CN2650362Y - Negative ion generating device with eliminating nigh frequency noise - Google Patents

Negative ion generating device with eliminating nigh frequency noise Download PDF

Info

Publication number
CN2650362Y
CN2650362Y CN 03209287 CN03209287U CN2650362Y CN 2650362 Y CN2650362 Y CN 2650362Y CN 03209287 CN03209287 CN 03209287 CN 03209287 U CN03209287 U CN 03209287U CN 2650362 Y CN2650362 Y CN 2650362Y
Authority
CN
China
Prior art keywords
circuit
oscillation circuit
electric capacity
transformer
eliminated
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.)
Expired - Fee Related
Application number
CN 03209287
Other languages
Chinese (zh)
Inventor
谢新茂
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.)
XIEXI MOTOR CO Ltd
Original Assignee
XIEXI MOTOR 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 XIEXI MOTOR CO Ltd filed Critical XIEXI MOTOR CO Ltd
Priority to CN 03209287 priority Critical patent/CN2650362Y/en
Application granted granted Critical
Publication of CN2650362Y publication Critical patent/CN2650362Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

A negative ion generating device with the function of eliminating the high frequency noise is provided, which comprises a power supply indicating circuit, an intermittent oscillation circuit, a voltage-doubling circuit and a high frequency eliminating circuit; the power supply indicating circuit, the intermittent oscillation circuit and the voltage-doubling circuit are used for forming a negative ion discharge, the high frequency eliminating circuit can utilize the actuating of a capacitor to restrict the high frequency by a coil, the high frequency is not be amplified by a transistor of the intermittent oscillation circuit, because the induction of the coil has the high impedance to the high frequency, the utility model can effectively eliminate the high frequency generated by the intermittent oscillation circuit.

