Ozone generating circuit with adjustable concentration

Abstract

The utility model discloses a concentration-adjustable ozone generating circuit, which comprises a control unit, a driving unit, a feedback unit and an ozone generator, the control unit is electrically connected with the ozone generator through the driving unit, and the ozone generator is electrically connected with the driving unit through the feedback unit; the driving unit comprises a first integrated circuit, the signal control end of the first integrated circuit is electrically connected with the signal output end of the control unit, in the ozone generation circuit with the adjustable concentration, the driving unit controls the ozone generation concentration of the ozone generator according to the feedback signal of the feedback unit, and the concentration adjusting function of the ozone generation circuit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, and particularly relates to an ozone generation circuit with adjustable concentration. Background Art

[0002] In the existing ozone generation circuit, according to the patent number: CN201621069466.8, the patent name: An ozone generation circuit for an ozone sterilization cabinet, which records that "it includes a double-pole double-throw switch DPDT connected between the live wire and the neutral wire, a push-button switch SB1, a normally open contact switch of a intermediate relay KA1, a push-button switch SB2, a contact switch of a time relay ST, a coil of the intermediate relay KA1, a green indicator light, a coil of the time relay ST, a coil of the intermediate relay KA2, a coil of the intermediate relay KA3, a contact switch of the intermediate relay KA1, a contact switch of the intermediate relay KA2, a contact switch of the intermediate relay KA3, a red indicator light, three groups of time relays, a contact switch of the intermediate relay KA4, an ozone generator, and an ultraviolet lamp". From this, it can be seen that this ozone generation circuit only controls the switch of the ozone generator through the on / off of the switch, but the concentration of ozone cannot be adjusted.

[0003] In summary, it is necessary to design an ozone generation circuit with adjustable concentration. Content of the Utility Model

[0004] In order to overcome the above deficiencies, the utility model provides an ozone generation circuit with adjustable concentration.

[0005] The utility model realizes the above object through the following technical solutions:

[0006] An ozone generation circuit with adjustable concentration includes a control unit, a driving unit, a feedback unit, and an ozone generator. The control unit is electrically connected to the ozone generator through the driving unit, and the ozone generator is electrically connected to the driving unit through the feedback unit; the driving unit includes a first integrated circuit, and the signal control end of the first integrated circuit is electrically connected to the signal output end of the control unit;

[0007] The feedback unit includes a constant current source part and a control part. The driving unit is electrically connected to the ozone generator through the constant current source part, and the control unit is electrically connected to the constant current source part through the control part.

[0008] Preferably, the control unit includes a second integrated circuit. One signal output end of the second integrated circuit is electrically connected to the feedback unit, and one signal output end of the second integrated circuit is electrically connected to the feedback unit. The second integrated circuit collects and outputs a driving signal to control the on / off of the field effect transistor, so as to adjust the output current of the feedback unit and realize the gear adjustment function.

[0009] Preferably, the driving unit further includes a third integrated circuit, a fourth integrated circuit and a transformer. The first integrated circuit is electrically connected to both ends of the input side of the transformer through the third integrated circuit and the fourth integrated circuit respectively. The output side of the transformer is electrically connected to the ozone generator. The first integrated circuit outputs two control signals to the third integrated circuit and the fourth integrated circuit, so as to control the output duty cycle of the transformer, adjust the output voltage, and further adjust the power of the ozone generator to adjust the ozone generation concentration.

[0010] The beneficial effect of the present invention is that in the ozone generation circuit with adjustable concentration, the driving unit controls the ozone generation concentration of the ozone generator according to the feedback signal of the feedback unit, realizing the function of adjustable concentration of the ozone generation circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be described by way of examples and with reference to the accompanying drawings, in which:

[0012] Figure 1 is the circuit schematic diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic way, so they only show the components related to the present invention.

