Electrical Specifications
The amplifier is a brush/brushless transconductance PWM amplifier. The amplifier operates in torque mode, and
will output a motor current proportional to the command signal input.
Supply Voltage: 20-80 VDC
Continuous Current: 16 Amps
Peak Current 30 Amps
Nominal Amplifier Gain 1.6 Amps/Volt
Switching Frequency 20 kHz
Minimum Load Inductance:
L(mH )=
Vs(V )
160∗I
Ripple
( A)
Where:
Vs = Supply Voltage
I
ripple
= 10% of the maximum current at chosen gain setting
Brushless Motor Commutation angle 120°
Mating Connectors
On Board Connector Mating Connector Terminal Pins
POWER
6-pin Molex Mega-Fit™
MOLEX# 172065-0006
6-pin Molex MegaFit™
MOLEX# 171692-0106
MOLEX # 172063-0312
A,B,C,D: 4-pin
Motor Power
Connectors
4-pin Molex Mega-Fit™
MOLEX# 172065-0004
4-pin Molex MegaFit™
MOLEX# 171692-0104
MOLEX # 172063-031
Motor Connector Power Connector
This is the top view of the on board connectors on the AMP-43740.
Power Connector
Pin Number Connection
1,2,3 DC Power Supply Ground
4,5,6 +VS (DC Power)
Motor Connector
1 Phase C
2 Phase B (N/C for Brushed Motors)
3 No Connect
4 Phase A
A6 – AMP-43740 (-D3740) ▫ 242 DMC-40x0 User Manual
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