Description

Tool is eliminated the negative ion generating device of high-frequency noise
Technical field
The utility model relates to a kind of negative ion generating device, and particularly a kind of tool is eliminated the negative ion generating device of high-frequency noise.
Background technology
A kind of known anionic generating circuit, announce the 4th as United States Patent (USP), 873, No. 083 [control just, the method and the circuit thereof of the air ion machine of anion balance] disclose, this anionic generating circuit includes electric capacity and a bypass resistance, this electric capacity is to be located between sparking electrode and the transformer, so that produce Dc bias between sparking electrode and the ground connection, this bypass resistance is in parallel with this electric capacity, to provide a grounding path to lead too high bias voltage, this bypass resistance is a variable resistor, and its resistance is determined by the value that this air ion machine measurement air ambient feeds back, so that required bias voltage to be provided, make generation just, the concentration balance of anion, but this transformer is in order to produce high voltage, when producing high voltage, can supervene high frequency, not disclosing in this patent case has the high frequency that how to prevent that this transformer from producing.
In addition, the Taiwan patent announcement anionic generating circuit that No. 287736 [anion generator] disclosed, it does not also disclose the generation that how to prevent high frequency.
Summary of the invention
Main purpose of the present utility model is to be to provide a kind of high frequency and the high frequency radiation that can eliminate harmful to human, and reduces the negative ion generating device that tool that high-frequency noise leaks is eliminated high-frequency noise.
Tool of the present utility model is eliminated the negative ion generating device of high-frequency noise and is realized by following technical scheme.
Scheme 1
A kind of tool is eliminated the negative ion generating device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF;
One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, this transformer is in order to produce high pressure, this high pressure is to produce resonance frequency through this oscillation circuit, this oscillation circuit has a transistor, this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, and this transistorized base stage and collector electrode are to electrically connect this transformer;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification through this intermittent oscillation circuit, and discharges to form anion through this sparking electrode; It is characterized in that being provided with:
One high frequency is eliminated circuit, and it is to have one the 4th electric capacity and one second coil, and the 4th electric capacity is to be connected with this second coils from parallel connection of coils, and this second coil is this transistorized emitter-base bandgap grading that is connected in series, and the 4th electric capacity is to electrically connect this transistorized base stage.
Described tool is eliminated the negative ion generating device of high-frequency noise, it is characterized in that: other includes a high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, and this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
Described tool is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
Scheme 2
A kind of tool is eliminated the negative ion generating device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF;
One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, the electric current of this power indicating circuit output is this intermittent oscillation circuit of input, this transformer is in order to produce high pressure, this high pressure is to produce resonance frequency through this oscillation circuit, this oscillation circuit has a transistor, and this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, and this transistorized base stage and collector electrode are to electrically connect this transformer;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification after this intermittent oscillation circuit boosts, and discharges to form anion through this sparking electrode; It is characterized in that being provided with:
One high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
Described tool is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
Scheme 3
A kind of tool is eliminated the negative ion generating device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF; One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, the electric current of this power indicating circuit output is this intermittent oscillation circuit of input, this transformer is in order to produce high pressure, this high pressure be through this shake " swing the loop and produce resonance frequency; this oscillation circuit has a transistor, and this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, this transistorized base stage and collector electrode are this transformers of electric connection;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification through this intermittent oscillation circuit, and discharges to form anion through this sparking electrode; It is characterized in that being provided with: a high frequency is eliminated circuit, it is to have one the 4th electric capacity and one second coil, the 4th electric capacity is to be connected with this second coils from parallel connection of coils, and this second coil is this transistorized emitter-base bandgap grading that is connected in series, and the 4th electric capacity is to electrically connect this transistorized base stage: and
One cover body, it is to surround second coil that this transformer, this transistor and this high frequency are eliminated circuit.
Described tool is eliminated the negative ion generating device of high-frequency noise, it is characterized in that: other includes a high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, and this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
Described tool is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
Described tool is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: the material of this cover body is a metal.
Tool of the present utility model is eliminated the negative ion generating device of high-frequency noise, it is to comprise a power indicating circuit, one intermittent oscillation circuit, an one multiplication of voltage loop and a high frequency are eliminated circuit, wherein this power indicating circuit is in order to the display power supply ON/OFF, this intermittent oscillation circuit is to have a transformer and an oscillation circuit, the electric current of this power indicating circuit output is this intermittent oscillation circuit of input, this transformer is in order to produce high pressure, this high pressure is to produce resonance frequency through this oscillation circuit, this oscillation circuit has a transistor, this transistor has a base stage, one collector electrode and an emitter-base bandgap grading, this transistorized base stage and collector electrode are to electrically connect this transformer, this multiplication of voltage loop is connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification through this intermittent oscillation circuit, and through this sparking electrode to form the anion discharge, it is to have one the 4th electric capacity and one second coil that this high frequency is eliminated circuit, the 4th electric capacity is to be connected with this second coils from parallel connection of coils, the 4th electric capacity is to electrically connect this transistorized base stage, this second coil is this transistorized emitter-base bandgap grading that is connected in series, the 4th electric capacity is led ground end with high frequency bypass, the inductance that this second coil produces presents high-impedance behavior for high frequency, high frequency can be exaggerated, effectively to reach the function of the high frequency of eliminating harmful to human that intermittent oscillation circuit is produced via the transistor of this intermittent oscillation circuit.
Advantage of the present utility model is:
