CN216946337U - Current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment - Google Patents
Current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment Download PDFInfo
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- CN216946337U CN216946337U CN202123453915.2U CN202123453915U CN216946337U CN 216946337 U CN216946337 U CN 216946337U CN 202123453915 U CN202123453915 U CN 202123453915U CN 216946337 U CN216946337 U CN 216946337U
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Abstract
The utility model relates to a current-adjustable power supply circuit for water electrolysis and water electrolysis equipment, wherein the power supply circuit comprises a power supply control module, a voltage conversion module, a current sampling module, a current regulation module and an MCU (microprogrammed control Unit), wherein the voltage control signal output end of the power supply control module is connected with the voltage conversion module to control the voltage conversion module to work so as to reduce an input first voltage into a second voltage to supply power to an electrode of the electrolyzed water, the current sampling module is connected in series in a power supply loop of the voltage conversion module to the electrode of the electrolyzed water, the output end of the current sampling module is connected with the MCU, the current control signal output end of the MCU is connected with one input end of the current regulation module, and the output end of the current regulation module is connected with the current feedback signal input end of the power supply control module. The power supply circuit meets the requirement of users for adjusting the concentration of the electrolyzed water, and improves the user experience.
Description
Technical Field
The utility model relates to a current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment, and belongs to the field of electrolytic water purification control.
Background
The water electrolysis equipment is used for supplying power to two adjacent electrodes of the electrolysis water, so that an electric field is established between the two electrodes, and the water near the two electrodes generates a chemical reaction of the electrolysis water to generate an active ingredient for disinfection and sterilization. When the electrolytic water equipment works, concentration values of active ingredients generated when the electrolytic water equipment works, such as 50ppm, 100ppm, 150ppm and the like, are sometimes set according to the requirements of users, and different concentrations substantially correspond to different currents when the electrolytic water electrode works, so that a power supply circuit of the electrolytic water equipment, which can stably output different preset values of currents for the electrolytic water electrode, is required.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to solve the problem that different stable current values are required to be output for power supply of an electrolytic water electrode when a user of the existing electrolytic water equipment needs to set different electrolytic concentrations.
The utility model provides a current-adjustable power supply circuit for electrolyzing water, which comprises a power supply control module, a voltage conversion module, a current sampling module, a current adjusting module and an MCU (microprogrammed control unit);
the voltage control signal output end of the power supply control module is connected with the voltage conversion module to control the voltage conversion module to work, and the input first voltage is reduced into a second voltage to supply power to the electrolytic water electrode;
the current sampling module is connected in series in a power supply loop of the voltage conversion module to the electrolytic water electrode, the output end of the current sampling module is connected with the MCU, and the current control signal output end of the MCU is connected with one input end of the current adjusting module;
the output end of the current regulating module is connected with the current feedback signal input end of the power supply control module;
the MCU outputs a corresponding PWM signal to the current regulation module according to the voltage signal value of the output end of the current sampling module, the current regulation module outputs a corresponding voltage signal to the current feedback signal input end of the power supply control module according to the PWM signal, and the power supply control module regulates the output voltage control signal to the voltage conversion module according to the voltage signal so that the output current of the voltage conversion module is stabilized at a preset value.
Optionally, the power supply circuit further includes a differential amplification module, two input ends of the differential amplification module are connected to two ends of the output of the current sampling module, and an output end of the differential amplification module is connected to the MCU.
Optionally, the positive electrode of the output end of the voltage conversion module is connected with the first electrode of the electrolytic water electrode, the second electrode of the electrolytic water electrode is connected with one end of the current sampling module, and the other end of the current sampling module is grounded.
Optionally, two input terminals of the differential amplification module are connected to two connection terminals of the output of the current sampling module.
Optionally, the differential amplification module includes a first operational amplifier, a tenth resistor, an eighty resistor, a sixteenth resistor, and a thirty-first resistor;
one end of the tenth resistor is an input end of the differential amplification module, the other end of the tenth resistor and one end of the eighty resistor are connected to the non-inverting input end of the first operational amplifier, one end of the sixteenth resistor is another input end of the differential amplification module, the other end of the sixteenth resistor and one end of the sixty resistor are connected to the inverting input end of the first operational amplifier, the other end of the sixty resistor and one end of the thirty-first resistor are connected to the output end of the first operational amplifier, and the other end of the thirty-first resistor is the output end of the differential amplification module.
