.
Description
Technical Field
The invention relates to an electrophoresis direction control circuit.
Background
The technology of separating charged particles with different moving speeds in an electric field is called electrophoresis technology, and the electrophoresis technology can be used for completing a series of detection and analysis processes and has wide application prospects in the aspects of biomedicine, environment detection and protection, health quarantine, judicial identification, biological reagents and the like. However, the electrophoresis apparatus currently on the market has many disadvantages, for example, the electrophoresis direction cannot be periodically reversed in the electrophoresis detection process, which limits the application of the electrophoresis apparatus in some biological detection fields.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an electrophoresis direction control circuit which can automatically change the direction of current at different time, further can periodically reverse the electrophoresis direction and stop the electric field at intervals, and can obtain more satisfactory results by performing electrophoresis detection in the periodically reverse and stop electric field.
The technical scheme for achieving the purpose is as follows: the utility model provides an electrophoresis direction control circuit, includes control chip, liquid crystal display, power, relay circuit, jumper wire pad and four relay switches that set up on the circuit board, wherein:
the pins that control chip includes are:
pins P00, P01, P02, P03, P04, P05, P06, P07, LCDRS, LCDRW and LCDEN which are respectively and electrically connected with the pins D0, D1, D2, D3, D4, D5, D6, D7, RS, RW and EN of the LCD in a one-to-one correspondence;
pin PWM and pin VDD for connection to the power supply;
A pin CTR for connection to the relay circuit;
A pin RST for connection to the jumper pad;
pins K01, K02, K03 and K04 which are used for being electrically connected with the four relay switches in a one-to-one correspondence manner;
A pin GND for ground;
The power supply comprises a power switch, a capacitor CP, a resistor R1 and a diode D1, wherein the capacitor CP is connected with the power switch, and the resistor R1 and the diode D1 are connected in series and then connected with the capacitor CP in parallel;
The pins of the liquid crystal display screen further comprise a VSS pin, a VCC pin, a VL pin, a BLA pin and a BLK pin, the VSS pin is grounded, and the VCC pin and the BLA pin are respectively connected to a power supply; a capacitor C1 is arranged between the VSS pin and the VCC pin; the VL pin is grounded through a potentiometer; the BLK pin is grounded through a resistor R2.
In the electrophoresis direction control circuit, a capacitor C2 is arranged between the pin RST and the jumper wire bonding pad;
A resistor R3 is arranged between the pin VDD and the power supply, and a connecting line between the resistor R3 and the pin VDD is grounded through a capacitor C3 and a capacitor C4 respectively;
a diode D2 and a resistor R4 are connected in series between the pin PWM and the power supply.
The above-mentioned electrophoresis direction control circuit, wherein, relay circuit includes relay K1, relay K2, diode D3, diode D4, triode Q1, triode Q2, resistance R5 and resistance R6, wherein:
after the coil of the relay K1 is connected in parallel with the diode D3, one end of the relay K1 is connected with the triode Q1 and the resistor R5 in series in sequence, and the other end of the relay K1 is connected with a power supply;
After the coil of the relay K2 is connected in parallel with the diode D4, one end of the relay K2 is connected in series with the triode Q2 and the resistor R6 in sequence, and the other end of the relay K2 is connected with a power supply;
one end of the triode Q1 and one end of the triode Q2 are respectively grounded;
The resistor R5 and the resistor R6 are respectively connected with the pin CTR;
the contact of the relay K1 is provided with an interface J2 and an interface J4;
the contact of the relay K2 is provided with an interface J3 and an interface J5;
The contact point of the relay K1 and the connection point of the interface J2 are connected with the contact point of the relay K2;
The contact point of the relay K2 and the interface J3 is connected with the contact point of the relay K1.
In the above-mentioned electrophoresis direction control circuit, the four relay switches are grounded respectively.
The electrophoresis direction control circuit can automatically change the direction of current at different time, further can periodically reverse the electrophoresis direction and stop the electric field at intervals, and can obtain more satisfactory results by performing electrophoresis detection in the periodically reverse and stop electric field.
