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AG538D

New

12 Channel 1.5 kV/10 mA (12W) Common Ground Board

Features

  • 12 independently controllable High Voltage channels
  • SHV coaxial connectors
  • Available with either positive or negative polarity
  • 0 ÷ 1.5 kV output voltage
  • 10 mA current full scale, with 200 nA resolution
  • max output power: 12W per channel
  • 50 mV Voltage Set/Monitor resolution
  • Programmable TRIP parameter
  • Voltage ripple smaller than <20 mVpp (typical)
  • Current generator operation in Overcurrent condition

Overview

AG538D is a single width (5TE wide) board housing 12 independent high voltage and high-power channels. The board is available with either positive or negative output polarity and equipped with SHV coaxial connector.

The channels share a common floating return, which allows on-detector grounding reducing the noise level; the floating return is insulated from the crate earth up to ±50 V (with a 65 V hardware limit).

The output voltage range is 0 ÷ 1.5 kV, with 10 mA maximum output current (12W channel max output power) and 50 mV set and monitor resolution. The board is available with either positive or negative output polarity and equipped with SHV coaxial connector.

The boards is provided with both current and voltage protections. If over-current occurs, the relevant channel can be programmed either to turn off after a programmable trip time or to keep on providing the maximum allowed current: this particular feature allows the modules to work as current generator. The maximum output voltage can be fixed, through a potentiometer located on the front panel, at the same common value for all the board channels and this value can be read out via software. The board channels can be enabled according to the interlock logic. The HV RAMP-UP and RAMP-DOWN rates may be selected independently for each channel in the 1 ÷ 500 V/s range (1 V/s step).

Independently programmable for each channel:

Output voltage 0 ÷ 1.5 kV step: 50 mV
Current limit (Iset) 0 ÷ 10 mA step: 200 nA
V Ramp up/down: 1 ÷ 500 V/sec step: 1V/sec
TRIP parameter

Safety features includes:

  • Channels can be enabled or disabled through the Global Interlock logic.
  • Overvoltage and Undervoltage warning when the output voltage differs from the programmed value.
  • Overcurrent detection: when a channel attempts to exceed the programmed current limit, it signaled to be in “overcurrent” and enter in a TRIP status. The output voltage is varied to keep the current below the programmed limit for a programmable TRIP time, then the channel is switched off. If TRIP is set to “constant current mode”, the channel behaves like a current generator.
  • Hardware VMAX: maximum output voltage can be set, via front panel potentiometer, at the same common value for all the board channels. VMAX value can be read out via software.
  • Safety Board Interlock: this protection disables the HV generation when the HV outputs are not connected to their loads

Technical Specifications

No. of Channels

12 (Common Ground)

Output Voltage

0÷1.5 kV

Polarity

AG538DN: Negative AG538DP: Positive

Max. Output Current

10 mA

Voltage Set/Monitor Resolution

50 mV

Current Set/Monitor Resolution

200 nA

VMAX hardware

0÷1.5 kV common for all the board channels

VMAX hardware accuracy

± 2% of FSR

VMAX software

0÷3.5 kV settable for each channel

VMAX software resolution

1 V

Ramp Up/Down

1÷500 Volt/sec, 1 Volt/sec step

Voltage Ripple

< 20 mV typical; max 30mV

Voltage Monitor vs. Output Voltage Accuracy

typical: ± 0.3% ± 0.2 V max: ± 0.3% ± 1 V

Voltage Set vs. Voltage Monitor Accuracy

typical: ± 0.3% ± 0.2 V max: ± 0.3% ± 1 V

Current Monitor vs. Output Current Accuracy

typical: ± 2% ± 3 µA max: ± 2% ± 15 µA

Current Set vs. Current Monitor Accuracy

typical: ± 3% ± 3 µA max: ± 3% ± 15 µA

Maximum output power

12 W per channel (software safety limit)

Compare

Compare with High Voltage Power Supply.

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Ordering Options

Code Description
WAG538DXAAAA AG538DN - SYx527 negative H.V. -1.5 KV 10 mA 12W -SHV Connector common ground (12 ch) 
WAG538DXPAAA AG538DP - SYx527 positive H.V. +1.5 KV 10 mA 12W -SHV Connector common ground (12 ch) 

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