CAEN
Electronic Instrumentation
A7030-AG7030 3kV/ 1mA (1.5W) HV Boards
4
1.
Overview
Functional description
The Mod. A7030
–
AG7030 is a family of multi channel HV boards, available with either positive or negative polarity,
compatible with the CAEN Universal Multichannel Power Supply System
1
(SY1527, SY2527, SY4527, SY5527).
The A7030 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; the return of the AG7030 channels is wired to the
crate Earth reference.
The output voltage range is 0 ÷ 3 kV, with 1 mA maximum output current and 50mV set and 10mV monitor resolution.
Maximum delivered output power is 1.5W per channel.
The boards are provided with both current and voltage protections.
Two output current limits are foreseen:
•
ISet; software limit, individually set for each channel; if exceeded, the relevant channel is signalled in
Overcurrent
•
IMax; hardware limit, common to all channels, set via front panel trimmer and monitored via software; if
exceeded 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 module to work as
current generator.
The maximum output voltage can be fixed, through a trimmer 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 boards have also the safety board interlock
(see p. 11).
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).
The boards are available with 12, 24, 36 and 48 channels; see also table below:
Model
No. of channels
HV connector
Width
Return
A7030D
12
SHV
Single (5TE)
Common Floating
A7030S
24
SHV
Double (10TE)
Common Floating
A7030L
24
Radiall 52pin
Single (5TE)
Common Floating
A7030T
36
Radiall 52pin
Single (5TE)
Common Floating
A7030
48
Radiall 52pin
Single (5TE)
Common Floating
AG7030D
12
SHV
Single (5TE)
Earth
AG7030S
24
SHV
Double (10TE)
Earth
AG7030L
24
Radiall 52pin
Single (5TE)
Earth
AG7030T
36
Radiall 52pin
Single (5TE)
Earth
AG7030
48
Radiall 52pin
Single (5TE)
Earth
1
Please verify that the Syx527 system is running the latest firmware release