CN215481328U - Constant-current pole-reversing control circuit - Google Patents
Constant-current pole-reversing control circuit Download PDFInfo
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- CN215481328U CN215481328U CN202122016506.XU CN202122016506U CN215481328U CN 215481328 U CN215481328 U CN 215481328U CN 202122016506 U CN202122016506 U CN 202122016506U CN 215481328 U CN215481328 U CN 215481328U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 3
- 230000007717 exclusion Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a constant-current inverted-pole control circuit, which comprises a constant-current circuit, a positive and negative polarity switching circuit, a single chip microcomputer and a voltage conversion circuit, wherein the positive and negative polarity switching circuit is composed of a bridge arm formed by triodes, high and low levels are output through two pins of the single chip microcomputer to realize polarity switching, and the voltage conversion circuit is divided into two parts, one part is a single chip microcomputer power supply circuit, and the other part is a-3 v voltage generation circuit. The constant-current pole-reversing control circuit can be applied to occasions needing to switch electrodes and constant currents, and can switch the electrodes in real time when being applied to the field of water electrolysis, so that the problem of an electrode structure can be solved.
Description
Technical Field
The utility model relates to the technical field of electrolyzed water, in particular to a constant-current reverse-pole control circuit.
Background
Inverting the polarity is to change the polarity of the electrode. In some electrolysis processes, long-term use can form pollutants on the surface of an electrode, influence the electrolysis efficiency and reduce the service life of the electrode. If the polarities of the two electrodes are exchanged frequently, the formation of pollutants on the surfaces of the electrodes can be effectively prevented, and the electrolytic efficiency and the service life of the electrodes are favorably maintained.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a constant current reverse polarity control circuit to solve the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme: a constant-current inverted-pole control circuit comprises a constant-current circuit, a positive and negative polarity switching circuit, a single chip microcomputer and a voltage conversion circuit, wherein the positive and negative polarity switching circuit is composed of a bridge arm formed by triodes, high and low levels are output through two pins of the single chip microcomputer to realize polarity switching, and the voltage conversion circuit is divided into two parts, one part is a single chip microcomputer power supply circuit, and the other part is a-3 v voltage generation circuit.
Preferably, the positive and negative polarity switching circuit consists of an N-channel enhancement type MOS, a triode, optocouplers and a resistor, a group of through bridge arms is formed by V1 and V4, a group of through bridge arms is formed by V2 and V3, two groups of optocouplers are formed by N6, a mutual exclusion circuit is formed by V5 and V6, and two control pins ONOF1-PA1, ONOF2-PA7 and Vo + are connected with two pole pieces.
Preferably, the voltage conversion circuit consists of a resistor, a capacitor, a diode, a voltage regulator tube and a triode, the PWM1-PA6 is a pin of a single chip microcomputer, the high and low levels are output, the frequency is 4kHz, and the duty ratio is 50%.
Preferably, the constant current circuit consists of an integrated circuit and a peripheral circuit, the LD + and the LD-supply power to the water electrolysis module, the N1 is a voltage reduction type PWM control driver, the current value is determined by the resistance value of R1, and the formula is as follows: iout = (Vin-Vsense)/R1.
Preferably, the single-chip peripheral circuit only has a filter capacitor, the 2 pin is a PWM waveform output pin, and the 5 pin and the 6 pin control the positive and negative polarity switching circuit.
Preferably, the power supply circuit of the single chip microcomputer needs to convert voltage to supply power to the single chip microcomputer because the system input voltage is 12v and the power supply voltage of the single chip microcomputer is 5 v.
