50 • Chapter 9 AMP-20540/20520 DMC-21x3 Accessories
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: 18-60 VDC (Up to 80V optional)
Continuous Current: 7 Amps
Peak Current 10 Amps
Nominal Amplifier Gain 0.4, 0.7, and 1.0 A/V
Switching Frequency 60 kHz (up to 140 kHz available-contact Galil)
Minimum Load Inductance: 0.5 mH (low inductance option available)
Brushless Motor Commutation angle 120° (60° option available)
Layout
Drawing Not to Scale. For Reference Only. Dimensions are inches.
Figure 26 AMP-20540 Dimensions
Overall Dimensions: 6.92” x 4.85”
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