baber/WOPTO huggingface dataset:
Patent KR-20010090345-A (KR)
Title: drink can having hygiene cover
Inventor: OH JUNG DON
IPC: B65D17/50
Filed: 2000-03-24
Abstract: PURPOSE: A drink can having a cover is provided to remove unsanitary elements generated in carrying the drink can. CONSTITUTION: A sanitary cover(100) is installed along a frame(13) of a can(11) having a cover(12). The sanitary cover is composed by paper, vinyl, or plastic and is installed on the frame by attaching or combining. The sanitary cover covers on a portion contacting to a mouth of a user. Moreover, the sanitary cover is conveniently removed form the drink can. Thereby, the drink can having the sanitary cover removes the unsanitary elements generated in carrying the drink can. The drink can is delivered in being exposed outside. Thus, the drink can is contacted to the foreign materials and then, is carried into the user. The user cleans a surface of the drink can to drink. The drink can having the sanitary cover is used without cleaning the drink by removing the unsanitary elements.
Patent KR-20000030900-A (KR)
Inventor: LEE DUK SANG
IPC: C02F11/04
Filed: 2000-03-27
Abstract: PURPOSE: A method for collecting and refining methane gas from sanitary landfill is provided, which is characterized in that pipe is installed for collecting landfill gas so that collected landfill gas is reused as an alternative energy source. CONSTITUTION: Most of the urban solid waste is treated by landfill, and the landfill gas which is generated from this waste contains 50-60% of highly concentrated methane. Generating velocity of methane is concerned with growth rate of microorganism which generates methane in anaerobic condition and activity of the microorganism. The landfill method is identified(s100), and modeling formulas are applied based on the data of the landfill method. A sealing condition and pressure of a fan is calculated to design the plant. A number of pipe for collecting gas and power of the fan is determined by amount, velocity and component of gas.
Patent KR-20010094349-A (KR)
Title: Equipment for cleansing of wafer and method for cleansing of wafer
Inventor: SUNG GI CHEON
IPC: H01L21/304
Filed: 2000-03-30
Abstract: PURPOSE: An apparatus and a method for cleaning a wafer are provided to improve cleaning capacity and etching uniformity by performing a cleaning process, a rinsing process, and a dry process within one bath. CONSTITUTION: A single chamber(100) performs all processes such as a cleaning process, a rinsing process, and a dry process. A wafer(101) is installed in the chamber(100). A chemical and DI(DeIonized) supply line(102a) supplies chemicals or DI to the chamber(100). A chemical and DI exhaust line(103a) exhausts the chemicals or DI. A chemical injection module(104) decides a mixing ratio of the injected chemicals. An IPA(IsoPropyl Alcohol) supply module(105) injects heated IPA to the chamber(100) in order to dry the wafer(101) after the cleaning process is completed. An IPA supply line(103a) supplies the IPA from the IPA supply module(105) to the chamber(100). An IPA exhaust portion(102b) exhausts the IPA after the dry process is completed.
Patent KR-20010095885-A (KR)
Title: Broadcasting real-time on demand download system of music file
Inventor: KIM HYEONG NYEON
IPC: G06F15/16
Filed: 2000-04-12
Abstract: PURPOSE: A system for an advertisement real time on demand download of a music file is provided to download all sorts of music files in accordance with a user's selection by embodying inherent numbers(M-code) in all music and displaying the corresponding M-code of the current operated music on a screen. CONSTITUTION: In a system for downloading a wanted music in broadcasting real time, a communication network(202) capable of communicating data by wire/wireless is provided. The first service providing server(200) stores each M-code embodied in all music as inherent codes and the corresponding music file. A TV(204) displays a M-code of the currently broadcasted music on a screen. The first terminal(206) connects to the first service providing server(200) through the communication network(202) and is provided for inputting a M-code and a telephone number of a music to be downloaded. The second service providing server(208) receives a music file from the first service providing server(200) through the communication network(202) in broadcasting real time and calls the second terminal to be received a download. The second terminal(210) is provided for downloading a music file from the second service providing server(208).
