CN217306946U - Controllable ion generating circuit - Google Patents

Controllable ion generating circuit Download PDF

Info

Publication number
CN217306946U
CN217306946U CN202220327491.0U CN202220327491U CN217306946U CN 217306946 U CN217306946 U CN 217306946U CN 202220327491 U CN202220327491 U CN 202220327491U CN 217306946 U CN217306946 U CN 217306946U
Authority
CN
China
Prior art keywords
diode
capacitor
discharge unit
charge
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202220327491.0U
Other languages
Chinese (zh)
Inventor
朱明�
姚志祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Dongjing Electrical Appliance Co ltd
Original Assignee
Dongguan Dongjing Electrical Appliance Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Dongjing Electrical Appliance Co ltd filed Critical Dongguan Dongjing Electrical Appliance Co ltd
Priority to CN202220327491.0U priority Critical patent/CN217306946U/en
Application granted granted Critical
Publication of CN217306946U publication Critical patent/CN217306946U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

The utility model provides a controllable ion generating circuit relates to ion generating circuit technical field. The circuit includes: the device comprises a first input pole, a second input pole, a third input pole, a first rectifying charge-discharge unit, a second rectifying charge-discharge unit, a first boost charge-discharge unit, a second boost charge-discharge unit, a positive ion output pole and a negative ion output stage; the first input electrode is connected with the first rectifying charge-discharge unit, the first boosting charge-discharge unit and the positive ion output electrode in series; the second input electrode is respectively connected with the first rectifying charge-discharge unit and the second rectifying charge-discharge unit; the third input electrode is connected with the second rectifying charge-discharge unit, the second boosting charge-discharge unit and the negative ion output electrode in series; by controlling the first input pole to be connected with the second input pole, the positive ion output pole of the circuit emits positive ions; and the second input pole and the third input pole are controlled to be connected, and the negative ion output pole of the circuit emits negative ions so as to realize the function of independently emitting positive ions or negative ions.

