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1. WO2020134234 - SHORT CIRCUIT PROTECTION CIRCUIT OF INTERFACE AND SET-TOP BOX

Publication Number WO/2020/134234
Publication Date 02.07.2020
International Application No. PCT/CN2019/107521
International Filing Date 24.09.2019
IPC
H02H 3/08 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
08responsive to excess current
H02H 3/06 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
02Details
06with automatic reconnection
H04N 21/41 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
41Structure of client; Structure of client peripherals
H04N 21/426 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
41Structure of client; Structure of client peripherals
426Internal components of the client
G01R 31/02 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
02Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
CPC
H02H 3/06
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
02Details
06with automatic reconnection
H02H 3/08
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
08responsive to excess current
H04N 21/41
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
41Structure of client; Structure of client peripherals
H04N 21/426
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
41Structure of client; Structure of client peripherals
426Internal components of the client ; ; Characteristics thereof;
Applicants
  • 深圳市九洲电器有限公司 SHENZHEN JIUZHOU ELECTRIC CO., LTD. [CN]/[CN]
Inventors
  • 葛丽博 GE, Libo
Agents
  • 深圳中一联合知识产权代理有限公司 SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201811628301.328.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SHORT CIRCUIT PROTECTION CIRCUIT OF INTERFACE AND SET-TOP BOX
(FR) CIRCUIT DE PROTECTION CONTRE LES COURTS-CIRCUITS D'INTERFACE ET BOÎTIER DÉCODEUR
(ZH) 接口短路防护电路及机顶盒
Abstract
(EN)
A short circuit protection circuit of an interface and a set-top box, wherein the short circuit protection circuit of an interface comprises a fuse unit (100), a MOS transistor unit (200) and a short circuit detection unit (300). When short circuiting occurs at an interface, the fuse unit (100) is disconnected, and the short circuit detection unit (300) controls the MOS transistor unit (200) to disconnect, thereby disconnecting the supply of power of a power supply source for the interface. The present protection circuit is capable of effectively preventing an interface from being damaged by short circuiting, and ensures that the interface and an electronic product are used normally and are safe.
(FR)
Un circuit de protection contre les courts-circuits d'une interface et d'un boîtier décodeur, le circuit de protection contre les courts-circuits d'une interface comprenant une unité de fusible (100), une unité de transistor MOS (200) et une unité de détection de court-circuit (300). Lorsqu'un court-circuit se produit au niveau d'une interface, l'unité de fusible (100) est déconnectée, et l'unité de détection de court-circuit (300) commande l'unité de transistor MOS (200) pour se déconnecter, ce qui permet de déconnecter l'alimentation d'un bloc d'alimentation pour l'interface. Le présent circuit de protection est capable d'empêcher efficacement qu'une interface ne soit endommagée par un court-circuit, et assure que l'interface et un produit électronique sont utilisés normalement et sont sans danger.
(ZH)
一种接口短路防护电路及机顶盒,接口短路防护电路包括保险丝单元(100)、MOS管单元(200)以及短路检测单元(300)。在接口发生短路时,保险丝单元(100)断开,短路检测单元(300)控制MOS管单元(200)断开,从而断开供电电源对接口的供电。该防护电路能够有效防止短路对接口造成的损坏,保证接口和电子产品正常使用及安全。
Also published as
Latest bibliographic data on file with the International Bureau