[0014] As Figure 1 shown, an ozone generation circuit with adjustable concentration includes a control unit, a driving unit, a feedback unit and an ozone generator. The control unit is electrically connected to the ozone generator through the driving unit, and the ozone generator is electrically connected to the driving unit through the feedback unit; the driving unit includes a first integrated circuit, and the signal control end of the first integrated circuit is electrically connected to the signal output end of the control unit;

[0015] The feedback unit includes a constant current source part and a control part. The driving unit is electrically connected to the ozone generator through the constant current source part, and the control unit is electrically connected to the constant current source part through the control part. The driving unit includes a first integrated circuit U1, and the model of the first integrated circuit U1 is DF6109A. The eighth terminal of the first integrated circuit U1 is electrically connected to the signal output terminal of the control unit; the feedback unit includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a thirteenth capacitor C13, a sixteenth capacitor C16, a switching diode Q2 and a field effect transistor Q3. The model of the switching diode Q2 is BAV99. One end of the switching diode Q2 is grounded, and the other end of the switching diode Q2 is electrically connected to the tenth terminal of the first integrated circuit U1 through a series circuit composed of the sixth resistor R6 and the first resistor R1, and this end of the switching diode Q2 is grounded through a parallel circuit composed of the eighth resistor R8 and the sixteenth capacitor C16. The input terminal of the switching diode Q2 is electrically connected to one end of the ozone generator, and the other end of the ozone generator is electrically connected to the driving unit. One end of the series circuit composed of the eleventh resistor R11 and the thirteenth capacitor C13 is electrically connected to the sixth resistor R6 and the seventh resistor R7 respectively, and the other end of the series circuit composed of the eleventh resistor R11 and the thirteenth capacitor C13 is grounded. The source electrode of the field effect transistor Q3 is electrically connected to the eleventh resistor R11 and the thirteenth capacitor C13 respectively through the thirteenth resistor R13. The source electrode of the field effect transistor Q3 is grounded through the thirteenth resistor R13 and the eleventh resistor R11. The drain electrode of the field effect transistor Q3 is externally connected to a 5V DC voltage power supply, the gate electrode of the field effect transistor Q3 is externally connected to a 5V DC voltage power supply through the fifteenth resistor R15, and the gate electrode of the field effect transistor Q3 is electrically connected to the signal output terminal of the control unit through the fourteenth resistor R14. Among them, the switching diode Q2, the sixth resistor R6, the seventh resistor R7 and the switching circuit mainly composed of the field effect transistor Q3 constitute the feedback unit, and this feedback unit is a constant current source circuit. When the first integrated circuit U1 controls the field effect transistor Q3 to turn off, that is, when the first integrated circuit U1 outputs a low level, the power of the ozone generator is the largest; when the output terminal of the first integrated circuit U1 outputs a high level, the field effect transistor Q3 turns on. After voltage division by the twelfth resistor R12 and the thirteenth resistor R13, since the output current of this feedback adjustment circuit and the feedback current at the switching diode Q2 are added to maintain a constant current, the current at the feedback terminal of the first integrated circuit U1 becomes larger at this time, and the output current will be adjusted, thereby reducing the output power of the ozone generator and reducing the ozone generation concentration.