Description

Controllable ion generating circuit
Technical Field
The utility model relates to an ion generation circuit technical field especially relates to a controllable ion generation circuit.
Background
In recent years, the quality of air is continuously deteriorated, how to purify air is the focus of general attention of people, and meanwhile, the air purifier enters the visual field of people. Among them, the positive and negative ion generators are popular among consumers due to their superior functions of sterilization, dust removal, smoke abatement, odor removal, etc.
With the improvement of living standard, positive and negative ions have become common articles for people. And a single positive and negative ion generator is far from satisfying the needs of users. At present, positive and negative ion generating circuits emit positive and negative ions at the same time, and the traditional positive and negative ion generating circuits cannot meet the requirements of users.
SUMMERY OF THE UTILITY MODEL
The utility model provides a controllable ion generating circuit aims at solving the problem that current positive negative ion generating circuit can not launch positive negative ion respectively alone.
In order to solve the above problem, an embodiment of the present invention provides a controllable ion generating circuit, including: the device comprises a first input pole, a second input pole, a third input pole, a first rectifying charge-discharge unit, a second rectifying charge-discharge unit, a first boost charge-discharge unit, a second boost charge-discharge unit, a positive ion output pole and a negative ion output stage; the first input electrode is connected with the first rectifying charge-discharge unit, the first boost charge-discharge unit and the positive ion output electrode in series; the second input electrode is respectively connected with the first rectifying charge-discharge unit and the second rectifying charge-discharge unit; the third input electrode is connected with the second rectifying charge-discharge unit, the second boosting charge-discharge unit and the negative ion output electrode in series; when the first input pole and the second input pole are controlled to be connected, the positive ion output pole of the circuit emits positive ions, and when the second input pole and the third input pole are controlled to be connected, the negative ion output pole of the circuit emits negative ions.
The first rectifying charge-discharge unit comprises a first diode, a first capacitor and a second diode, wherein the anode of the first diode is connected with the first input electrode, the first capacitor is respectively connected with the cathode of the first diode and the first boosting charge-discharge unit, the cathode of the second diode is connected with the cathode of the first diode, and the anode of the second diode is respectively connected with the first boosting charge-discharge unit and the second input electrode.
The first rectifying charge-discharge unit further comprises a first resistor, the first capacitor is connected with the cathode of the first diode through the first resistor, and the cathode of the second diode is connected between the first capacitor and the first resistor.
The first rectifying charge-discharge unit further comprises a second resistor, and the anode of the second diode is connected with the second input electrode through the second resistor.
The second rectifying charge-discharge unit comprises a third diode, a second capacitor and a fourth diode, wherein the anode of the third diode is connected with the third input electrode, the second capacitor is respectively connected with the cathode of the third diode and the second boost charge-discharge unit, the cathode of the fourth diode is connected with the cathode of the third diode, and the anode of the fourth diode is respectively connected with the second boost charge-discharge unit and the second input electrode.
The second rectifying charge-discharge unit further comprises a third resistor, and the anode of the fourth diode is connected with the second input electrode through the third resistor.
According to a further technical scheme, the second rectifying charge-discharge unit further comprises a fourth resistor, the second capacitor is connected with a cathode of the third diode through the fourth resistor, and a cathode of the fourth diode is connected between the second capacitor and the fourth resistor.
According to a further technical scheme, the first boost charge-discharge unit comprises a first transformer, a fifth resistor, a third capacitor and a fifth diode, a primary side of the first transformer is connected with anodes of the first capacitor and the second diode respectively, a secondary side of the first transformer is connected with an anode of the fifth diode and one end of the third capacitor respectively, the fifth resistor is connected with an anode of the second diode and one end of the third capacitor respectively, and the other end of the third capacitor and a cathode of the fifth diode are connected with the positive ion output electrode.
The second boost charging and discharging unit comprises a second transformer, a sixth resistor, a fourth capacitor and a sixth diode, the primary side of the second transformer is respectively connected with the second capacitor and the anode of the fourth diode, the secondary side of the second transformer is respectively connected with the cathode of the sixth diode and one end of the fourth capacitor, the sixth resistor is respectively connected with the anode of the fourth diode and one end of the fourth capacitor, and the other end of the fourth capacitor is connected with the anode of the sixth diode and the negative ion output electrode.
The controllable ion generating circuit further comprises a first current limiting unit and a second current limiting unit, wherein the positive ion output electrode is connected with the first boost charge-discharge unit through the first current limiting unit; and the negative ion output electrode is connected with the second boosting charge-discharge unit through the second current-limiting unit.
The utility model provides a controllable ion generating circuit, when this controllable ion generating circuit switch-on first input utmost point with during the second input is utmost point, the positive ion output of circuit launches positive ion, works as the switch-on the second input utmost point with during the third input is utmost point, the negative ion output of circuit launches negative ion, through the first input of control utmost point and the function of the switch-on of third input utmost point and turn-off in order to realize independent transmission positive ion or negative ion.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a circuit diagram of a controllable ion generating circuit according to an embodiment of the present invention.
Reference numerals
The charging device comprises a first rectifying charging and discharging unit 1, a second rectifying charging and discharging unit 2, a first boosting charging and discharging unit 3, a second boosting charging and discharging unit 4, a first current limiting unit 5 and a second current limiting unit 6.
