In addition to motor control, the board also passes through signals, from the CT-2 controller board, for A/D position readout and motor speed control.
| Below are photos and the schematic for the HexFet board. It can
be interfaced with the CT-2 controller to provide direct control of DC
motors. The supply voltage for the motors is applied to the board
and the outputs from the board connect to the motors. The board
has 4 channels, UP, DOWN, CW and CCW. There are inputs provided
for push button switches to manually control the motors, and there is
safety lockout circuitry on the board to prevent trying to activate both
directions at once. These Hex FET's can handle current up to 20
amps. In addition to motor control, the board also passes through signals, from the CT-2 controller board, for A/D position readout and motor speed control.
|
Schematic of the HEX-1 Board. (Full size schematic below).