Optionally, the other input terminal of the current regulation module is connected to one terminal of the current sampling module.
Optionally, the current regulation module includes a second operational amplifier, a forty-fourth resistor, a fifty-eighth resistor, a second resistor, a third resistor, an eleventh capacitor, a ninth capacitor, and a third diode;
one end of a forty-fourth resistor is an input end of the current regulation module, the other end of the forty-fourth resistor and one end of a fifty-eighth resistor, one end of a ninth capacitor and one end of a third resistor are connected to the inverting input end of the second operational amplifier in a sharing mode, the other end of the fifty-eighth resistor and the other end of the ninth capacitor are connected to the ground in a sharing mode, one end of the second resistor is the other input end of the current regulation module, the other end of the second resistor is connected to the non-inverting input end of the second operational amplifier, the other end of the third resistor is connected to one end of an eleventh capacitor, the other end of the eleventh capacitor and the output end of the second operational amplifier are connected to the anode of a third diode in a sharing mode, and the cathode of the third diode is the output end of the current regulation module.
The utility model also provides water electrolysis equipment which is provided with the power supply circuit with adjustable current for electrolyzing water.
Optionally, the electrolyzed water apparatus further includes a key module, the key module is configured to receive a set electrolyzed water concentration value, an output end of the key module is connected to the MCU, and the MCU adjusts a pulse width of the PWM signal output to the current adjusting module according to the set electrolyzed water concentration value, so that the current adjusting module controls the power control module to output a corresponding voltage control signal to the voltage conversion module, and the voltage conversion module adjusts a supply voltage corresponding to the electrolyzed water electrode, so that the supply current to the electrolyzed water electrode reaches a current value corresponding to the set electrolyzed water concentration value.
The power supply circuit comprises a power supply control module, a voltage conversion module, a current sampling module, a current regulation module and an MCU (microprogrammed control Unit), wherein the voltage control signal output end of the power supply control module is connected with the voltage conversion module so as to control the voltage conversion module to work and reduce an input first voltage into a second voltage so as to supply power to an electrode of electrolyzed water; the current sampling module is connected in series in a power supply loop of the voltage conversion module to the electrolytic water electrode, the output end of the current sampling module is connected with the MCU, and the current control signal output end of the MCU is connected with one input end of the current adjusting module; the output end of the current regulating module is connected with the current feedback signal input end of the power supply control module; the MCU outputs a corresponding PWM signal to the current regulation module according to the voltage signal value of the output end of the current sampling module, the current regulation module outputs a corresponding voltage signal to the current feedback signal input end of the power supply control module according to the PWM signal, and the power supply control module regulates the output voltage control signal to the voltage conversion module according to the voltage signal so that the output current of the voltage conversion module is stabilized at a preset value. Therefore, the requirement of the user for adjusting the concentration of the electrolyzed water is met, and the user experience is improved.
Drawings
Fig. 1 is a schematic circuit diagram of a current-regulated power supply circuit for electrolyzing water in accordance with an embodiment of the present invention.
Detailed Description
It is to be noted that the embodiments and features of the embodiments may be combined with each other without conflict in structure or function. The present invention will be described in detail below with reference to examples.
The utility model provides a current-adjustable power supply circuit for electrolyzing water, which comprises a power supply control module 20, a voltage conversion module 30, a current sampling module 50, a current adjusting module 10 and an MCU40, as shown in figure 1;
the voltage control signal output end of the power control module 20 is connected to the voltage conversion module 30 to control the voltage conversion module 30 to work, and the input first voltage is reduced to a second voltage to supply power to the electrolytic water electrode 60; the current sampling module 50 is connected in series in a power supply loop of the voltage conversion module 30 to the electrolytic water electrode 60, the output end of the current sampling module 50 is connected with the MCU40, and the current control signal output end of the MCU40 is connected with one input end of the current adjusting module 10; the output end of the current regulation module 10 is connected with the current feedback signal input end of the power control module 20; the MCU40 outputs a corresponding PWM signal to the current adjusting module 10 according to the voltage signal value at the output end of the current sampling module 50, the current adjusting module 10 outputs a corresponding voltage signal to the current feedback signal input end of the power control module 20 according to the PWM signal, and the power control module 20 adjusts the output voltage control signal to the voltage converting module 30 according to the voltage signal, so that the output current of the voltage converting module 30 is stabilized at a preset value.