Compared with the prior art, the utility model has the beneficial effects that: the constant-current pole-reversing control circuit can be applied to occasions needing to switch electrodes and constant currents, and can switch the electrodes in real time when being applied to the field of water electrolysis, so that the problem of an electrode structure can be solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a circuit diagram of switching between positive and negative polarities according to the present invention;
FIG. 3 is a diagram of the PWM controlled capacitor charge and discharge of the present invention;
FIG. 4 is a constant current circuit diagram of the present invention;
FIG. 5 is a circuit diagram of a single chip microcomputer of the present invention;
fig. 6 is a power supply circuit diagram of the single chip microcomputer of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a constant-current inverted-pole control circuit comprises a constant-current circuit, a positive and negative polarity switching circuit, a single chip microcomputer and a voltage conversion circuit, wherein the positive and negative polarity switching circuit is composed of a bridge arm formed by triodes, high and low levels are output through two pins of the single chip microcomputer to realize polarity switching, and the voltage conversion circuit is divided into two parts, one part is a single chip microcomputer power supply circuit, and the other part is a-3 v voltage generation circuit.
As shown in fig. 1, a battery supplies power to the electrolyzed water module, the electrical ports of the electrolyzed water module are the B terminal and the a terminal, and in order to alleviate the scaling of the pole piece, the polarity needs to be switched, the left side diagram, the B terminal is negative, the a terminal is positive, the right side diagram, the B terminal is positive, and the a terminal is negative.
As shown in fig. 2, the positive and negative polarity switching circuit is composed of an N-channel enhancement MOS, a triode, an optocoupler and a resistor, wherein V1 and V4 form a group of through bridge arms, V2 and V3 form a group of through bridge arms, N6 is two groups of optocouplers, V5 and V6 form an exclusive circuit, and two control pins ONOF1-PA1, ONOF2-PA7, Vo +, Vo-are connected with two pole pieces;
when the output ONOF1-PA1 of the single chip microcomputer is at a high level and the output ONOF2-PA7 is at a low level, V5 is conducted, the voltage of the pin 3 of N6 is pulled low through V5, V2 and V3 are not conducted, Vin and LD + are 12V, LD-is 0V, the pins 7 and 8 of N6 are conducted, the grid of V4 is-3V, and V4 is conducted; meanwhile, Vin, R9, R11 and-3V form a loop, so that the grid voltage of V1 is smaller than LD +, the conduction condition is met, V1 is conducted, at the moment, Vo + is low potential, the voltage is LD-, Vo-is high potential, and the voltage is LD +;
when the output ONOF1-PA1 of the single chip microcomputer is at a low level and the output ONOF2-PA7 is at a high level, V6 is conducted, the voltage of a pin 1 of N6 is pulled low through V6, V1 and V4 are not conducted, pins 5 and 6 of N6 are conducted, the grid electrode of V3 is-3V, and V4 is conducted; meanwhile, Vin, R7, R8 and-3V form a loop, so that the grid voltage of V2 is smaller than LD +, the conduction condition is met, V2 is conducted, at the moment, Vo + is high potential, the voltage is LD +, Vo-is low potential, and the voltage is LD-.
As shown in fig. 3, the voltage conversion circuit is composed of a resistor, a capacitor, a diode, a voltage regulator and a triode, the PWM1-PA6 is a single chip pin, and outputs high and low levels, the frequency is 4kHz, and the duty ratio is 50%;
when the base voltage of V7 is less than 0.6V, V7 is cut off, at the moment, Vin charges C5 through R2 and D2, the left end of C5 is positive charge, and the right end of C5 is negative charge;
when the base voltage of V7 is greater than 0.7V, V7 is turned on, and C5 is discharged, C6 is charged, the charging loop is C1- > V7- > C6- > D3, the left end of C6 is positively charged, the right end is negatively charged, the voltage at the node of C6 and D3 is negative because the left end is grounded, and the voltage at the node is-11V without ZD5 for the resistance value and the voltage value in the design; in the case of ZD5, the voltage value at this point depends on the regulated voltage value of ZD5, and in this case, the regulated voltage value of ZD5 is selected to be 3v, so that the voltage value at this point is-3 v.