1, an electric capacity that utilizes a high frequency to eliminate circuit is held high frequency bypass to ground, one coil this transistor that is connected in series, the inductance that this coil produces presents high-impedance behavior for high frequency, high frequency can be exaggerated, effectively to reach the high frequency of eliminating the harmful to human that intermittent oscillation circuit was produced via the transistor of this intermittent oscillation circuit.
2, utilize a π type high-frequency filter circuit with coil, first electric capacity and second electric capacity, make the high-frequency signals bypass lead ground end and stopped, and reduce the chance that high-frequency noise leaks by this coil.
3, utilize a cover body to eliminate the coil of circuit,, eliminate the high frequency radiation of this negative ion device to produce screen effect [shielding effectiveness] with the transformer, transistor and the high frequency that surround a tool and produce the anion circuit of high-frequency noise.
For structure of the present utility model, feature and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
Fig. 2 is the waveform schematic diagram of circuit of the present utility model, intermittent oscillation circuit.
Fig. 3 is a kind of schematic diagram of anion generator of carried type.
Embodiment
According to a specific embodiment of the present utility model, see also Fig. 1, the negative ion generating device that a kind of tool is eliminated high-frequency noise comprises a power indicating circuit 11, one intermittent oscillation circuit 13, an one multiplication of voltage loop 15 and a high frequency are eliminated circuit 16, preferably, this anion circuit includes a high-frequency filter circuit 12 in addition, wherein this power indicating circuit 11 is in order to the display power supply ON/OFF, this power indicating circuit 11 has a switch SW 1, one first resistance R 1 and a LED 1, when the state of switch SW 1 at path [ON], electric current is through this first resistance R 1, so that this LED 1 conducting and lighting, this electric current is also imported this high-frequency filter circuit 12, this high-frequency filter circuit 12 is pi-networks, it is to have one first coil L1, one first capacitor C 1 and one second capacitor C 2, and with this first capacitor C 1 and this second capacitor C, 2 ground connection, because of this first capacitor C 1 presents low-impedance phenomenon with 2 pairs of high frequencies of this second capacitor C, so when high frequency produces, high-frequency signals will be stopped by this first coil L1, and the chance that the minimizing high-frequency noise leaks and disturbs, when this electric current is conveyed into this intermittent oscillation circuit 13 again, this intermittent oscillation circuit 13 is to have a transformer T1 and an oscillation circuit 14, this transformer T1 has a primary coil N1, one positive feedback coil N2, a level coil N3, one the 5th capacitor C 5, in order to produce high pressure, this high pressure produces resonance frequency through this oscillation circuit 14, this oscillation circuit 14 has a transistor Q1, one second resistance R 2, one the 3rd resistance R 3 and one the 3rd capacitor C 3, this transistor Q1 has a base stage, one collector electrode and an emitter-base bandgap grading, the base stage of this transistor Q1 and collector electrode are to electrically connect this transformer T1, please consult Fig. 2 simultaneously, it is the waveform schematic diagram of this intermittent oscillation circuit 13, when the workflow of ON time t1, electric current input intermittent oscillation circuit 13, and through this positive feedback line chart N2, this second resistance R 2 and the 3rd capacitor C 3, make the base stage of this transistor Q1 change into the state of path [ON] by the OFF state, and ON time t1 is by this second resistance R 2 and 3 decisions of the 3rd capacitor C, electric current charges to the 3rd capacitor C 3 through this second resistance R 2, along with the 3rd capacitor C 3 is charged when saturated gradually, the base current of inflow transistor Q1 promptly can diminish gradually, the collection level electric current that causes transistor Q1 is also from diminishing greatly, enter the workflow of t2 deadline again, when the 3rd capacitor C 3 is charged when saturated gradually, the electric current of transistor Q1 from large to small promptly, this positive feedback coil N2 will respond to a back electromotive force and disengage negative voltage this moment, and then impel transistor Q1 to cut the cut-off state of open circuit [OFF] by path [ON] state, deadline, t2 was by the 3rd resistance R 3 and 3 decisions of the 3rd capacitor C, and the voltage that makes the 3rd capacitor C 3 flow to the 3rd resistance R 3 drops to zero potential, when the ratio [N3/N1] of the secondary coil N3 of transformer T1 and primary coil N1 greater than 1 the time, promptly control intermittent oscillation circuit 13 and reach the purpose of boosting, when voltage boosts once more, the electric current positive feedback coil N2 that can flow through, this second resistance R 2 and the 3rd capacitor C 3, and make transistor Q1 conducting once more, form an intermittent oscillation of going round and beginning again.
In the present embodiment, this multiplication of voltage loop 15 is to have one the 6th capacitor C 5, one the 7th capacitor C 7, one the 8th capacitor C 8 and one the 9th capacitor C 9,9 of the 6th capacitor C 6 to the 9th capacitor C are parallel with one first diode D1, one second diode D2, one the 3rd diode D3, one the 4th diode D4, this multiplication of voltage loop 15 also is connected with one the 4th resistance R 4 and at least one sparking electrode 17, this sparking electrode 17 is corresponding discharge sheets 18, this multiplication of voltage loop 15 is the electric currents that boost in order to this secondary coil of rectification N3, and through this sparking electrode 17 and discharge sheet 18 with to form the anion discharge, intermittent oscillation circuit 13 is when work, except producing fundamental frequency, also produce many high frequencies of not wanting, this high frequency frequency will cause radiation to leak, cause harmful effect, connect this high frequency in intermittent oscillation circuit 13 1 sides and eliminate circuit 16, it is to have one the 4th capacitor C 4 and one second coil L2 that this high frequency is eliminated circuit 16, the 4th capacitor C 4 is to be connected in parallel with this second coil L2, the 4th capacitor C 4 is the base stages that electrically connect this transistor Q1, this second coil L2 is the emitter-base bandgap grading of this transistor Q1 of being connected in series, the 4th capacitor C 4 is led ground end with high frequency, the inductance that this second coil L2 produces presents high-impedance behavior for high frequency, high frequency can be exaggerated, effectively to reach the function of the high frequency of eliminating intermittent oscillation circuit 13 harmful to human that produced via the transistor Q1 of this intermittent oscillation circuit 13.
A kind of device that utilizes tool of the present utility model to eliminate the negative ion generating device made of high-frequency noise, except comprising above-mentioned circuit design, to reach outside the high frequency of eliminating harmful to human, other includes a cover body 19, its material is metal such as iron, aluminium, copper and surrounds this transformer T1, this transistor Q1 and this high frequency is eliminated the second coil L2 of circuit 16, to produce screen effect [shielding effectiveness], eliminate the high frequency radiation of this negative ion device.And the negative ion generating device that above-mentioned tool is eliminated high-frequency noise is that the anion that can be installed in carried type as shown in Figure 3 produces machine 100 or other electronic product, to reach the effect that produces anion and eliminate high-frequency noise.
Protection range of the present utility model is as the criterion when looking the claim person of defining, and anyly knows this skill person, and any variation and the modification done in not breaking away from spirit and scope of the present utility model all belong to protection range of the present utility model.