The power control module 20 is used in cooperation with the voltage conversion module 30 to implement a DC-DC (direct current-direct current) converter for performing step-up or step-down conversion on the direct current, and in the embodiment of the present invention, the step-down conversion is implemented to supply power to the electrolyzed water electrode 60 of the electrolyzed water equipment so as to enable the electrolyzed water electrode 60 to perform water electrolysis operation. Aiming at the electrolytic water working principle of the electrolytic water electrode 60, the higher the working current is, the higher the concentration of the active ingredients of the generated electrolytic water is, the better the disinfection and sterilization effects are, therefore, under the condition of certain power supply input power, the power supply voltage to the electrolytic water electrode 60 should be relatively low so as to obtain higher working current, generally the working voltage is 3-8V, and the working current can reach 10A so as to realize high sterilization efficiency. However, when the working voltage is 8V and the working current is 10A, the theoretical value of the power is 80W, the power of the input power supply meets the requirement of high power, the output voltage ratio is higher, such as 24V, and the voltage is reduced through the DC-DC converter to supply power to the electrolytic water electrode 60. In addition to the high concentration electrolytic environment, the user may also have different requirements for the electrolytic concentration when using the device, for example, different electrolytic concentrations are required for different sterilized substances, and at this time, the user may set the electrolytic concentration such as 50ppm, 100ppm, 150ppm, etc. by using the buttons on the electrolytic water device, and the different electrolytic water concentrations are substantially corresponding to different stable current values such as 3A, 5A, 9A, etc. for the power supply current of the electrolytic water electrode 60. In order to implement the above functions, in the above embodiment, the current sampling module 50 samples the working current of the electrolytic water electrode 60, and converts the working current into a corresponding sampling voltage to output to the MCU40, the MCU40 compares a value corresponding to the sampling voltage with a preset voltage parameter value corresponding to a preset working current, and continuously adjusts an effective pulse width value of PWM corresponding to the output current control signal, and outputs a corresponding adjusting voltage to the power control module 20 through the current adjusting module 10, and the voltage control module outputs a corresponding voltage control signal to the voltage converting module 30 to adjust a working state of the switching tube in the voltage converting module 30, so that the output power supply voltage changes to change the working current of the electrolytic water electrode 60, and finally stabilizes the working current at the preset working current value. Therefore, the requirement of the user for adjusting the concentration of the electrolyzed water is met, and the user experience is improved.
In some embodiments of the present invention, the power supply circuit further includes a differential amplification module 70, two input terminals of the differential amplification module 70 are connected to two ends of the output of the current sampling module 50, and an output terminal of the differential amplification module 70 is connected to the MCU 40. Because the current sampling module 50 is connected in series in the power supply loop of the electrolytic water electrode 60, in order to reduce the partial pressure of the current sampling module 50 as much as possible to influence the power supply power of the electrolytic water electrode 60, the partial pressure of the current sampling module 50 should be as low as possible, especially in a large-current working environment, such as 30-100mV, so that in order to meet the accuracy of the identification of the a/D sampling port of the MCU40, the sampling voltage output by the current sampling module 50 needs to be amplified by voltage, such as 30 times of amplification to 0.9-3V, thereby facilitating the accurate identification of the MCU 40. In order to further reduce the common mode interference brought by the current sampling module 50 in the working process, the input end of the sampling differential amplifying circuit is connected to the two ends of the output of the current sampling module 50. Specifically, as shown in fig. 1, the current sampling module 50 is mainly composed of a current sampling resistor RS1, and the resistance value of the current sampling resistor RS1 is very low, for example, 5m Ω, so as to reduce the power consumption thereof. The current sampling module 50 may further be connected in series to one end of a ground line in the power supply loop, as shown in fig. 1, so as to facilitate that each path of voltage at the input end of the differential amplification circuit is relatively low to ground to meet the input voltage parameter requirement. Specifically, the positive electrode of the output end of the voltage conversion module 30 is connected to the first electrode T1 of the electrolytic water electrode 60, the second electrode T2 of the electrolytic water electrode 60 is connected to one end of the current sampling module 50, i.e., the current sampling resistor RS1, and the other end of the current sampling module 50, i.e., the current sampling resistor RS1, is grounded.