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, in which like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Please refer to fig. 1, which is a schematic diagram illustrating a controllable ion generating circuit according to an embodiment of the present invention. The controllable ion generating circuit comprises: a first input pole AC1, a second input pole AC2, a third input pole AC3, a first rectifying charge-discharge unit 1, a second rectifying charge-discharge unit 2, a first boost charge-discharge unit 3, a second boost charge-discharge unit 4, a positive ion output pole HV + and a negative ion output pole HV-; the first input electrode AC1 is connected in series with the first rectifying charge-discharge unit 1, the first boost charge-discharge unit 3, and the positive ion output electrode HV +; the second input pole AC2 is connected to the first and second rectifying charge and discharge units 1 and 2, respectively; the third input electrode AC3 is connected in series with the second rectifying charge-discharge unit 2, the second boost charge-discharge unit 4, and the negative ion output electrode HV-; when the first input pole AC1 and the second input pole AC2 are controlled to be switched on, the positive ion output pole HV + of the circuit emits positive ions, and when the second input pole AC2 and the third input pole AC3 are controlled to be switched on, the negative ion output pole HV-of the circuit emits negative ions. Specifically, in an embodiment, when the first input pole AC1 is connected with AC power and the second input pole AC2 is grounded, current flows through the first rectifying charging and discharging unit 1 to perform rectifying charging and form a discharging loop, and the voltage of the discharging loop is boosted to a kilovolt level positive high voltage through the first boosting charging and discharging unit 3, and positive ions are emitted through the positive ion output pole HV +; similarly, when the second input pole AC2 is grounded and the third input pole AC3 is connected with AC power, the current flows through the second rectifying and charging unit 2 to be rectified and charged and form a discharging loop, and the voltage of the discharging loop is boosted to kilovolt negative high voltage after passing through the second boosting and charging unit 4 and then passes through the negative ion output pole HV-to emit negative ions. The circuit realizes the function of emitting positive ions or negative ions independently by controlling the first input pole AC1 and the third input pole AC3 to be switched on or off with the second input pole AC2 respectively.
It should be noted that, if the first input pole AC1 and the third input pole AC3 are connected to AC power at the same time, and the second input pole AC2 is grounded, the function of the conventional ion generating circuit, that is, the function of emitting positive and negative ions at the same time, can be realized.
Further, the first rectifying charge-discharge unit 1 includes a first diode D1, a first capacitor C1 and a second diode D2, an anode of the first diode D1 is connected to the first input terminal AC1, the first capacitor C1 is connected to the cathode of the first diode D1 and the first boost charge-discharge unit 3, a cathode of the second diode D2 is connected to the cathode of the first diode D1, and an anode of the second diode D2 is connected to the first boost charge-discharge unit 3 and the second input terminal AC 2. Specifically, in an embodiment, when the first input electrode AC1 is connected with an alternating current, and the second input electrode AC2 is grounded, the alternating current is half-wave rectified by the first diode D1 to charge the first capacitor C1, the first capacitor C1, after being charged, forms a discharge loop with the second diode D2, the first boost charge-discharge unit 3, and the second input electrode AC2, and a voltage in the discharge loop is boosted by the first boost charge-discharge unit 3 for positive ion emission.
Further, the first rectifying charge and discharge unit 1 further includes a first resistor R1, the first capacitor C1 is connected to the cathode of the first diode D1 through the first resistor R1, and the cathode of the second diode D2 is connected between the first capacitor C1 and the first resistor R1. Specifically, in one embodiment, the first resistor R1 connecting the cathode of the first diode D1 and the cathode of the second diode D2 is used for limiting the current rectified by the half-wave.
Further, the first rectifying charge and discharge unit 1 further includes a second resistor R2, and the anode of the second diode D2 is connected to the second input terminal AC2 through the second resistor R2. Specifically, in one embodiment, the second resistor R2 functions as a current limiting circuit in the discharging loop of the first capacitor C1 to prevent the circuit from being damaged by excessive current.
Further, the second rectifying charge and discharge unit 2 includes a third diode D3, a second capacitor C2, and a fourth diode D4, an anode of the third diode D3 is connected to the third input terminal AC3, the second capacitor C2 is connected to a cathode of the third diode D3 and the second boost charge and discharge unit 4, a cathode of the fourth diode D4 is connected to a cathode of the third diode D3, and an anode of the fourth diode D4 is connected to the second boost charge and discharge unit 4 and the second input terminal AC2, respectively. Specifically, in an embodiment, when the third input electrode AC3 is connected with an alternating current, and the second input electrode AC2 is grounded, the alternating current is half-wave rectified by the third diode D3 to charge the second capacitor C2, the second capacitor C2, after being charged, forms a discharge loop with the fourth diode D4, the second boost charge-discharge unit 4, and the second input electrode AC2, and a voltage in the discharge loop is boosted by the second boost charge-discharge unit 4 for negative ion emission.
Further, the second rectifying charge and discharge unit 2 further includes a third resistor R3, and the anode of the fourth diode D4 is connected to the second input terminal AC2 through the third resistor R3. Specifically, in an embodiment, the third resistor R3 functions as a current limiter in the discharge loop of the second capacitor C2 to prevent the circuit from being damaged by excessive current.
Further, the second rectifying charge and discharge unit 2 further includes a fourth resistor R4, the second capacitor C2 is connected to the cathode of the third diode D3 through the fourth resistor R4, and the cathode of the fourth diode D4 is connected between the second capacitor C2 and the fourth resistor R4. Specifically, in one embodiment, the fourth resistor R4 connecting the cathode of the third diode D3 and the cathode of the fourth diode D4 is used to limit the half-wave rectified current.
Further, the first boost charging and discharging unit 3 includes a first transformer T1, a fifth resistor R5, a third capacitor C3 and a fifth diode D5, a primary side of the first transformer T1 is connected to the first capacitor C1 and an anode of the second diode D2, a secondary side of the first transformer T1 is connected to the anode of the fifth diode D5 and one end of the third capacitor C3, the fifth resistor R5 is connected to the anode of the second diode D2 and one end of the third capacitor C3, and the other end of the third capacitor C3 and a cathode of the fifth diode D5 are connected to the positive ion output electrode HV +. Specifically, in an embodiment, the voltage on the primary side of the first transformer T1 is boosted by the secondary side of the first transformer T1 to form a kilovolt positive high voltage to charge the third capacitor C3, the third capacitor C3 forms a discharge loop with the second input electrode AC2, the second resistor R2, the third resistor R3, the fifth diode D5, and the positive ion output electrode HV +, and the current in the discharge loop is rectified by the fifth diode D5 to obtain the positive high voltage, which is output to the positive ion output electrode HV + to emit positive ions.