[0016] As a specific embodiment, the driving unit further includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a ninth resistor R9, a tenth resistor R10, a first diode D1, a second diode D2, a third diode D3, a third integrated circuit U3, a fourth integrated circuit U4, a triode Q1, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a fourteenth capacitor C14, a fifteenth capacitor C15, an inductor L1, and a transformer T1. The models of the third integrated circuit U3 and the fourth integrated circuit U4 are AO4606. The first terminal of the first integrated circuit U1 is electrically connected to the G1 terminal of the third integrated circuit U3 through the twelfth capacitor C12. The S2 terminal of the third integrated circuit U3 is grounded. The G2 terminal of the third integrated circuit U3 is electrically connected to the third terminal of the first integrated circuit U1. The S1 terminal of the third integrated circuit U3 is electrically connected to the second capacitor C2 through an antiparallel circuit composed of the first diode D1 and the fourth resistor R4. The second terminal of the first integrated circuit U1 is grounded through the sixth capacitor C6. The second terminal of the first integrated circuit U1 is externally connected to a 5V DC voltage power supply through the inductor L1. The second terminal of the first integrated circuit U1 is grounded through a parallel circuit composed of the ninth capacitor C9 and the seventh capacitor C7. The fourth terminal of the first integrated circuit U1 is grounded through the fifth capacitor C5. The fifth terminal of the first integrated circuit U1 is grounded through the fourth capacitor C4. The fifth terminal of the first integrated circuit U1 is electrically connected to the fourth terminal of the first integrated circuit U1 through the third resistor R3. The sixth terminal of the first integrated circuit U1 is electrically connected to the fourth terminal of the first integrated circuit U1. The seventh terminal of the first integrated circuit U1 is grounded. The eighth terminal of the first integrated circuit U1 is electrically connected to the signal output terminal of the second integrated circuit U2 through the first resistor R1. One end of the first resistor R1 is grounded through the third capacitor C3. The other end of the first resistor R1 is grounded through the second resistor R2. Both ends of the tenth capacitor C10 are respectively electrically connected to the tenth terminal and the ninth terminal of the first integrated circuit U1. The ninth terminal of the first integrated circuit U1 is grounded through the eleventh capacitor C11. The eleventh and twelfth terminals of the first integrated circuit U1 are both grounded. The thirteenth terminal of the first integrated circuit U1 is grounded through the ninth capacitor C9. The fifteenth terminal of the first integrated circuit U1 is grounded. The sixteenth terminal of the first integrated circuit U1 is electrically connected to the G2 terminal of the fourth integrated circuit U4. The S2 terminal of the fourth integrated circuit U4 is grounded. The S1 terminal of the fourth integrated circuit U4 is electrically connected to the twelfth capacitor C12 through an antiparallel circuit composed of the second diode D2 and the fifth resistor R5. The fourteenth terminal of the first integrated circuit U1 is electrically connected to the G1 terminal of the fourth integrated circuit U4 through the twelfth capacitor C12. The transformer T1 is provided with two sets of output coils. One end of the input coil of the transformer T1 is electrically connected to the output terminal of the third integrated circuit U3.The other end of the input coil of transformer T1 is electrically connected to the output end of the fourth integrated circuit U4. One end of one of the coils of transformer T1 is grounded. The other end of one of the coils of transformer T1 is electrically connected to the anode of the third diode D3 through the ninth resistor R9. The cathode of the third diode D3 is grounded through the fifteenth capacitor C15. The cathode of the third diode D3 is electrically connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is externally connected to a 5V DC voltage power supply through the tenth resistor R10. One end of another output coil of transformer T1 is grounded. The other end of another output coil of transformer T1 is electrically connected to the ozone generator and is grounded through the fourteenth capacitor C14. The first integrated circuit U1 outputs two control signals to the third integrated circuit U3 and the fourth integrated circuit U4, so as to control the output duty cycle of transformer T1, adjust the output voltage, and further adjust the power of the ozone generator to adjust the ozone generation concentration.

