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
For mating connectors see http://www.molex.com/
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
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