Drawings
Fig. 1 is a schematic diagram of a control chip of an electrophoresis direction control circuit according to the present invention;
FIG. 2 is a schematic diagram of a LCD display of the electrophoresis direction control circuit of the present invention;
FIG. 3 is a schematic diagram of the power supply of the electrophoresis direction control circuit according to the present invention;
Fig. 4 is a schematic structural diagram of a relay circuit of the electrophoresis direction control circuit of the present invention;
fig. 5 is a schematic structural diagram of four relay switches of the electrophoresis direction control circuit of the present invention;
Fig. 6 is a schematic structural diagram of a jumper pad of the electrophoresis direction control circuit of the present invention.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present invention, the following detailed description is provided with reference to the accompanying drawings:
Referring to fig. 1,2,3,4, 5 and 6, an electrophoresis direction control circuit according to the preferred embodiment of the present invention comprises a control chip 1, a liquid crystal display 2, a power supply 3, a relay circuit 4, a jumper pad 5 and four relay switches, wherein the four relay switches are respectively a relay switch S1, a relay switch S2, a relay switch S3 and a relay switch S4 (see fig. 5), which are arranged on a circuit board.
The control chip 1 adopts an N76E003 chip, and pins included in the control chip 1 are as follows:
pins P00, P01, P02, P03, P04, P05, P06, P07, LCDRS, LCDRW and LCDEN which are respectively and electrically connected with the pins D0, D1, D2, D3, D4, D5, D6, D7, RS, RW and EN of the LCD in a one-to-one correspondence;
pin PWM and pin VDD for connection to power supply 3;
a pin CTR for connection to the relay circuit 4;
a pin RST for connection to the jumper pad 5;
pins K01, K02, K03 and K04 for one-to-one corresponding electrical connection with the relay switch S1, the relay switch S2, the relay switch S3 and the relay switch S4;
Pin GND for ground.
A capacitor C2 is arranged between the pin RST and the jumper wire bonding pad 5; a resistor R3 is arranged between the pin VDD and the power supply 3, and a connecting line between the resistor R3 and the pin VDD is grounded through a capacitor C3 and a capacitor C4 respectively; a diode D2 and a resistor R4 are connected in series between the pin PWM and the power supply.
Referring to fig. 3 again, the power supply 3 includes a power switch SW, a capacitor CP, a resistor R1 and a diode D1, where the capacitor CP is connected to the power switch SW, and the resistor R1 and the diode D1 are connected in series and then connected in parallel to the capacitor CP; the power supply 3 is provided with an interface J1 and is externally connected with a power supply system.
Referring to fig. 2 again, the LCD is model 1206, and the pins of the LCD further include a VSS pin, a VCC pin, a VL pin, a BLA pin, and a BLK pin, where the VSS pin is grounded, and the VCC pin and the BLA pin are connected to a power supply respectively; a capacitor C1 is arranged between the VSS pin and the VCC pin; the VL pin is grounded through a potentiometer RADJ; the BLK pin is grounded through resistor R2.
Referring to fig. 4 again, the relay circuit 4 includes a relay K1, a relay K2, a diode D3, a diode D4, a transistor Q1, a transistor Q2, a resistor R5, and a resistor R6, wherein: after the coil of the relay K1 is connected in parallel with the diode D3, one end of the relay K1 is connected with the triode Q1 and the resistor R5 in series in sequence, and the other end of the relay K1 is connected with a power supply; after the coil of the relay K2 is connected in parallel with the diode D4, one end of the relay K2 is connected in series with the triode Q2 and the resistor R6 in sequence, and the other end of the relay K2 is connected with a power supply; one end of the triode Q1 and one end of the triode Q2 are respectively grounded; the resistor R5 and the resistor R6 are respectively connected with the pin CTR; the contact of the relay K1 is provided with an interface J2 and an interface J4; the contact of the relay K2 is provided with an interface J3 and an interface J5; the connection point of the contact of the relay K1 and the interface J2 is connected with the contact of the relay K2; the connection point of the contact of the relay K2 and the interface J3 is connected with the contact of the relay K1.
Referring to fig. 5 again, relay switch S1, relay switch S2, relay switch S3 and relay switch S4 are grounded respectively.
Referring to fig. 6 again, one end of the jumper pad 5 is connected to the power supply, and the other end is grounded.
When the electrophoresis direction control circuit is used, the control chip 1 controls the relay K1 and the relay K2 to be alternately connected according to the input time by inputting the time on the liquid crystal display screen 2, and automatically changes the direction of current, for example, the current is set for 30 minutes, if the original electrophoresis direction is positive from negative, after 30 minutes, the current direction can be circularly reciprocated from positive to negative and from negative to positive after 30 minutes, so that the electrophoresis direction can be periodically reversed and the electric field is stopped at intervals, and the electrophoresis detection can be carried out in the periodically reversed and stopped electric field, so that more satisfactory results can be obtained.