[0017] As a specific embodiment, the driving unit further includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a ninth resistor R9, a tenth resistor R10, a first diode D1, a second diode D2, a third diode D3, a third integrated circuit U3, a fourth integrated circuit U4, a triode Q1, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a fourteenth capacitor C14, a fifteenth capacitor C15, an inductor L1, and a transformer T1. The models of the third integrated circuit U3 and the fourth integrated circuit U4 are AO4606. The first end of the first integrated circuit U1 is electrically connected to the G1 end of the third integrated circuit U3 through the twelfth capacitor C12. The S2 end of the third integrated circuit U3 is grounded. The G2 end of the third integrated circuit U3 is electrically connected to the third end of the first integrated circuit U1. The S1 end of the third integrated circuit U3 is electrically connected to the second capacitor C2 through an antiparallel circuit composed of the first diode D1 and the fourth resistor R4. The second end of the first integrated circuit U1 is grounded through the sixth capacitor C6. The second end of the first integrated circuit U1 is externally connected to a 5V DC voltage power supply through the inductor L1. The second end of the first integrated circuit U1 is grounded through a parallel circuit composed of the ninth capacitor C9 and the seventh capacitor C7. The fourth end of the first integrated circuit U1 is grounded through the fifth capacitor C5. The fifth end of the first integrated circuit U1 is grounded through the fourth capacitor C4. The fifth end of the first integrated circuit U1 is electrically connected to the fourth end of the first integrated circuit U1 through the third resistor R3. The sixth end of the first integrated circuit U1 is electrically connected to the fourth end of the first integrated circuit U1. The seventh end of the first integrated circuit U1 is grounded. The eighth end of the first integrated circuit U1 is electrically connected to the signal output end of the second integrated circuit U2 through the first resistor R1. One end of the first resistor R1 is grounded through the third capacitor C3. The other end of the first resistor R1 is grounded through the second resistor R2. Both ends of the tenth capacitor C10 are respectively electrically connected to the tenth end and the ninth end of the first integrated circuit U1. The ninth end of the first integrated circuit U1 is grounded through the eleventh capacitor C11. The eleventh and twelfth ends of the first integrated circuit U1 are both grounded. The thirteenth end of the first integrated circuit U1 is grounded through the ninth capacitor C9. The fifteenth end of the first integrated circuit U1 is grounded. The sixteenth end of the first integrated circuit U1 is electrically connected to the G2 end of the fourth integrated circuit U4. The S2 end of the fourth integrated circuit U4 is grounded. The S1 end of the fourth integrated circuit U4 is electrically connected to the twelfth capacitor C12 through an antiparallel circuit composed of the second diode D2 and the fifth resistor R5. The fourteenth end of the first integrated circuit U1 is electrically connected to the G1 end of the fourth integrated circuit U4 through the twelfth capacitor C12. The transformer T1 is provided with two sets of output coils. One end of the input coil of the transformer T1 is electrically connected to the output end of the third integrated circuit U3.The other end of the input coil of transformer T1 is electrically connected to the output end of the fourth integrated circuit U4. One end of one of the coils of transformer T1 is grounded. The other end of one of the coils of transformer T1 is electrically connected to the anode of the third diode D3 through the ninth resistor R9. The cathode of the third diode D3 is grounded through the fifteenth capacitor C15. The cathode of the third diode D3 is electrically connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is externally connected to a 5V DC voltage power supply through the tenth resistor R10. One end of another output coil of transformer T1 is grounded. The other end of another output coil of transformer T1 is electrically connected to the ozone generator and is grounded through the fourteenth capacitor C14. The first integrated circuit U1 outputs two control signals to the third integrated circuit U3 and the fourth integrated circuit U4, so as to control the output duty cycle of transformer T1, adjust the output voltage, and further adjust the power of the ozone generator to adjust the ozone generation concentration.

[0018] Inspired by the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An ozone generation circuit with adjustable concentration, characterized in that: It includes a control unit, a drive unit, a feedback unit and an ozone generator. The control unit is electrically connected to the ozone generator through the drive unit, and the ozone generator is electrically connected to the drive unit through the feedback unit; the drive unit includes a first integrated circuit, and the signal control end of the first integrated circuit is electrically connected to the signal output end of the control unit; The feedback unit includes a constant current source part and a control part. The drive unit is electrically connected to the ozone generator through the constant current source part, and the control unit is electrically connected to the constant current source part through the control part.

2. The ozone generation circuit with adjustable concentration according to claim 1, wherein: The control unit includes a second integrated circuit, and one signal output end of the second integrated circuit is electrically connected to the feedback unit.

3. The ozone generation circuit with adjustable concentration according to claim 1, characterized in that: The drive unit further includes a third integrated circuit, a fourth integrated circuit and a transformer. The first integrated circuit is electrically connected to both ends of the input side of the transformer through the third integrated circuit and the fourth integrated circuit respectively, and the output side of the transformer is electrically connected to the ozone generator.

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