powersoft DIGAM series User Manual

POWERSOFT
ENGLISH - 11
Technical Notes
• DIGAM amplifiers cannot work in bridge connection
• The DIGAM amplifier has an automatic power factor correction system for a perfect main network interface. The
amplifier is a resistive load for the main network, minimizing the reactive power and the harmonic distortion on the
current. The system allows performance to be maintained even in circumstances of varying the mains voltage.
• The output stage of the amplifier is a bridge configuration with both outputs ( positive and negative ) not refered to
ground. A DC voltage is present between these outputs and the ground ( Chassis ). This voltage is variable and
depends on the model from 40VDC to 80VDC .
• The connection of the processors equipped with a “feed-back” system must be done decoupling this voltage by
capacitor.
• The formula that rules the capacitor value and the schematic application are the following.
C≅ 1 / (30*Zin) where Zin is the input impedance of the processor used.
IMPORTANT : If decoupling is not performed the amplifier may go in protect mode.
+Vcc
In
One channel of DIGAM
Out
Processor
Zin
Zin
100
100
C
c

powersoft DIGAM series Specifications

General

Series	DIGAM
Dimensions	Varies by model
Weight	Varies by model
Output Power	Varies by model
Frequency Response	Varies by model
Signal-to-Noise Ratio	Varies by model
Total Harmonic Distortion	Varies by model
Input Sensitivity	Varies by model
Input Impedance	Varies by model
Cooling System	Varies by model
Power Supply	Varies by model