GE EV-1 controller in action (light test)

GE EV-1 controller in action (light test)

For testing, instead of controlling a DC motor, the EV-1 was hooked up to one of the 36 volt spotlights from the forklift.

Success! Yes, basically a very complicated silicon controlled dimmer switch!

Shown in the photo: my arm actuating the pot box (the accelerator pedal) to make the light come on and vary its brightness; top left is the forklift's forward/neutral/reverse direction selector.

	Curtis 1204-412 motor controller That green box is the controller that's in the car now: a rebuilt Curtis 36-48 volt 400 amp DC motor controller original...
	GE EV-1 control panel Here's the brains of the forklift. This control panel includes all the circuitry, fuses and contactors (big relays)...
	GE EV-1 DC motor controller The EV-1 SCR (silicon controlled resistance) type of controller actually has decent features: including adjustable accel...
	The GE EV-1 controller on the "test bench" We knew that the EV-1 worked: we had dropped 3 marine batteries in the Baker forklift and moved it under its own power f...
	GE EV-1 controller in action (light test) For testing, instead of controlling a DC motor, the EV-1 was hooked up to one of the 36 volt spotlights from the forklif...
	Curtis 1204-410 36-48 volt 225 amp Club Car golf cart controller Even after getting the EV-1 to work, we decided a "plug and play" golf cart controller would be easier for testing/devel...
	Finned aluminum heat sink (Inset: controller mounted on the heatsink) Controllers can get pretty hot when they're worked hard or for a long tim...
	Precharge resistor Most controllers have banks of capacitors inside that help to smooth current flow. The capacitors gradually discharge w...
	Curtis 1204-412: adjustable features Note the adjustable current limiting (CL) and acceleration rate (ACC). Plug braking (PLUG) mode isn't used. For maxi...

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