Invention Grant
US08274227B2 High-efficiency DC ballast arrangement with automatic polarity protection and emergency back-up for lighting fixture in a suspended DC-powered ceiling system
有权
高效直流镇流器配置，具有自动极性保护和紧急备用，用于悬挂式直流供电天花板系统中的照明灯具
- Patent Title: High-efficiency DC ballast arrangement with automatic polarity protection and emergency back-up for lighting fixture in a suspended DC-powered ceiling system
- Patent Title (中): 高效直流镇流器配置，具有自动极性保护和紧急备用，用于悬挂式直流供电天花板系统中的照明灯具
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Application No.: US12774928Application Date: 2010-05-06
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Publication No.: US08274227B2Publication Date: 2012-09-25
- Inventor: Anthony Mangiaracina
- Applicant: Anthony Mangiaracina
- Applicant Address: US MI Detroit
- Assignee: Nextek Power Systems, Inc.
- Current Assignee: Nextek Power Systems, Inc.
- Current Assignee Address: US MI Detroit
- Agency: Kirschstein, et al
- Main IPC: H05B37/00
- IPC: H05B37/00 ; H05B41/14
Abstract:
A high-efficiency ballast arrangement for a lighting fixture has an automatic polarity protection circuit for supplying an output DC voltage of constant polarity no matter in which orientation the fixture is mounted in a DC-powered suspended ceiling system having a DC power supply. A main DC ballast circuit includes a main DC ballast powered by the output DC voltage from the protection circuit to enable a lamp in the fixture to be illuminated during normal operation. An emergency back-up DC ballast circuit includes a battery charged to a charged DC voltage by the output DC voltage during the normal operation, and an emergency DC ballast powered by the charged DC voltage from the battery to enable the lamp in the fixture to be illuminated during emergency operation upon failure of the DC power supply.
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