公开(公告)号：US20140111089A1

公开(公告)日：2014-04-24

申请号：US13658636

申请日：2012-10-23

Applicant: OSRAM SYLVANIA INC.

Inventor： Ashwani Guleria ,  Ashish Kumar Gupta

IPC: H05B37/03

CPC classification number: H05B41/2986 ,  H05B41/2855 ,  H05B41/2856

Abstract: A ballast including a latching circuit is provided. The ballast includes an inverter circuit for providing an oscillating voltage signal to energize a lamp set, a control circuit for controlling operation of the inverter circuit, and a voltage supply circuit for providing a supply voltage to the control circuit. The ballast also includes a fault detection circuit for detecting a fault condition and a latching circuit connected to the fault detection circuit. The latching circuit is configured to drain the supply voltage and thereby disable the control circuit so that operation of the inverter circuit is discontinued during a fault condition.

Abstract translation: 提供了包括闩锁电路的镇流器。 镇流器包括用于提供振荡电压信号以激励灯组的逆变器电路，用于控制逆变器电路的操作的控制电路和用于向控制电路提供电源电压的电压供应电路。 镇流器还包括用于检测故障状况的故障检测电路和连接到故障检测电路的锁存电路。 闩锁电路被配置为耗尽电源电压，从而禁止控制电路，使得在故障状态期间中止逆变器电路的操作。

公开(公告)号：US08729817B2

公开(公告)日：2014-05-20

申请号：US13658636

申请日：2012-10-23

Applicant: Osram Sylvania Inc.

Inventor： Ashwani Guleria ,  Ashish Kumar Gupta

IPC: H05B37/02 ,  H05B41/298 ,  H05B41/285

CPC classification number: H05B41/2986 ,  H05B41/2855 ,  H05B41/2856

Abstract: A ballast including a latching circuit is provided. The ballast includes an inverter circuit for providing an oscillating voltage signal to energize a lamp set, a control circuit for controlling operation of the inverter circuit, and a voltage supply circuit for providing a supply voltage to the control circuit. The ballast also includes a fault detection circuit for detecting a fault condition and a latching circuit connected to the fault detection circuit. The latching circuit is configured to drain the supply voltage and thereby disable the control circuit so that operation of the inverter circuit is discontinued during a fault condition.

Abstract translation: 提供了包括闩锁电路的镇流器。 镇流器包括用于提供振荡电压信号以激励灯组的逆变器电路，用于控制逆变器电路的操作的控制电路和用于向控制电路提供电源电压的电压供应电路。 镇流器还包括用于检测故障状况的故障检测电路和连接到故障检测电路的锁存电路。 闩锁电路被配置为耗尽电源电压，从而禁止控制电路，使得在故障状态期间中止逆变器电路的操作。