Patent KR-20010020776-A (KR)
Inventor: TOMIYOSHI KAZUTOSHI
IPC: H01L23/29
Filed: 2000-04-25
Abstract: PURPOSE: A semiconductor encapsulating epoxy resin composition is provided to improve a moldability and a solder crack resistance while exhibiting high flame retardance despite the absence of halogenated epoxy resins and antimony oxide. CONSTITUTION: A semiconductor encapsulating epoxy resin composition comprises an epoxy resin, a phenolic resin curing agent, a molybdenum compound, an organopolysiloxane, an organopolysiloxane cured product, or a block copolymer obtained by reacting an epoxy resin or alkenyl group-bearing epoxy resin with an organohydrogenpolysiloxane, and an inorganic filler.
Patent KR-20010098178-A (KR)
Inventor: CHOI GEUN YEONG
IPC: F23D14/10
Filed: 2000-04-28
Abstract: 본 발명은 버너용 파이프를 순차이송 프레스금형으로 상ㆍ하판을 동시에 프레싱하여 이를 일체로 결합함으로서, 제조공정을 단순화하고 이에 따라 생산성의 향상뿐만 아니라 품질 향상을 도모하고자 하는 가스기기의 버너용 파이프 및 그 제조방법에 관한 것으로, 다수개의 염공이 천공되고 공기와 연료가스가 유동되는 유로가 반원형상으로 형성된 상판과, 상기 상판과 대응되는 반원형의 유로가 형성된 하판과, 상기 상판과 하판이 일체로 결합하여 구성된 것을 특징으로 하는 것이다.또한, 상ㆍ하판을 동시에 프레싱하도록 피딩기에서 공급된 스트립에 파이로트 구멍을 천공하는 제 1공정과, 드로잉시 변형을 방지하도록 비딩함과 동시에 상판 및 하판을 드로잉 하는 제 2공정과, 상ㆍ하판 외측브리지의 일측을 각각 노칭함과 동시에 상판에 다수의 염공을 피어싱하는 제 3공정과, 이송브리지에 노칭함과 동시에 스트립에서 하판을 절취하는 제 4공정과, 스트립에서 상판을 절취하는 제 5공정과, 상기 공정에서 절취된 하판 및 상판을 일체로 압착하는 제 6공정으로 이루어진 것을 특징으로 하는 것이다.
Patent KR-20010014882-A (KR)
Inventor: YAMADA SATOSHI
IPC: H01L23/48
Filed: 2000-05-09
Abstract: PURPOSE: To make the pitches of the inner connection terminals of semiconductor chips fine, in a semiconductor device incorporating the semiconductor chips connected through method of flip-chip bonding(FCB). CONSTITUTION: A thermosetting insulating resin sheet 24 is formed, so that a bonding pad that an insulating board 12 has is covered. A lower chip 16 is set so that connection bumps 32 connected to the inner connection terminal of the lower chip 16 breaking the insulating resin sheet 24, so that they are brought into contact with the bonding pad. The insulating resin sheet is thermoset, and the connection bumps 32 are melted.
Patent KR-20010109378-A (KR)
Inventor: SONG DEOK RYONG
Filed: 2000-05-30
Abstract: 본 발명은 공간 활용을 극대화 할 수 있도록 복수개의 모터 제어 센터 유니트를 수평 및 수직 방향으로 수납가능하게 구성한 모터 제어 센터에 관한 것으로서, 본 발명은 소형 모터 제어 센터 유니트와; 모터 제어 센터 유니트의 소형화에 따라 복수개의 모터 제어 센터 유니트를 수평방향으로 수납할수 있는 수직방향으로 복수개 형성된 유니트 수납공간을 갖는 모터 제어 센터 케이스와; 유니트 수납공간에 제공된 주회로 모선에서 수평방향으로 설치된 복수개의 모터 제어 센터 유니트로 전원을 분기시키는 어댑터를 구비한 모터 제어 센터를 제공함으로서 달성된다.
Patent KR-20010108734-A (KR)
Inventor: CHOI CHANG JIN
Filed: 2000-05-31
Abstract: 본 발명은 지리정보시스템(GIS)를 이용하여 각종 정보를 제공하는 방법에 관한 것으로서, 인터넷을 기반으로 하는 웹(Web) 상에서 구현되는 GIS에 정보를 입력하고 정보가 입력되어 웹상에 연동되어 구현되는 GIS를 이용하여 입력된 각종 정보를 이용할 수 있도록 하는 방법에 관한 것으로서, 인터넷 웹상에서 연동되는 GIS를 이용하여 별도의 위치 정보를 입력할 필요 없이 웹상에 구현되어 있는 지도상의 하나 또는 다수의 위치에 마우스 포인트를 위치 시킨 후에 선택(Click)하여 위치정보를 입력하거나, 마우스 포인트가 위치한 곳에 제공하려는 정보를 입력하도록 하고, 입력된 정보를 사용자가 이용하기 위해서는 웹 상에 띄워져 있는 지도상에 일정한 형식으로 표시되는 위치를 선택하게 되면 자세한 정보를 열람할 수 있도록 하며, 웹 상에서 연동되는 GIS에 의하여 정확한 위치를 파악할 수 있도록 하고, 사용자와 정보제공자가 온라인 또는 오프라인에서 양방향으로 정보를 교환 또는 획득할 수 있도록 하는 방법을 제공하며, 또한 찾고자 하는 정보를 예약할 수 있도록 하고, 위치에 대한 정보를 GPS와 연동될 수 있도록 하며 또한 이동인터넷(Mobile Internet)을 이용하여 정보를 제공 또는 획득할 수 있도록 하는데 그 특징이 있다.
Patent KR-20000054380-A (KR)
Inventor: CHO BYUNG OK
IPC: F25B41/00
Filed: 2000-06-02
Abstract: PURPOSE: An electronically controlled coolant spraying type expansion device is provided to elevate a freezing efficiency by facilitating the heat exchange in an evaporator by coolant spraying while controlling electronically in a freezer. CONSTITUTION: Functions of pressure falling and control of coolant flux in an expansion device of a freezer are ensured by spraying a coolant by an injector generating fine corpuscles of 50-60 micrometers of diameter. Herein, the evaporation rate of the sprayed coolant drops is improved. Thereby, a freezing effect is elevated. The sort of injectors for spraying a coolant is selected corresponding to the capacity of the freezer and the structure of a system.
Patent KR-20010111959-A (KR)
Inventor: KIM JIN GON
Filed: 2000-06-14
Abstract: 본 발명은 축과 회전자의 결합구조를 개선하여 모터의 구동시 축이 반부하측으로 밀리는 것을 방지한 브러쉬리스 모터에 관한 것이다. 상기 모터는, 전ㆍ후면이 개방된 케이스와, 상기 케이스의 개방된 전ㆍ후면에 각각 결합된 전ㆍ후방브라켓과, 상기 전ㆍ후방브라켓에 각각 지지된 전ㆍ후방베어링과, 상기 전ㆍ후방베어링에 지지된 축과, 상기 전ㆍ후방베어링 사이의 상기 축 부위에 결합된 회전자와, 상기 회전자와 대향되게 상기 회전자의 반경방향측 외측에 마련된 고정자를 구비하는 브러쉬리스 모터에 있어서, 상기 축의 일단부측은 상기 전방브라켓을 통과하여 상기 케이스의 외측에 위치되고, 타단부측은 상기 후방베어링과 후방브라켓 사이에 위치되며, 상기 축이 관통하는 회전자의 부위에는 상기 전ㆍ후방베어링측으로 각각 연장된 전ㆍ후방연장부가 형성되고, 상기 축의 타단부에서 후방브라켓까지의 거리는 상기 후방연장부에서 후방베어링 까지의 거리보다 더 길다. 상기 모터는, 축의 단부가 후방브라켓과 접촉되지 않도록 설치되고, 전ㆍ후방베어링 사이의 축에 결합된 회전자가 소정 거리 유동가능하게 설치된다. 그리고, 축의 단부에서 후방브라켓까지의 거리를 회전자의 유동거리보다 길게 마련하므로, 축과 후방브라켓이 전혀 접촉되지 않는다. 그러므로, 축과 후방브라켓과의 마찰로 인한 마찰소음이 발생되지 않는다.
Patent KR-20020002148-A (KR)
Title: Evaporator Pipe Of Kimchi Storage
Inventor: PARK IN GYU
IPC: A23B7/10
Filed: 2000-06-29
Abstract: PURPOSE: An evaporator pipe of a Kimchi storehouse having a quadrilateral cross section to allow a contact of a storage container and an evaporation pipe for surrounding outer surface thereof to have surface contact is provided, which has an effect on transferring cooling heat more quickly toward a storage container during operation of the Kimchi storehouse. CONSTITUTION: The Kimchi storehouse(100) comprises: a storage container(105) formed by a receiving part(105a) to age and store foods in a chilled state; and a cooling system containing a compressor, a condenser, an evaporator and an expansion valve at the lower part of the storage container to transfer cooling heat from a machine room containing the cooling system toward the storage container, wherein an evaporation pipe(120) is winded up under compression on the outer surface of the storage container to correspond to a cross sectional shape thereof, and one part to be contacted with a corner part is allowed to have a round cross section and the other part to have a quadrilateral cross section.
Patent KR-20020002640-A (KR)
Title: A method for a field oxide of semiconductor device
Inventor: LEE SEOK JU
IPC: H01L21/76
Filed: 2000-06-30
Abstract: PURPOSE: A method for forming an isolation layer of a semiconductor device is provided to form the isolation layer without damage to the device, by forming an oxide layer only on the sidewall of a trench and by performing a selective epitaxial growth(SEG) process. CONSTITUTION: A pad oxide layer and a pad nitride layer are stacked on a semiconductor substrate(1). A predetermined thickness of the pad nitride layer, the pad oxide layer and the semiconductor substrate is etched to from the trench. An oxide layer(5) is formed on the entire surface including the surface of the trench by a predetermined thickness. The oxide layer is blank-etched to form an oxide layer spacer on the sidewall of the trench. The pad oxide layer and the pad nitride layer are eliminated. A SEG silicon layer(6) is formed on the semiconductor substrate in the lower portion of the trench.
Patent KR-20000059084-A (KR)
Inventor: BAEK SO YEONG
IPC: G06Q50/22
Filed: 2000-07-13
Abstract: PURPOSE: A method and a system for transmitting prescriptions using a communication network are provided to effectively check errors in prescribed contents by using prescriptions checking server constructed and to facilitating receipt of prepared medicines. CONSTITUTION: In a method for transmitting prescriptions through a communication network connecting at least one hospital terminal(104) to at least one pharmacy terminal(106) and a prescription managing server(100), prescription information including patient information, prescribed contents and a designated pharmacy are received from the hospital terminal. Then, it is confirmed if the designated pharmacy can provide the medicine of the prescription, and information useful to prescription is transmitted to the terminal of the designated pharmacy. Subsequently, information containing contents of prepared medicine and whether the patient has received the medicine is received.
Patent KR-20020008634-A (KR)
Title: structure of air discharger in air conditioner
Inventor: AHN CHEOL O
IPC: F24F13/08
Filed: 2000-07-24
Abstract: PURPOSE: An air discharge port structure of an air conditioner is provided to adjust direction of discharge air by mounting dampers in air discharge ports, and to cool indoors efficiently by sucking air from a front of a body and discharging air through sides of body. CONSTITUTION: An air conditioner is composed of a body(110) having air discharge ports(111,112) discharging air in upper, lower, left and right parts; a front panel(120) installed in the front of the body with an air suction port(121); a heat exchanger(130) installed in the rear part of the front panel; a fan(140) discharging air from the heat exchanger; a motor(150) driving the fan; dampers(115) installed in air discharge ports to adjust the discharge direction by opening and closing the air discharge ports; and a grille(117) integrally formed in the upper discharge port to discharge air to the front and the ceiling. Direction of discharge air is controlled with installing dampers in the air discharge ports, and air is discharged with forming the grille integrally in the upper air discharge port. Cooling efficiency is improved with discharging air constantly and actively.
Patent KR-20020009704-A (KR)
Inventor: KIM TAE HYEONG
IPC: H02K21/16
Filed: 2000-07-26
Abstract: PURPOSE: A two-free motion type motor is provided to generate linear driving force and rotational driving force, simultaneously or respectively. CONSTITUTION: A two-free motion type motor comprises a motor casing(20) and a complex core(30). The complex core(30) is of a cylinder including a first wound coil group(40) in its inside and a second wound coil group(50) at its outside. A rotor(60) having a permanent magnet is inserted at the center of the complex core(30) and rotates by interaction between flux that is induced at the first wound coil group(40) and the permanent magnet. A linear armature(70) is located at the side of the second wound coil group(50) and moves linearly, being a path of flux that is induced at the second wound coil group(50). A driving shaft(80) is coupled through the rotor(60) and the linear armature(70) and moves linearly and rotates. A spring(90) stores elastic energy of the linear armature(70) to emit it as linear motion.
Patent KR-20010066966-A (KR)
Inventor: LATIES ALAN MALEV
IPC: A61K31/00
Filed: 2000-07-27
Abstract: PURPOSE: Provided are methods of using, and compositions comprising, cyclic guanosine 3',5'-monophosphate phosphodiesterase type 5 inhibitors. They are useful in the prevention and treatment of diseases and conditions of the eye including, but not limited to, central retinal artery occlusion, central retinal vein occlusion, optic neuropathy including anterior ischemic optic neuropathy and glaucomatous optic neuropathy, and macular (dry) degeneration. CONSTITUTION: A cyclic guanosine 3',5'-monophosphate phosphodiesterase type 5 inhibitor is used for the manufacture of a medicament for treating or preventing central retinal or posterior ciliary artery occlusion; central retinal vein occlusion; optic neuropathy; or macular (dry) degeneration, wherein the cyclic guanosine 3',5'-monophosphate phosphodiesterase type 5 inhibitor is represented by the formula(1), wherein: R1 is H, C1-C3 alkyl, C3-C5 cycloalkyl, or perfluoroalkyl; R2 is H, C1-C6 alkyl optionally substituted by OH, C1-C3 alkoxy, or C3-C6 cycloalkyl, or C1-C3 perfluoroalkyl; R3 is C1-C6 alkyl, C3-C6 alkenyl, C3-C6 alkynyl, C3-C7 cycloalkyl, C1-C6 perfluoroalkyl, or (C3-C6 cycloalkyl)C1-C6 alkyl; R4 taken together with the nitrogen atom to which ills attached completes a pyrrolidinyl, piperidino, morpholino, or 4-N-(R)-piperazinyl group; R5 is H, C1-C4 alkyl, C1-C3 alkoxy, NRR, or CONRR; R6 is H, C1-C6 alkyl, (C1-C3 alkoxy)C2-C6 alkyl, hydroxy C2-C6 alkyl, (RRN)C2-C6alkyl, (RRNCO) C1-C6 alkyl, CONRR, CSNRR, or C(NH)NRR and R7 and R8 are each independently H, C1-C4 alkyl, (C1-C3 alkoxy)C2-C4 alkyl, or hydroxy C2-C4 alkyl; or a pharmaceutically acceptable salt or solvate thereof.
Patent KR-20020009988-A (KR)
Title: An automotive accel cable having anti-vibration device
Inventor: CHO YANG RAE
IPC: B60K26/04
Filed: 2000-07-28
Abstract: PURPOSE: An acceleration cable having a damping unit in a vehicle is provided to shut off vibration and noise from an engine, and to prevent noise through an acceleration cable to a driver's seat by connecting with cutting and separating the acceleration cable. CONSTITUTION: A vibration damping device is composed of a protection member(1) having protection rings(1a',1b') connecting an acceleration cable(a) of a driver's seat and an acceleration cable(a') of an engine room, a plastic holder cap(1a) and a cover cam(1b); and a moving member(2) inserted to the protection member to reciprocate in the stroke range of the protection member by the acceleration cable. Vibration and noise are absorbed through a connecting member combined with the cable of the engine room, the moving member and a connecting member connected to the cable of the accelerator in transmitting vibration and noise from the engine through the cable. Noise and vibration are shut off efficiently with absorbing in three steps and with connecting in cutting and separating the acceleration cable.
Patent KR-20000063684-A (KR)
Inventor: SIM YEONG BO
IPC: H02B1/24
Filed: 2000-07-29
Abstract: PURPOSE: A switchboard to which a noise and surge voltage removing device is mounted is provided to prevent the damage of an electrical appliance by removing noises and surge voltages. CONSTITUTION: A main interrupter(51) is installed in a case(50). A drawing wire(P) is connected to the main interrupter(51). The main interrupter(51) controls the overall electrical power. A plurality of auxiliary interrupters(52) is installed in a switchboard to distribute the current supplied from the main interrupter(51). A noise and surge voltage removing device(100) is installed between the main interrupter(51) and the auxiliary interrupters(52) to remove noises mixed in a drawn electrical power source and to remove surge voltages generated by over-voltages.
Patent KR-20020010977-A (KR)
Inventor: LEE JUN GANG
IPC: B60H3/00
Filed: 2000-07-31
Abstract: PURPOSE: A blower wheel unit of an air conditioner is provided to improve heat exchange efficiency by increasing the blowing amount, and to manufacture a blower wheel unit conveniently and reduce power consumption by discharging air through an upper part of a main blade with auxiliary blades. CONSTITUTION: A blower wheel unit for an air conditioner is composed of an upper case(26a) having an intake port and a discharge port; a lower case(26b) having a fitting hole to inserting a blower motor(36), and a discharge port corresponding to the discharge port of the upper case; and a blower wheel(24) rotating by the blower motor, and having a hub(242) and plural main blades(248). Plural auxiliary blades(300) are installed in the upper part of the hub in the blower wheel. Air is sucked to the blower unit through the intake port of the upper case in turning the blower wheel, and discharged with diverging by auxiliary blades. Vortex in the upper part of the wheel is reduced with installing auxiliary blades, and blowing efficiency is improved with increasing flow rate. Heat exchange efficiency is improved with discharging air through upper and lower parts of the main blade. Power consumption is reduced with sucking air by turning auxiliary blades.
Patent KR-20020007114-A (KR)
Inventor: HAN SANG KWAN
IPC: E02B7/20
Filed: 2000-08-02
Abstract: PURPOSE: An automatic water gate construction method is provided to keep water level of reservoir water as planned and to form an underwater girder installed to improve the quality of polluted water. CONSTITUTION: The automatic water gate construction method comprises the steps of: constructing a column(6) to a dam or a wall by using materials such as an H-beam; attaching a water gate(1) by a movable shaft(5) to the column(6), wherein the shape of the water gate(1) is formed as a vacuum rectangular plate to take water pressure and buoyancy; and connecting a cylinder(4) with the water gate(1) on the movable shaft(5) supporting the water gate(1).
Patent KR-20020012784-A (KR)
Title: Multi Controling Device For Carbon dioxide
Inventor: CHAE SANG MUK
IPC: A01G9/24
Filed: 2000-08-08
Abstract: PURPOSE: An apparatus for controlling carbon dioxide is provided to control the amount of the carbon dioxide in the interior of plural rooms by using only one blower and one sensor, thus to reduce the cost of installation thereof. CONSTITUTION: The apparatus for controlling carbon dioxide comprises an air flow control device(20) coupled to an air flow pipe(10) communicating with each room for controlling the opening and closing of the air flow pipe; a support device(42) for the air flow control device; an air inhalation device(60) connected with the air flow control device for blowing air to make the air be entered into the air flow pipe; and a carbon dioxide sensor(60) for detecting the amount of carbon dioxide contained in the air flown through the air inhalation device.
Patent KR-20020013162-A (KR)
Title: Method and apparatus for showing spot removal of washing machine
Inventor: CHO SO YEONG
IPC: D06F33/02
Filed: 2000-08-11
Abstract: PURPOSE: A guiding device and method for removing stains in a washing machine are provided to improve the washing efficiency by displaying the removing method of stains as a user's demands. CONSTITUTION: In feeding power to a washing machine and selecting a stain removing method, each stain list is displayed. In selecting a stain removing method among the displayed stain lists by a user, the selected stain removing method is displayed. By displaying the stain removing method according various stains, a washing process is progressed after previously removing corresponding stains before washing. Therefore, the washing convenience and the washing efficiency are improved.
Patent KR-20020014409-A (KR)
Title: High voltage control circuit for the monitor
Inventor: KIM RAE HYEON
IPC: H04N3/19
Filed: 2000-08-18
Abstract: PURPOSE: A high-voltage adjustment circuit of a monitor is provided to keep a high voltage regularly by comparing feedback voltage from an FBT(Fly Back Transformer) with reference voltage and outputting properly-adjusted voltage. CONSTITUTION: A high-voltage adjustment circuit of a monitor consists of an FBT, a high voltage control unit(30), an MCU(Microcomputer Unit,10) and an operation amplifier(20). The FBT receives power from a primary B+ terminal and induces a high voltage from a secondary terminal to supply the voltage to the anode of a CRT(Cathode Ray Tube). The FBT is connected with the high voltage control unit to control the high voltage output from the FBT. In the operation amplifier, a positive input terminal is connected to a high-voltage output terminal of the FBT to receive voltage proportional to the high voltage with resistors(R1,R2). A negative input terminal is connected to an output terminal of the MCU. The MCU receives feedback voltage(Vf) from the FBT. The feedback voltage is proportional to the high voltage by adjusting the turning frequency of a coil of the FBT. The high voltage is kept regular through automatic adjustment in power on/off or other causes.