In summary, the electrophoresis direction control circuit of the present invention can automatically change the direction of the current at different times, so as to periodically reverse the electrophoresis direction and stop the electric field at intervals, and perform electrophoresis detection in the periodically reverse and stop electric field, thereby obtaining more satisfactory results.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (1)
1. The utility model provides an electrophoresis direction control circuit which characterized in that, including setting up control chip, liquid crystal display, power, relay circuit, jumper wire pad and four relay switches on the circuit board, wherein:
the pins that control chip includes are:
pins P00, P01, P02, P03, P04, P05, P06, P07, LCDRS, LCDRW and LCDEN which are respectively and electrically connected with the pins D0, D1, D2, D3, D4, D5, D6, D7, RS, RW and EN of the LCD in a one-to-one correspondence;
pin PWM and pin VDD for connection to the power supply;
A pin CTR for connection to the relay circuit;
A pin RST for connection to the jumper pad;
pins K01, K02, K03 and K04 which are used for being electrically connected with the four relay switches in a one-to-one correspondence manner;
A pin GND for ground;
The power supply comprises a power switch, a capacitor CP, a resistor R1 and a diode D1, wherein the capacitor CP is connected with the power switch, and the resistor R1 and the diode D1 are connected in series and then connected with the capacitor CP in parallel;
The pins of the liquid crystal display screen further comprise a VSS pin, a VCC pin, a VL pin, a BLA pin and a BLK pin, the VSS pin is grounded, and the VCC pin and the BLA pin are respectively connected to a power supply; a capacitor C1 is arranged between the VSS pin and the VCC pin; the VL pin is grounded through a potentiometer; the BLK pin is grounded through a resistor R2;
a capacitor C2 is arranged between the pin RST and the jumper wire bonding pad;
A resistor R3 is arranged between the pin VDD and the power supply, and a connecting line between the resistor R3 and the pin VDD is grounded through a capacitor C3 and a capacitor C4 respectively;
A diode D2 and a resistor R4 are connected in series between the pin PWM and the power supply;
The relay circuit comprises a relay K1, a relay K2, a diode D3, a diode D4, a triode Q1, a triode Q2, a resistor R5 and a resistor R6, wherein:
after the coil of the relay K1 is connected in parallel with the diode D3, one end of the relay K1 is connected with the triode Q1 and the resistor R5 in series in sequence, and the other end of the relay K1 is connected with a power supply;
After the coil of the relay K2 is connected in parallel with the diode D4, one end of the relay K2 is connected in series with the triode Q2 and the resistor R6 in sequence, and the other end of the relay K2 is connected with a power supply;
one end of the triode Q1 and one end of the triode Q2 are respectively grounded;
The resistor R5 and the resistor R6 are respectively connected with the pin CTR;
the contact of the relay K1 is provided with an interface J2 and an interface J4;
the contact of the relay K2 is provided with an interface J3 and an interface J5;
The contact point of the relay K1 and the connection point of the interface J2 are connected with the contact point of the relay K2;
the contact point of the relay K2 and the connection point of the interface J3 are connected with the contact point of the relay K1;
the four relay switches are respectively grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488955.6A CN113035142B (en) | 2021-05-06 | 2021-05-06 | Electrophoresis direction control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488955.6A CN113035142B (en) | 2021-05-06 | 2021-05-06 | Electrophoresis direction control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113035142A CN113035142A (en) | 2021-06-25 |
| CN113035142B true CN113035142B (en) | 2024-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110488955.6A Active CN113035142B (en) | 2021-05-06 | 2021-05-06 | Electrophoresis direction control circuit |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214587962U (en) * | 2021-05-06 | 2021-11-02 | 上海交通大学医学院附属第九人民医院 | Electrophoresis direction control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101432804B1 (en) * | 2006-12-13 | 2014-08-27 | 엘지디스플레이 주식회사 | Electrophoresis display and driving method thereof |
| CN108491017A (en) * | 2018-03-02 | 2018-09-04 | 常州市派腾电子技术服务有限公司 | Voltage follower circuit, method and electronic cigarette |
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- 2021-05-06 CN CN202110488955.6A patent/CN113035142B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214587962U (en) * | 2021-05-06 | 2021-11-02 | 上海交通大学医学院附属第九人民医院 | Electrophoresis direction control circuit |
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| CN113035142A (en) | 2021-06-25 |
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