Invention Grant
US08497478B2 High voltage supply to increase rise time of current through light source in an optical sensor system
有权
高电压电源可以增加光传感器系统中通过光源的电流上升时间
- Patent Title: High voltage supply to increase rise time of current through light source in an optical sensor system
- Patent Title (中): 高电压电源可以增加光传感器系统中通过光源的电流上升时间
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Application No.: US12652095Application Date: 2010-01-05
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Publication No.: US08497478B2Publication Date: 2013-07-30
- Inventor: Vipin C. Madhani , Alan Adamsky
- Applicant: Vipin C. Madhani , Alan Adamsky
- Applicant Address: US MA Danvers
- Assignee: OSRAM SYLVANIA Inc.
- Current Assignee: OSRAM SYLVANIA Inc.
- Current Assignee Address: US MA Danvers
- Agent Andrew Martin
- Main IPC: G01J5/02
- IPC: G01J5/02 ; H05B37/00
Abstract:
A high voltage supply circuit to drive a light source in an optical sensor system. The high voltage supply provides a high voltage output to the light source during the start of an on time for the light source to decrease current rise time through the light source. After the start of the light source on time, the high voltage output is disconnected from the circuit and a current source provides current output to the light source to drive the light source during the remainder of the light source on time.
Public/Granted literature
- US20100243897A1 High Voltage Supply to Increase Rise Time of Current Through Light Source in an Optical Sensor System Public/Granted day:2010-09-30
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