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DRIVER CIRCUIT
专利权人:
Koninklijke Philips N.V.
发明人:
BLANKEN, Pieter Gerrit
申请号:
EP16759743
公开号:
EP3349653A1
申请日:
2016.08.30
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
The invention describes a pulse oximeter driver circuit (1) realized to drive a load (12) comprising at least a red LED light source (SR) and an infrared LED light source (SIR), which driver circuit (1) comprises a current regulator (11) realized to provide LED current (Iload) to the LED light sources (SR, SIR) a power converter (10) realized to provide a DC output voltage (Utotal) comprising a current regulator voltage (U11) and a load voltage (Uload) and a feedback means (13A, 13B, 13C) realized to obtain a measure (UFB) of the instantaneous voltage drop (U11) across the current regulator (11) and to report the voltage drop measure (UFB) to the power converter (10). The invention further describes a pulse oximeter device (100), and a method of driving a pulse oximeter load (12).
来源网站:
中国工程科技知识中心
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