A7512DB

Overview

The A7512DB Power Supply Module is a compact desktop solution to provide stable and noiseless power supply for single and multi-gap Resistive Plate Chamber (RPC) detectors.

The module houses a digital controlled high voltage channel that provides a 12 kV maximum voltage with 200 mV monitor resolution The maximum output current is 20 μA, with 500 pA monitor resolution. It is available with either positive or negative output voltage. HV output is delivered through LEMO HV connector.

The following channel parameters can be programmed

• Output voltage: 0 ÷ 12 kV step: 200 mV
• Current limit 0 ÷ 20 μA step: 1 nA
• Voltage Ramp up/down: 1 ÷ 500 V/sec step: 1 V/sec
• TRIP parameter

Power supply control can be performed remotely, via RS485, that allows to build a daisy chain network of A75xxDB modules.
A7512DB houses also bias output through LEMO 00 connector for preamplifiers power supply. Three different options are available: 2.8 V / 3.3 V / 5 V (maximum output power: 3 W).

Safety features include:

• Overcurrent detection: if the channel attempts to draw a current larger than Iset, the output voltage is automatically adjusted to keep the current below Iset limit. Under this condition, the channel behaves as a current generator.
• The Module can be enabled or disabled through the interlock logic.