In fig. 1, one end of the current sampling resistor RS1 is connected to the second electrode T2 of the electrolytic water electrode 60 through an output connection port, the other end is grounded, and in the PCB wiring corresponding to the circuit board, the other end is connected to the ground wire trace, because the current of the power supply loop is large, a certain voltage difference is generated on the trace when the current on the ground wire trace is large, in order to further reduce the error of the sampling voltage, the traces at the two input ends of the differential amplification circuit are directly connected to the current sampling module 50, i.e., the two connection ends of the current sampling resistor RS1, rather than one end of the differential amplification circuit being connected to the far ground wire end, so that the sampling voltage is ensured to be consistent with the voltage output by the current sampling resistor RS1 as much as possible, and the sampling accuracy is improved.
In some embodiments of the present invention, as shown in fig. 1, another input of the current regulation module 10 is connected to one end of the current sampling module 50. The current adjusting module 10 converts the PWM signal of the current control signal output by the MCU40 into a stable voltage signal, and inputs the stable voltage signal to the power control module 20, so as to finally control the voltage converting module 30 to adjust the output voltage, so that the working circuit current reaches a preset current value. When the working current does not reach the preset current, the PWM signal output by the MCU40 is constantly changing, so that the output voltage does not fluctuate excessively when the current regulating module 10 outputs the corresponding voltage signal to finally control the voltage converting module 30 to adjust, the sampling signal of the current sampling module 50 is introduced into the other input end of the current regulating module 10, so that the output voltage signal refers to the change of the sampling signal of the current, and finally the voltage converting module 30 adjusts its output voltage to gradually adjust to the voltage corresponding to the preset working current.
Specifically, in some embodiments of the present invention, as shown in fig. 1, the differential amplification module 70 includes a first operational amplifier IC1, a tenth resistor R10, an eighty resistor R80, a sixteenth resistor R16, a sixty resistor R60, and a thirty-first resistor R31; one end of a tenth resistor R10 is an input end of the differential amplification module 70, the other end of the tenth resistor R10 and one end of an eighty resistor R80 are commonly connected to a non-inverting input end of the first operational amplifier IC1, one end of a sixteenth resistor R16 is another input end of the differential amplification module 70, the other end of a sixteenth resistor R16 and one end of a sixty resistor R60 are commonly connected to an inverting input end of the first operational amplifier IC1, the other end of the sixty resistor R60 and one end of a thirty-first resistor R31 are commonly connected to an output end of the first operational amplifier IC1, and the other end of a thirty-first resistor R31 is an output end of the differential amplification module 70.
The current regulation module 10 includes a second operational amplifier IC2, a forty-fourth resistor R44, a fifty-eighth resistor R58, a second resistor R2, a third resistor R3, an eleventh capacitor R11, a ninth capacitor R9, and a third diode D3; one end of a forty-fourth resistor R44 is an input end of the current regulation module 10, the other end of the forty-fourth resistor R44 and one end of a fifty-eighth resistor R58, one end of a ninth capacitor R9 and one end of a third resistor R3 are commonly connected to the inverting input end of the second operational amplifier IC2, the other end of the fifty-eighth resistor R58 and the other end of the ninth capacitor R9 are commonly connected to ground, one end of the second resistor R2 is another input end of the current regulation module 10, the other end of the second resistor R2 is connected to the non-inverting input end of the second operational amplifier IC2, the other end of the third resistor R3 is connected to one end of an eleventh capacitor R11, the other end of the eleventh capacitor R11 and the output end of the second operational amplifier IC2 are commonly connected to the anode of a third diode D3, and the cathode of the third diode D3 is the output end of the current regulation module 10.
