
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