CN107733211B - 大功率交流降压电源排插 - Google Patents
大功率交流降压电源排插 Download PDFInfo
- Publication number
- CN107733211B CN107733211B CN201710911775.8A CN201710911775A CN107733211B CN 107733211 B CN107733211 B CN 107733211B CN 201710911775 A CN201710911775 A CN 201710911775A CN 107733211 B CN107733211 B CN 107733211B
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- power
- control
- bidirectional
- 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
Links
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
- H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/085—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current making use of a thermal sensor, e.g. thermistor, heated by the excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Rectifiers (AREA)
- Power Conversion In General (AREA)
Abstract
本发明涉及大功率小体积交流降压电源排插,其具有输入端及输出端,于输入端及输出端之间设置大功率双向可控硅电路,由大功率双向可控硅电路依据输入端电压值控制输出端的输出电压;所述大功率双向可控硅电路通过继电器控制电路配合取样驱动触发电路控制,继电器控制电路则由整流滤波比较取样电路控制,整流滤波比较取样电路对输入端的电源整流滤波及取样比较,符合电压要求的直通至输出端的工作插座,保证了功率。而当电压高时,电压经过检测后由大功率双向可控硅电路降压输出,即满足了功率的需要,又因体积小携带方便。
Description
技术领域
本发明涉及电源排插技术领域,尤其是电源排插的控制技术领域。
背景技术
根据市场分析调究发现:美国,日本,加拿大等市电为110V电压的国家,他们很喜欢带着自己随身携带着各类电器产品(比如吹风机,烫发器,圈发器,电热水壶,电脑以及其它各类日用小电器产品)去欧洲和全球旅行。而目前市面上这种全电压的降压电源功率只有200W,只能给笔记本电脑,手机充电器等小功率电器供电,且这种小功率的电器输入电压都是全电压。对于单电压的电器因功率过大而无法使用,如电吹风机和烫发器。
发明内容
本发明的目的在于克服现有技术缺陷,提供一种大功率交流降压电源排插,满足需要。
为达到上述目的,本发明采用如下技术方案:
大功率交流降压电源排插,其具有输入端及输出端,于输入端及输出端之间设置大功率双向可控硅电路,由大功率双向可控硅电路依据输入端电压值控制输出端的输出电压;所述大功率双向可控硅电路通过继电器控制电路配合取样驱动触发电路控制,继电器控制电路则由整流滤波比较取样电路控制,整流滤波比较取样电路对输入端的电源整流滤波及取样比较。
上述方案中,所述整流滤波比较取样电路是双路设计,一路供给继电器控制电路,实现比较控制;另一路供给输出端。
上述方案中,所述继电器控制电路是通过继电器触点吸合提供工作电压使可控硅为直通状态工作;而继电器控制电路的继电器触点断开则是取样驱动触发电路工作,驱动双向可控硅工作并降压输出。
上述方案中,所述取样驱动触发电路由电阻R20、R21、R22及稳压管ZENER3构成,其中电阻R20、R22并联后与电阻R21、稳压管ZENER3串联,稳压管ZENER3另一端连接大功率双向可控硅电路的双向可控硅控制极。
上述方案中,所述大功率双向可控硅电路的双向可控硅Q1并联连接由电阻R1和电容C2串联构成的降压电路。
上述方案中,所述输入端上设有温度控制及过载开关电路,温度控制及过载开关电路在电流过大及温升超过100摄氏度时自动切断电路输出。
上述方案中,所述输入端还经过开关电源电路引出USB输出端口。
本发明提供的大功率小体积交流降压电源排插,通过整流滤波比较取样电路对输入端的电源整流滤波及取样比较,符合电压要求的直通至输出端的工作插座,保证了功率。而当电压高时,电压经过检测后由大功率双向可控硅电路降压输出,即满足了功率的需要,又因体积小携带方便。
附图说明:
附图1为本发明的方框原理图;
附图2为本发明的其一电路图。
具体实施方式:
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明,以充分地了解本发明的目的、特征和效果。
参阅图1、2所示,为本发明较佳实施例结构示意图,本发明有关一种大功率小体积交流降压电源排插,其具有输入端1及输出端2,于输入端及输出端之间设置大功率双向可控硅电路3,由大功率双向可控硅电路3依据输入端电压值控制输出端的输出电压。所述大功率双向可控硅电路3通过继电器控制电路4配合取样驱动触发电路6控制,继电器控制电路4则由整流滤波比较取样电路5控制,整流滤波比较取样电路5对输入端1的电源整流滤波及取样比较,符合电压要求的直通至输出端的工作插座,保证了功率。而当电压高时,电压经过检测后由大功率双向可控硅电路降压输出,即满足了功率的需要,又因体积小携带方便。