The power control module 20 mainly comprises a pwm circuit based on the pwm chip TL494, wherein the current feedback signal input end OCCP1 is a non-inverting input end of an internal comparator of the pwm chip, and compares the current feedback signal with a reference voltage input by the non-inverting input end and amplifies the comparison result, and outputs an amplified voltage to a control end of an internal pwm circuit, so as to control the width of an effective pwm of the pwm signal. The voltage conversion module 30 is mainly a voltage reduction circuit composed of a switching tube, i.e., a first PMOS tube Q1, a first inductor L1, and a ninth electrolytic capacitor EC9, and a PWM signal output end of the pulse width modulation circuit is connected to a control end of the switching tube, i.e., a gate of the first PMOS tube Q1, so as to control a switching working state of the first PMOS tube Q1, and finally, a power supply voltage is output at two ends of the ninth electrolytic capacitor EC9 to supply power to two electrodes of the electrolytic water.
The working principle of the power supply circuit mentioned in the above embodiment is as follows: when the electrolytic water electrode 60 works, the current in the power supply loop generates a small sampling voltage on the current sampling resistor RS1, the first operational amplifier IC1 amplifies the sampling voltage and inputs the sampling voltage to the A/D pin of the MCU40, the MCU 40A/D converts the sampling voltage into a sampling value and then compares the sampling value with a preset value corresponding to the preset current, so as to adjust the effective pulse width of the PWM signal of the current control signal output by the MCU40, if the sampling value is smaller than the preset value, the pulse width of the PWM signal is increased, if the sampling value is larger than the preset value, the pulse width of the PWM signal is decreased, the PWM signal forms a stable direct current voltage through the filtering and voltage stabilization of the ninth capacitor R9 and the fifty-eighth resistor R58 and is input to the inverting input end of the second operational amplifier IC2, the stable direct current voltage is amplified through the comparison with the sampling voltage output from one end of the current sampling resistor RS1, and then passes through a negative feedback circuit consisting of the third resistor R3 and the eleventh capacitor C11, the second operational amplifier IC2 outputs a stable dc voltage to the non-inverting input terminal of an internal comparator of the pwm chip TL494, which is compared with the reference voltage to adjust the pulse width of its internal modulation signal, and the pulse width modulation signal output terminal of the pwm chip TL494 outputs the adjustment signal to the gate of the first PMOS transistor Q1 to control the switching state, and the output voltage is adjusted to supply the two electrodes of the electrolyzed water through the energy conversion of the first inductor L1 and the ninth electrolytic capacitor EC9 until the current in the power supply circuit reaches the preset current.
The utility model also provides a water electrolysis device, wherein the power supply circuit with adjustable current for electrolyzing water, which is mentioned in the embodiment, is arranged in the water electrolysis device. By arranging the power supply circuit, the electrolytic water device can control the working current of the electrolytic water electrode 60 to be stabilized at a preset current value, and particularly can work in a stable constant current state under a large-current environment so as to ensure that the concentration of the electrolytic water output by the device has high-efficiency sterilization and disinfection capability.
Further, the water electrolysis device further comprises a key module (not shown in the figure), the key module is configured to receive a concentration set value of the electrolyzed water, an output end of the key module is connected to the MCU40, the MCU40 adjusts a pulse width of the PWM signal output to the current adjusting module 10 according to the concentration set value of the electrolyzed water, so that the current adjusting module 10 controls the power control module 20 to output a corresponding voltage control signal to the voltage conversion module 30, and the voltage conversion module 30 adjusts a power supply voltage corresponding to the electrolyzed water electrode 60, and finally the power supply current to the electrolyzed water electrode 60 reaches a current value corresponding to the concentration set value of the electrolyzed water. Different electrolyzed water concentrations can be set by the user through the keys, and finally the electrolyzed water equipment controls the electrolyzed water electrode 60 to work in a corresponding power supply current environment so as to output the corresponding electrolyzed water concentration, thereby meeting the requirement of adjustable electrolyzed water concentration of the user and improving the user experience.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A current-adjustable power supply circuit for electrolyzing water is characterized by comprising a power supply control module, a voltage conversion module, a current sampling module, a current adjusting module and an MCU (microprogrammed control unit);
the voltage control signal output end of the power supply control module is connected with the voltage conversion module to control the voltage conversion module to work, and the input first voltage is reduced to a second voltage to supply power to an electrolytic water electrode;
the current sampling module is connected in series in a power supply loop of the voltage conversion module to an electrolytic water electrode, the output end of the current sampling module is connected with the MCU, and the current control signal output end of the MCU is connected with one input end of the current adjusting module;
the output end of the current regulating module is connected with the current feedback signal input end of the power supply control module;
the MCU outputs a corresponding PWM signal to the current regulation module according to the voltage signal value of the output end of the current sampling module, the current regulation module outputs a corresponding voltage signal to the current feedback signal input end of the power supply control module according to the PWM signal, and the power supply control module regulates the output voltage control signal to the voltage conversion module according to the voltage signal, so that the output current of the voltage conversion module is stabilized at a preset value.
