R&S®NGPU Programmable Power Supplies
Constant Voltage or Constant-Current Sources
- Programming via IEC/IEEE bus or manual operation
- Three-digit programming of voltage and current (1000 steps), resolution: 10 to 100 mV, 10 to 20 mA
- Output current in three decade ranges
Graduated current loadability
Since the current drain of many loads – for instance of transceivers – is inversely proportional to the supply voltage, a graduated current loadability is fully compatible with practical requirements. The maximum continuous current drain for the selected output voltage is indicated on a scale of the panel voltmeter. Brief current surges exceeding this load limit are tolerable. If above 15 V a current exceeding this limit is permanently drawn, the power supply is disconnected from the AC supply via the built-in temperature monitor
Current loadability is graduated as a function of the output voltage. Full output current can be derived over almost 80% of the voltage range. As the figure shows, the characteristic practically combines the curves, ie the performance, of three individual supplies.