Claims (9)

1, a kind of tool is eliminated the negative ion generating device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF;
One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, this transformer is in order to produce high pressure, this high pressure is to produce resonance frequency through this oscillation circuit, this oscillation circuit has a transistor, this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, and this transistorized base stage and collector electrode are to electrically connect this transformer;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification through this intermittent oscillation circuit, and discharges to form anion through this sparking electrode; It is characterized in that being provided with:
One high frequency is eliminated circuit, and it is to have one the 4th electric capacity and one second coil, and the 4th electric capacity is to be connected with this second coils from parallel connection of coils, and this second coil is this transistorized emitter-base bandgap grading that is connected in series, and the 4th electric capacity is to electrically connect this transistorized base stage.
2, tool according to claim 1 is eliminated the negative ion generating device of high-frequency noise, it is characterized in that: other includes a high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, and this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
3, tool according to claim 1 is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
4, a kind of tool is eliminated the negative ion generating device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF;
One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, the electric current of this power indicating circuit output is this intermittent oscillation circuit of input, this transformer is in order to produce high pressure, this high pressure is to produce resonance frequency through this oscillation circuit, this oscillation circuit has a transistor, and this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, and this transistorized base stage and collector electrode are to electrically connect this transformer;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification after this intermittent oscillation circuit boosts, and discharges to form anion through this sparking electrode; It is characterized in that being provided with:
One high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
5, tool according to claim 4 is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
6, a kind of tool is eliminated the negative ion device of high-frequency noise, comprises:
One power indicating circuit, it is in order to the display power supply ON/OFF;
One intermittent oscillation circuit, it is to have a transformer and an oscillation circuit, the electric current of this power indicating circuit output is this intermittent oscillation circuit of input, this transformer is in order to produce high pressure, this high pressure be through this shake " swing the loop and produce resonance frequency; this oscillation circuit has a transistor, and this transistor has a base stage, a collector electrode and an emitter-base bandgap grading, this transistorized base stage and collector electrode are this transformers of electric connection;
One multiplication of voltage loop, it is to be connected with at least one sparking electrode, this multiplication of voltage loop is in order to the electric current of rectification through this intermittent oscillation circuit, and discharges to form anion through this sparking electrode; It is characterized in that being provided with: a high frequency is eliminated circuit, it is to have one the 4th electric capacity and one second coil, the 4th electric capacity is to be connected with this second coils from parallel connection of coils, and this second coil is this transistorized emitter-base bandgap grading that is connected in series, and the 4th electric capacity is to electrically connect this transistorized base stage: and
One cover body, it is to surround second coil that this transformer, this transistor and this high frequency are eliminated circuit.
7, tool according to claim 6 is eliminated the negative ion generating device of high-frequency noise, it is characterized in that: other includes a high-frequency filter circuit, it is to have one first electric capacity, one second electric capacity and one first coil, and this high-frequency filter circuit is to be located between this power indicating circuit and this intermittent oscillation circuit.
8, tool according to claim 6 is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: this intermittent oscillation circuit has one the 3rd electric capacity, and it is to electrically connect this transistorized base stage and this transformer.
9, tool according to claim 6 is eliminated the negative ion generating device of high-frequency noise, and it is characterized in that: the material of this cover body is a metal.
CN 03209287 2003-09-10 2003-09-10 Negative ion generating device with eliminating nigh frequency noise Expired - Fee Related CN2650362Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03209287 CN2650362Y (en) 2003-09-10 2003-09-10 Negative ion generating device with eliminating nigh frequency noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03209287 CN2650362Y (en) 2003-09-10 2003-09-10 Negative ion generating device with eliminating nigh frequency noise