As shown in fig. 4, the constant current circuit is composed of an integrated circuit and a peripheral circuit, LD +, LD-supply power to the water electrolysis module, N1 is a voltage reduction type PWM control driver, the current value is determined by the resistance value of R1, and the formula is: iout = (Vin-Vsense)/R1.
As shown in fig. 5, the single-chip peripheral circuit only has a filter capacitor, a pin 2 is a PWM waveform output pin, and pins 5 and 6 control the positive and negative polarity switching circuit.
As shown in fig. 6, the power supply circuit of the single chip microcomputer needs to convert voltage to supply power to the single chip microcomputer, because the system input voltage is 12v and the power supply voltage of the single chip microcomputer is 5 v.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A constant current pole-reversing control circuit is characterized in that: the circuit comprises a constant current circuit, a positive and negative polarity switching circuit, a single chip microcomputer and a voltage conversion circuit, wherein the positive and negative polarity switching circuit is composed of a bridge arm formed by triodes, high and low levels are output through two pins of the single chip microcomputer to realize polarity switching, and the voltage conversion circuit is divided into two parts, wherein one part is a single chip microcomputer power supply circuit, and the other part is a-3 v voltage generation circuit.
2. The constant-current reverse-pole control circuit according to claim 1, wherein: the positive and negative polarity switching circuit consists of an N-channel enhanced MOS, a triode, optical couplers and a resistor, a group of through bridge arms is formed by V1 and V4, a group of through bridge arms is formed by V2 and V3, N6 is two groups of optical couplers, a mutual exclusion circuit is formed by V5 and V6, and two control pins ONOF1-PA1, ONOF2-PA7, Vo + and Vo-are connected with two pole pieces.
3. The constant-current reverse-pole control circuit according to claim 1, wherein: the voltage conversion circuit consists of a resistor, a capacitor, a diode, a voltage regulator tube and a triode, wherein the PWM1-PA6 is a pin of a single chip microcomputer, and outputs high and low levels, the frequency is 4kHz, and the duty ratio is 50%.
4. The constant-current reverse-pole control circuit according to claim 1, wherein: the constant current circuit consists of an integrated circuit and a peripheral circuit, LD + and LD-supply power to the water electrolysis module, N1 is a voltage reduction type PWM control driver, the current value is determined by the resistance value of R1, and the formula is as follows: iout = (Vin-Vsense)/R1.
5. The constant-current reverse-pole control circuit according to claim 1, wherein: the single-chip peripheral circuit only has a filter capacitor, a pin 2 is a PWM waveform output pin, and pins 5 and 6 control the positive and negative polarity switching circuit.
6. The constant-current reverse-pole control circuit according to claim 5, wherein: the power supply circuit of the single chip microcomputer needs to convert voltage to supply power to the single chip microcomputer because the system input voltage is 12v and the power supply voltage of the single chip microcomputer is 5 v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122016506.XU CN215481328U (en) | 2021-08-25 | 2021-08-25 | Constant-current pole-reversing control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122016506.XU CN215481328U (en) | 2021-08-25 | 2021-08-25 | Constant-current pole-reversing control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN215481328U true CN215481328U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122016506.XU Expired - Fee Related CN215481328U (en) | 2021-08-25 | 2021-08-25 | Constant-current pole-reversing control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116526438A (en) * | 2023-07-04 | 2023-08-01 | 汉德森工业(天津)有限公司 | Circuit for electrolysis, controller of electrolyzer and electrolyzer |
-
2021
- 2021-08-25 CN CN202122016506.XU patent/CN215481328U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116526438A (en) * | 2023-07-04 | 2023-08-01 | 汉德森工业(天津)有限公司 | Circuit for electrolysis, controller of electrolyzer and electrolyzer |
| CN116526438B (en) * | 2023-07-04 | 2023-12-22 | 汉德森工业(天津)有限公司 | Circuit for electrolysis, controller of electrolyzer and electrolyzer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |