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1. (WO2018076173) AMPLITUDE-LIMIT OSCILLATION CIRCUIT
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Pub. No.: WO/2018/076173 International Application No.: PCT/CN2016/103225
Publication Date: 03.05.2018 International Filing Date: 25.10.2016
IPC:
H03B 5/12 (2006.01)
[IPC code unknown for H03B 5/12]
Applicants:
深圳市汇顶科技股份有限公司 SHENZHEN GOODIX TECHNOLOGY CO., LTD. [CN/CN]; 中国广东省深圳市 福田区保税区腾飞工业大厦B座13层 Floor 13, Phase B, Tengfei Industrial Building Futian Freetrade Zone Shenzhen, Guangdong 518000, CN
Inventors:
张孟文 ZHANG, Mengwen; CN
Agent:
北京龙双利达知识产权代理有限公司 LONGSUN LEAD IP LTD.; 中国北京市海淀区北清路68号院3号楼101 Rm.101, Building 3 No. 68 Beiqing Road, Haidian District Beijing 100094, CN
Priority Data:
Title (EN) AMPLITUDE-LIMIT OSCILLATION CIRCUIT
(FR) CIRCUIT D'OSCILLATION DE LIMITE D'AMPLITUDE
(ZH) 限幅振荡电路
Abstract:
(EN) An amplitude-limit oscillation circuit (100). The amplitude-limit oscillation circuit (100) comprises: an oscillation circuit (110) for generating an oscillation signal; a pulse width modulation circuit (120) for generating a pulse width modulation signal according to the amplitude of the oscillation signal; a low pass filter circuit (130) for converting the pulse width modulation signal into a direct-current control voltage signal, wherein the direct-current control voltage signal is used for controlling a voltage-controlled resistor circuit (140); and the voltage-controlled resistor circuit (140) for changing a resistance value of the voltage-controlled resistor circuit (140) under the control of the direct-current control voltage signal so as to control the amplitude of the oscillation signal. The amplitude-limit oscillation circuit (100) can improve the performance of the amplitude-limit oscillation circuit (100).
(FR) L'invention concerne un circuit d'oscillation de limite d'amplitude (100). Le circuit d'oscillation de limite d'amplitude (100) comprend : un circuit d'oscillation (110) pour générer un signal d'oscillation; un circuit de modulation de largeur d'impulsions (120) pour générer un signal de modulation de largeur d'impulsions en fonction de l'amplitude du signal d'oscillation; un circuit de filtre passe-bas (130) pour convertir le signal de modulation de largeur d'impulsions en un signal de tension de commande de courant continu, le signal de tension de commande de courant continu étant utilisé pour commander un circuit de résistance commandé en tension (140); et le circuit de résistance commandé en tension (140) pour changer une valeur de résistance du circuit de résistance commandé en tension (140) sous la commande du signal de tension de commande de courant continu de façon à commander l'amplitude du signal d'oscillation. Le circuit d'oscillation de limite d'amplitude (100) peut améliorer les performances du circuit d'oscillation de limite d'amplitude (100).
(ZH) 一种限幅振荡电路(100)。该限幅振荡电路(100)包括:振荡电路(110),用于产生振荡信号;脉冲宽度调制电路(120),用于根据该振荡信号的幅度,产生脉冲宽度调制信号;低通滤波电路(130),用于将该脉冲宽度调制信号转换为直流控制电压信号,该直流控制电压信号用于控制压控电阻电路(140);压控电阻电路(140),用于根据该直流控制电压信号的控制,变化该压控电阻电路(140)的电阻值,以控制该振荡信号的幅度。该限幅振荡电路(100)能够提高限幅振荡电路(100)的性能。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)