图1、2所示,本实施例中,所述整流滤波比较取样电路5是双路设计,一路采用整流桥BRIDGE1供给继电器控制电路4,实现比较控制;另一路供给输出端2。继电器控制电路4是通过继电器触点吸合提供工作电压使可控硅为直通状态工作;而继电器控制电路4的继电器触点断开则是取样驱动触发电路6工作,驱动双向可控硅工作并降压输出。图中,本实施例的取样驱动触发电路6由电阻R20、R21、R22及稳压管ZENER3构成,其中电阻R20、R22并联后与电阻R21、稳压管ZENER3串联,稳压管ZENER3另一端连接大功率双向可控硅电路3的双向可控硅控制极(G极)。大功率双向可控硅电路3的双向可控硅Q1并联连接由电阻R1和电容C2串联构成的降压电路,优选大功率双向可控硅电路3降压输出为输入的一半电压。在输入端1上设有温度控制及过载开关电路7,温度控制及过载开关电路7在电流过大及温升超过100摄氏度时自动切断电路输出。输入端1还经过开关电源电路8引出USB输出端口9,USB智能识别,满足不同需要。开关电源电路8另外还提供5V电压给继电器控制电路4的继电器工作,起到保护功能,提升使用安全性。当5V电压停止供电,或是因为取样或比较电路或是可控硅损坏时,此5V工作电压还提供比较取样,断开输出供电,以确保安全。
本发明主要市场为美国,日本,加拿大等120V电压区域国家,所以排插本体上提供3位或4位美式插座。当电源插头电压接入AC 90V-130V 时(即输入端1的电压),这时整流滤波比较取样电路5整流检测电路工作后进行电压比较,当市电低于130V时,继电器控制电路4通过继电器触点吸合提供工作电压使可控硅为直通状态工作,直接给排插供电,保证了功率。当电源插头接入130V 以上的市电时,整流滤波比较取样电路5检测到高电平时,进行比较后,继电器控制电路4的继电器触点断开,接通取样驱动触发电路6,驱动双向可控硅工作并降压输出,输出50%的电压,满足需要。
本发明提供的大功率小体积交流降压电源排插,通过整流滤波比较取样电路对输入端的电源整流滤波及取样比较,符合电压要求的直通至输出端的工作插座,保证了功率。而当电压高时,电压经过检测后由大功率双向可控硅电路降压输出,即满足了功率的需要,又因体积小携带方便。
对于本发明中,在输入端1上设有温度控制及过载开关电路7,温度控制及过载开关电路7在电流过大及温升超过100摄氏度时自动切断电路输出,使用安全。而输入端1还经过开关电源电路8引出USB输出端口9,提供不同端口,满足不同需要,提升产品的实用性。
以上结合实施方式对本发明做了详细说明,只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人了解本发明的内容并加以实施,并不能以此限定本发明的保护范围,故凡根据本发明精神实质所做的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (6)
1.大功率交流降压电源排插,其特征在于:具有输入端(1)及输出端(2),于输入端及输出端之间设置大功率双向可控硅电路(3),由大功率双向可控硅电路(3)依据输入端电压值控制输出端的输出电压;所述大功率双向可控硅电路(3)通过继电器控制电路(4)配合取样驱动触发电路(6)控制,继电器控制电路(4)则由整流滤波比较取样电路(5)控制,整流滤波比较取样电路(5)对输入端(1)的电源整流滤波及取样比较;所述整流滤波比较取样电路(5)是双路设计,一路供给继电器控制电路(4),实现比较控制;另一路供给输出端(2);所述继电器控制电路(4)是通过继电器触点吸合提供工作电压使可控硅为直通状态工作;而继电器控制电路(4)的继电器触点断开则是取样驱动触发电路(6)工作,驱动双向可控硅工作并降压输出。
2.根据权利要求1所述的大功率交流降压电源排插,其特征在于:所述取样驱动触发电路(6)由电阻R20、R21、R22及稳压管ZENER3构成,其中电阻R20、R22并联后与电阻R21、稳压管ZENER3串联,稳压管ZENER3另一端连接大功率双向可控硅电路(3)的双向可控硅控制极。
3.根据权利要求1所述的大功率交流降压电源排插,其特征在于:所述大功率双向可控硅电路(3)的双向可控硅Q1并联连接由电阻R1和电容C2串联构成的降压电路。
4.根据权利要求1所述的大功率交流降压电源排插,其特征在于:所述输入端(1)上设有温度控制及过载开关电路(7),温度控制及过载开关电路(7)在电流过大及温升超过100摄氏度时自动切断电路输出。
5.根据权利要求1所述的大功率交流降压电源排插,其特征在于:所述输入端(1)还经过开关电源电路(8)引出USB输出端口(9);开关电源电路(8)另外还提供5V电压给继电器控制电路(4)的继电器工作。
6.根据权利要求1所述的大功率交流降压电源排插,其特征在于:所述大功率双向可控硅电路(3)降压输出为输入的一半电压。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710911775.8A CN107733211B (zh) | 2017-09-29 | 2017-09-29 | 大功率交流降压电源排插 |
US15/791,424 US10348297B2 (en) | 2017-09-29 | 2017-10-24 | High power compact alternate current voltage reducing power strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710911775.8A CN107733211B (zh) | 2017-09-29 | 2017-09-29 | 大功率交流降压电源排插 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107733211A CN107733211A (zh) | 2018-02-23 |
CN107733211B true CN107733211B (zh) | 2019-09-27 |
Family
ID=61209312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710911775.8A Expired - Fee Related CN107733211B (zh) | 2017-09-29 | 2017-09-29 | 大功率交流降压电源排插 |
Country Status (2)
Country | Link |
---|---|
US (1) | US10348297B2 (zh) |
