TEC Driver

タイトルまたは説明

FEATURES
 High Efficiency: ≥*0%
 Maximum Output Current: 2.5A
 Actual Object Temperature Monitoring
 High Stability: 0.*1°C
 High Reliability and Zero EMI
 Compact Size
 **0 % lead (Pb)-free and RoHS compliant
DESCRIPTION
The TECA*-XV-XV-D is an electronic module designed for
driving TECs (Thermo-Electric Coolers) with high stability
in regulating the object temperature, high energy efficiency,
zero EMI, and small package. Figure 1 is the photo of an
actual TECA*-XV-XV-D TEC controller.
This module provides interface ports for users to set the
desired object temperature, i.e. set-point temperature; the
maximum output voltage across TEC; and the compensation
network. The compensation network compensates the high
order thermal load and thus stabilizes the temperature control
loop.
It provides these functions: thermistor T-R curve
linearization, temperature measurement and monitoring,
temperature control loop status indication, TEC voltage
monitoring, power up delay, and shut down.
The TECA*-XV-XV-D comes with a high stability low
noise 3.0V voltage reference which can be used for setting
the desired object temperature by using a POT
(Potentiometer) or a DAC (Digital to Analog Converter).
When using this reference for setting the set-point
temperature, the set-point temperature error is independent
of this reference voltage. This is because the internal
temperature measurement network also uses this voltage as
the reference, the errors in setting the temperature and
measuring the temperature cancel with each other, setting the
object temperature with higher stability. This reference can
also be utilized by an ADC (Analog to Digital Converter),
for the same reason, the measurement error will also be
independent of the reference voltage, resulting in a more
accurate measurement.