
Electrical Specifications
The amplifier is a brush/brushless trans-conductance 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:
10 Amps
Peak Current
20 Amps
Nominal Amplifier Gain
1.0 Amps/Volt
Switching Frequency
24 kHz
Minimum Load Inductance:
L
(
mH
)=
Vs
(
V
)
192
∗
I
Ripple
(
A
)
Where:
Vs
= Supply Voltage
I
ripple
= 10% of the maximum current at chosen gain setting
Brushless Motor Commutation angle
120° (60° option available)
The default PWM output operation on the AMP-43240(-D3240) is Chopper Mode. Contact a Galil
Applications Engineer to review minimum inductance requirements if a lower inductance motor is
required.
Mating Connectors
On Board Connector
Terminal Pins
POWER
6-pin
Molex Mini-Fit, Jr.™
MOLEX# 39-31-0060
MOLEX#44476-3112
A,B,C,D: 4-pin Motor
Power Connectors
4-pin
Molex Mini-Fit, Jr.™
MOLEX# 39-31-0040
MOLEX#44476-3112
Power Connector
Pin Number
Connection
1,2,3
DC Power Supply Ground
4,5,6
+VS (DC Power)
Motor Connector
1
Phase C (N/C for Brushed Motors)
2
Phase B
3
No Connect
4
Phase A
A3 – AMP-43240 (-D3240) ▫ 223
DMC-40x0 User Manual