Some basic specs and features of the prototype at this state:
- Voltage Range: 0 to 30V (hardware allows up to 50V).
- Current Range 0 to 3A (stationary thermal limit of shunt, short time 5A).
- Power: 0 to 90W (depending on the heatsink).
All set points of the different modes can be controlled via the PC.
- Constant current.
- Constant voltage.
- Constant resistance.
- Constant power.
- Stationary accuracy (measurement & control over full range):
- Current: ± 5mA (<0.2% of 3A).
- Voltage: ±50mV (<0.2% of 30V).
- Dynamic control behavior
- Current step response from 0 to 3A in less than 100µs (without communication time delay).
- Resistance and power step response -> Dependent on power source, assuming a low impedance source you get nearly the same dynamic as in current controller mode.
- Voltage control step response (e.g.: 30 to 10 or 10 to 30V): mostly dependent on the power source. With most laboratory power supplies less than 20ms.
- Dynamic disruptive behavior:
- More to come...