Further, the second boost charge/discharge unit 4 includes a second transformer T2, a sixth resistor R6, a fourth capacitor C4 and a sixth diode D6, the primary side of the second transformer T2 is connected to the second capacitor C2 and the anode of the fourth diode D4, the secondary side of the second transformer T2 is connected to the cathode of the sixth diode D6 and one end of the fourth capacitor C4, the sixth resistor R6 is connected to the anode of the fourth diode D4 and one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 and the anode of the sixth diode D6 are both connected to the negative ion output electrode HV-. Specifically, in an embodiment, the voltage on the primary side of the second transformer T2 is boosted by the secondary side of the second transformer T2 to form a kilovolt positive high voltage to charge the fourth capacitor C4, the fourth capacitor C4 forms a discharge loop with the second input electrode AC2, the third resistor R3, the sixth resistor R6, the sixth diode D6, and the negative ion output electrode HV ", and the current in the discharge loop is rectified by the sixth diode D6 to obtain a negative high voltage, which is output to the negative ion output electrode HV", so as to emit negative ions.
Furthermore, the controllable ion generating circuit further comprises a first current limiting unit 5 and a second current limiting unit 6, and the positive ion output electrode HV + is connected with the first boost charge and discharge unit 3 through the first current limiting unit 5; the negative ion output electrode HV-is connected with the second boost charge-discharge unit 4 through the second current limiting unit 6. Specifically, in one embodiment, the first current limiting unit 5 and the second current limiting unit 6 are respectively arranged before the positive ion output electrode HV + and the negative ion output electrode HV-to perform the function of limiting the current, so that the current in the circuit is reduced without changing the output voltage to prevent the circuit from being damaged by the excessive current.
In one embodiment, the first current limiting unit 5 is formed by connecting a seventh resistor R7 and an eighth resistor R8 in series, and the second current limiting unit 6 is formed by connecting a ninth resistor R9 and a tenth resistor R10 in series.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A controllable ion generating circuit, comprising:
the device comprises a first input pole, a second input pole, a third input pole, a first rectifying charge-discharge unit, a second rectifying charge-discharge unit, a first boost charge-discharge unit, a second boost charge-discharge unit, a positive ion output pole and a negative ion output stage;
the first input electrode is connected with the first rectifying charge-discharge unit, the first boost charge-discharge unit and the positive ion output electrode in series; the second input electrode is respectively connected with the first rectifying charge-discharge unit and the second rectifying charge-discharge unit; the third input electrode is connected with the second rectifying charge-discharge unit, the second boosting charge-discharge unit and the negative ion output electrode in series; when the first input pole and the second input pole are controlled to be connected, the positive ion output pole of the circuit emits positive ions, and when the second input pole and the third input pole are controlled to be connected, the negative ion output pole of the circuit emits negative ions.
2. The controllable ion generating circuit of claim 1, wherein said first rectifying charging and discharging unit comprises a first diode, a first capacitor and a second diode, wherein an anode of said first diode is connected to said first input terminal, said first capacitor is connected to a cathode of said first diode and said first boost charging and discharging unit, respectively, a cathode of said second diode is connected to a cathode of said first diode, and an anode of said second diode is connected to said first boost charging and discharging unit and said second input terminal, respectively.
3. The controllable ion generating circuit of claim 2, wherein said first rectifying charging and discharging unit further comprises a first resistor, said first capacitor is connected to a cathode of said first diode through said first resistor, and a cathode of said second diode is connected between said first capacitor and said first resistor.
4. The controllable ion generating circuit of claim 3, wherein said first rectifying charge-discharge unit further comprises a second resistor, and wherein an anode of said second diode is connected to said second input terminal through said second resistor.
5. The controllable ion generating circuit according to claim 1, wherein the second rectifying charging and discharging unit comprises a third diode, a second capacitor and a fourth diode, an anode of the third diode is connected to the third input electrode, the second capacitor is respectively connected to a cathode of the third diode and the second boost charging and discharging unit, a cathode of the fourth diode is connected to a cathode of the third diode, and an anode of the fourth diode is respectively connected to the second boost charging and discharging unit and the second input electrode.
6. The controllable ion generating circuit of claim 5, wherein said second rectifying charge-discharge unit further comprises a third resistor, and wherein an anode of said fourth diode is connected to said second input terminal via said third resistor.
7. The controllable ion generating circuit of claim 6, wherein said second rectifying charging and discharging unit further comprises a fourth resistor, said second capacitor is connected to a cathode of said third diode through said fourth resistor, and a cathode of said fourth diode is connected between said second capacitor and said fourth resistor.
8. The controllable ion generating circuit according to claim 2, wherein the first boost charging/discharging unit includes a first transformer, a fifth resistor, a third capacitor, and a fifth diode, a primary side of the first transformer is connected to anodes of the first capacitor and the second diode, a secondary side of the first transformer is connected to an anode of the fifth diode and one end of the third capacitor, the fifth resistor is connected to an anode of the second diode and one end of the third capacitor, and the other end of the third capacitor and a cathode of the fifth diode are connected to the positive ion output electrode.
9. The controllable ion generating circuit according to claim 5, wherein the second boost charging/discharging unit includes a second transformer, a sixth resistor, a fourth capacitor and a sixth diode, a primary side of the second transformer is connected to the second capacitor and an anode of the fourth diode, a secondary side of the second transformer is connected to a cathode of the sixth diode and one end of the fourth capacitor, the sixth resistor is connected to an anode of the fourth diode and one end of the fourth capacitor, and the other end of the fourth capacitor and an anode of the sixth diode are both connected to the negative ion output electrode.
10. The controllable ion generating circuit according to claim 1, further comprising a first current limiting unit and a second current limiting unit, wherein the positive ion output electrode is connected to the first boost charging and discharging unit through the first current limiting unit; and the negative ion output electrode is connected with the second boosting charge-discharge unit through the second current-limiting unit.
CN202220327491.0U 2022-02-18 2022-02-18 Controllable ion generating circuit Active CN217306946U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220327491.0U CN217306946U (en) 2022-02-18 2022-02-18 Controllable ion generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220327491.0U CN217306946U (en) 2022-02-18 2022-02-18 Controllable ion generating circuit