2. The power supply circuit according to claim 1, further comprising a differential amplification module, wherein two input ends of the differential amplification module are connected to two ends of the output of the current sampling module, and an output end of the differential amplification module is connected to the MCU.
3. The power supply circuit according to claim 2, wherein the positive electrode of the output end of the voltage conversion module is connected with the first electrode of the electrolytic water electrode, the second electrode of the electrolytic water electrode is connected with one end of the current sampling module, and the other end of the current sampling module is grounded.
4. The power supply circuit according to claim 3, wherein two input terminals of the differential amplification module are connected to two connection terminals of the output of the current sampling module.
5. The power supply circuit according to claim 2, wherein the differential amplification module comprises a first operational amplifier, a tenth resistor, an eighty resistor, a sixteenth resistor, and a thirty-first resistor;
one end of the tenth resistor is an input end of the differential amplification module, the other end of the tenth resistor and one end of the eighty resistor are connected to the non-inverting input end of the first operational amplifier, one end of the sixteenth resistor is the other input end of the differential amplification module, the other end of the sixteenth resistor and one end of the sixty resistor are connected to the inverting input end of the first operational amplifier, the other end of the sixty resistor and one end of the thirty-first resistor are connected to the output end of the first operational amplifier, and the other end of the thirty-first resistor is the output end of the differential amplification module.
6. The power supply circuit of claim 3, wherein another input terminal of the current regulation module is connected to one terminal of the current sampling module.
7. The power supply circuit of claim 6, wherein the current regulation module comprises a second operational amplifier, a forty-fourth resistor, a fifty-eighth resistor, a second resistor, a third resistor, an eleventh capacitor, a ninth capacitor, and a third diode;
wherein one end of the forty-fourth resistor is an input end of the current regulation module, the other end of the forty-fourth resistor, one end of the fifty-eighth resistor, one end of the ninth capacitor and one end of the third resistor are commonly connected to the inverting input end of the second operational amplifier, the other end of the fifty-eighth resistor and the other end of the ninth capacitor are connected to ground in common, one end of the second resistor is the other input end of the current regulation module, the other end of the second resistor is connected with the non-inverting input end of the second operational amplifier, the other end of the third resistor is connected with one end of the eleventh capacitor, the other end of the eleventh capacitor and the output end of the second operational amplifier are connected to the anode of the third diode in common, and the cathode of the third diode is the output end of the current regulation module.
8. An apparatus for electrolyzing water, characterized in that it is provided with a current-regulated supply circuit for electrolyzing water as claimed in any of claims 1 to 7.
9. The water electrolysis device according to claim 8, further comprising a key module, wherein the key module is configured to receive a concentration setting value of the electrolyzed water, an output end of the key module is connected to the MCU, and the MCU adjusts a pulse width of the PWM signal output to the current adjustment module according to the concentration setting value of the electrolyzed water, so that the current adjustment module controls the power control module to output a corresponding voltage control signal to the voltage conversion module, so that the voltage conversion module adjusts a corresponding power supply voltage to the electrode of the electrolyzed water, and the power supply current to the electrode of the electrolyzed water reaches a current value corresponding to the concentration setting value of the electrolyzed water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123453915.2U CN216946337U (en) | 2021-12-31 | 2021-12-31 | Current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123453915.2U CN216946337U (en) | 2021-12-31 | 2021-12-31 | Current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment |
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| CN216946337U true CN216946337U (en) | 2022-07-12 |
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| CN202123453915.2U Active CN216946337U (en) | 2021-12-31 | 2021-12-31 | Current-adjustable power supply circuit for electrolyzing water and water electrolysis equipment |
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