Publications (1)

Publication Number Publication Date
CN2650362Y true CN2650362Y (en) 2004-10-20

Family

ID=34325087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03209287 Expired - Fee Related CN2650362Y (en) 2003-09-10 2003-09-10 Negative ion generating device with eliminating nigh frequency noise

Country Status (1)

Country Link
CN (1) CN2650362Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606289B (en) * 2007-02-13 2012-10-10 冈野一雄 Testing method and testing device for corona discharge type ionizer
CN109377724A (en) * 2018-10-30 2019-02-22 出门问问信息科技有限公司 Immersion warning device and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101606289B (en) * 2007-02-13 2012-10-10 冈野一雄 Testing method and testing device for corona discharge type ionizer
CN109377724A (en) * 2018-10-30 2019-02-22 出门问问信息科技有限公司 Immersion warning device and its control method

Similar Documents

Publication Publication Date Title
CN208836102U (en) A kind of MOSFET driving circuit based on pulse transformer isolation
CN103856086A (en) Current transformer electricity taking control method and system
CN103179731A (en) Light-emitting diode (LED) driving circuit and LED lamp
CN203673805U (en) Backlight boost circuit and LED backlight drive circuit capable of reducing EMI radiation
CN1905310A (en) Low ripple high reliable high-capacity capacitance voltage stabilizing charging circuit
CN2650362Y (en) Negative ion generating device with eliminating nigh frequency noise
CN103001498A (en) Backlight-driven direct-current booster topology circuit
CN102611308A (en) High-linearity high-voltage direct-current power supply
CN111864713A (en) Overvoltage protection device for high pitch loudspeaker
CN201628685U (en) ICP auto-ignition device
CN202423827U (en) Low loss DC negative ion generator
US7206182B2 (en) Negative ions generating circuit design with decreasing high frequency noise and apparatus thereof
CN2540063Y (en) Integrated small power contravariant welding power supply
Lin Low power 60 kHz electrodeless fluorescent lamp for indoor use
CN209982713U (en) Bluetooth sound lamp circuit
CN215529385U (en) Novel lamp tube driving controller
CN218549742U (en) Interference suppression circuit and electrical equipment
CN212811565U (en) Direct current-to-direct current full-bridge driving positive and negative power supply circuit
CN212435360U (en) Overvoltage protection device for high pitch loudspeaker
CN220560612U (en) High-frequency pulse power supply of electric spark texturing system
CN2520598Y (en) DC negative ion generator
CN212648742U (en) Anion generator with multiple ion release ends
CN209001832U (en) The BOOST booster circuit of resisting radiation interference
CN202488842U (en) Virtual channel connection (VCC) control circuit for power factor correction (PFC) circuit of light emitting diode (LED) silicon controlled dimming power supply
CN2636460Y (en) Ion generator having conductive protection grid

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee