
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:
8 Amps
Peak Current
15 Amps
Nominal Amplifier Gain
0.8 Amps/Volt
Switching Frequency
33 kHz
Minimum Load Inductance:
L
(
mH
)=
Vs
(
V
)
264
∗
I
Ripple
(
A
)
Where:
Vs
= Supply Voltage
I
ripple
= 10% of the maximum current at chosen gain setting
Brushless Motor Commutation angle
120°
The default PWM output operation on the AMP-435x0(-D3540,-D3520) is Inverter Mode. The
minimum inductance calculations above are based on Inverter mode. If you have a motor with lower
inductance, Chopper mode can be applied for the PWM output. Contact a Galil Applications Engineer
to review minimum inductance requirements if Chopper mode operation 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)
A4 – AMP-435x0 (-D3540,-D3520) ▫ 229
DMC-40x0 User Manual