Publications (1)

Publication Number Publication Date
CN217306946U true CN217306946U (en) 2022-08-26

Family

ID=82929293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220327491.0U Active CN217306946U (en) 2022-02-18 2022-02-18 Controllable ion generating circuit

Country Status (1)

Country Link
CN (1) CN217306946U (en)

Similar Documents

Publication Publication Date Title
KR101481277B1 (en) On board charger for charging battery
CN104901385B (en) Generator energy managing device and electricity generation system
US9130472B2 (en) High efficient single switch single stage power factor correction power supply
EP2697898A2 (en) Circuit adapted to supply a voltage to an electronic device and uses thereof
Sabahi et al. A three-phase dimmable lighting system using a bidirectional power electronic transformer
US20050173615A1 (en) Dc-dc converter
US7848119B2 (en) Direct current to direct current converter
CN217306946U (en) Controllable ion generating circuit
KR101756458B1 (en) A/d converter for led lighting device
CN211702483U (en) Linear constant current control circuit and light source system
US4628427A (en) D.C. impulse arc welder employing thyristors
CN112769337B (en) Modulation type transformer isolation driving circuit independent of switching frequency
Lee et al. LED driver with TRIAC dimming control by variable switched capacitance for power regulation
US20070223260A1 (en) Power supply device with inrush current control circuit
CN212258511U (en) LLC circuit for large-power charger with wide output voltage range
CN109494841B (en) Main circuit structure of storage battery charging device
CN109861217B (en) Novel chip power supply circuit
KR102142630B1 (en) Driving circuit of voltage driven synchronous rectifier
CN218335404U (en) Power supply circuit, auxiliary power supply circuit and electronic equipment
CN212517041U (en) Switching circuit for ammeter
US20210378068A1 (en) Ac direct led driver including capacitor for led driver
CN217508618U (en) AC-DC converter with self-driven thyristor circuit
CN217470334U (en) Time-delay turn-off circuit
CN110601323B (en) Charging device and driving power supply generating circuit
CN219960397U (en) Power supply circuit and electronic product

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant