Hardware Structure
Theory of Operation
1 - 8
1.4.4
Parameter Boards
1.4.4.1
SpO
2
Module
2
module parameter board diagram.
FIGURE 1-7
SpO
2
Module Principle Diagram
The SpO
2
sensor collects the pulsing red and infrared light signals transmitting through the
finger or toe, and processes the collected signals to create the measured result. The SpO
2
module controls the LED drive circuit and the amplifying circuit gain corresponding to the
finger or toe perfusions and transmittances.
HOST
ISOLATED SERIAL
IN/OUTPUT PORT
4KV ISOLATED
POWER SUPPLY
+3.3V
+5V
-5V
+12V
CPU
/RST
WDI
DRAM
FLASH
A/D
CONVERTER
OFFSET DAC
OFFSET
AMPLIFIER
WATCHDOG
DRIVE DAC
LED DRIVE
CIRCUITRY
SENSOR
GAIN CONTROL
CIRCUITRY
PROGRAMMABLE
GAIN CIRCUITRY
Summary of Contents for Rosebud Accutorr V
Page 1: ...USER MANUAL Vital Signs Monitor...
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