CN (1) | CN107733211B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110224615B (zh) * | 2019-06-20 | 2024-08-20 | 广东百事泰医疗器械股份有限公司 | 智能可控硅电压转换电路 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63242198A (ja) * | 1987-03-30 | 1988-10-07 | Toshiba Corp | 同期機の励磁制御装置 |
CN2126470U (zh) * | 1992-01-21 | 1992-12-30 | 吉林大学 | 电子调压插座 |
CN2819624Y (zh) * | 2005-08-12 | 2006-09-20 | 刘立宝 | 一种宽范围全自动调压器 |
CN201690063U (zh) * | 2010-03-08 | 2010-12-29 | 杭州大力神医疗器械有限公司 | 输出功率及时间可控电源插座 |
CN206004536U (zh) * | 2016-09-21 | 2017-03-08 | 湖州市菱湖兴菱电力电子厂 | 单相交流固态调压器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101420088B (zh) * | 2008-11-10 | 2010-08-18 | 胡佰能 | 一种智能开关插座 |
JP5794113B2 (ja) * | 2011-11-04 | 2015-10-14 | オムロン株式会社 | ソリッドステートリレー及び負荷駆動回路 |
CN205407772U (zh) * | 2015-02-27 | 2016-07-27 | 广州市金矢电子有限公司 | 晶闸管驱动装置 |
US9953774B2 (en) * | 2015-06-29 | 2018-04-24 | Tao Liu | Electronic device for controlling high-voltage with multiple low-voltage switches |
-
2017
- 2017-09-29 CN CN201710911775.8A patent/CN107733211B/zh not_active Expired - Fee Related
- 2017-10-24 US US15/791,424 patent/US10348297B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63242198A (ja) * | 1987-03-30 | 1988-10-07 | Toshiba Corp | 同期機の励磁制御装置 |
CN2126470U (zh) * | 1992-01-21 | 1992-12-30 | 吉林大学 | 电子调压插座 |
CN2819624Y (zh) * | 2005-08-12 | 2006-09-20 | 刘立宝 | 一种宽范围全自动调压器 |
CN201690063U (zh) * | 2010-03-08 | 2010-12-29 | 杭州大力神医疗器械有限公司 | 输出功率及时间可控电源插座 |
CN206004536U (zh) * | 2016-09-21 | 2017-03-08 | 湖州市菱湖兴菱电力电子厂 | 单相交流固态调压器 |
Also Published As
Publication number | Publication date |
---|---|
US10348297B2 (en) | 2019-07-09 |
US20190103868A1 (en) | 2019-04-04 |
CN107733211A (zh) | 2018-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106329687B (zh) | 一种便携式交流充电桩控制电路 | |
CN105896622B (zh) | 高可靠性输电线路感应取能电源 | |
CN201975754U (zh) | 漏电过流保护电路 | |
CN203933169U (zh) | 一种电磁感应取电射频测温装置 | |
CN107733211B (zh) | 大功率交流降压电源排插 | |
CN202167708U (zh) | 一种遥控插座及与其相配套的遥控器 | |
CN202159854U (zh) | 一种智能节电插座 | |
CN204012658U (zh) | 配电变压器中性线断线保护装置 | |
CN110289756A (zh) | 一种电器及其待机电源 | |
CN204790456U (zh) | 一种用于家庭电源管理的开关控制装置 | |
CN202737761U (zh) | 水池用开关电源电路 | |
CN203206133U (zh) | 万能插座 | |
CN102290687A (zh) | 一种遥控插座及与其相配套的遥控器 | |
CN102709999A (zh) | 一种节能充电机 | |
CN209233503U (zh) | 一种ac-dc芯片自供电电路及充电器 | |
CN208656482U (zh) | 一种低损耗电动牙刷充电电路 | |
CN205829133U (zh) | 漏电保护器电压保护装置 | |
CN111342422B (zh) | 一种漏电保护电路和漏电保护装置以及用电设备 | |
CN105337557A (zh) | 一种三相异步电机节能器控制系统 | |
CN209674260U (zh) | 一种可靠性高的油浸式感应稳压器 | |
CN202475363U (zh) | 电机节电装置 | |
CN212062882U (zh) | 一种语音控制智能插座 | |
CN210326359U (zh) | 插座电路 | |
CN203827231U (zh) | 一种能自动适应110v和220v电压的无刷电机控制器 | |
CN203352462U (zh) | 电子节能电池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 |