Technical
Information
Manual
Revision n. 0
15 July 2002
MOD. A864
+2100 V High Efficiency
Power Supply Module
NPO:
A112/01:A864x.MUTx/00
PRELIMINARY
Document type:
User's Manual (MUT)
Title:
Mod. A864 +2100 V High Efficiency Power Supply Module
Revision date:
15/07/2002
Revision:
0
TABLE OF CONTENTS
1.
TECHNICAL DESCRIPTION.................................................................................................................... 3
2.
PACKAGE .................................................................................................................................................... 4
3.
PIN DESCRIPTION..................................................................................................................................... 5
3.1.
GND .................................................................................................................................................... 5
3.2.
VIN ....................................................................................................................................................... 5
3.3.
VSET INPUT .......................................................................................................................................... 5
3.4.
VMON OUTPUT...................................................................................................................................... 5
3.5.
VOUT .................................................................................................................................................... 5
LIST OF FIGURES
FIG. 2.1: MOD. A864 DIMENSIONS AND PINS PATTERN ............................................................................................ 4
FIG. 2.2: MOD. A864 BLOCK DIAGRAM. .................................................................................................................. 4
FIG. 3.1: MOD. A864 PINS POSITION........................................................................................................................ 5
LIST OF TABLES
TABLE 1.1 – MOD. A864 TECHNICAL SPECIFICATIONS. ........................................................................................... 3
NPO
A112/01:A864x.MUTx/00
Filename:
A864_REV0.DOC
Number of pages:
5
Page:
2
PRELIMINARY
Document type:
User's Manual (MUT)
Title:
Mod. A864 +2100 V High Efficiency Power Supply Module
Revision date:
15/07/2002
Revision:
0
1. Technical description
The CAEN Mod. A864 is a high efficiency power supply providing a programmable and
monitorable output voltage ranging from 0 to +2100 V, when supplied with a +12 V input.
The board is provided with an over-current protection: if a current larger than the Iout
maximum value (see Table 1.1) is drawn, the module is not being damaged.
The output voltage is regulated by providing a 0 to +2.5 V external voltage (Vset). The
A864 provides a maximum output of +2300 V even if Vset exceeds the +2.5 V value, thus
avoiding damages in the supplied device.
The module is engineered on a polyamide PCB, coated and housed in an alloy box.
The following table summarises the module’s features:
Table 1.1 – Mod. A864 technical specifications.
Packaging
Alloy Box
Packaging dimension
W=25 mm ; L=100 mm ; H=13 mm
Operating temperature
-10° C ÷ +70° C
Storage temperature
-10° C ÷ +70° C
Voltage Supply (Vin)
+12 V ± 5%
Output Voltage (Vout)
0 ÷ +2100 V
Output polarity
Positive
Vset Input (positive analog command)
0 ÷ +2.5 V
Vmon Output (positive analog monitor)
0 ÷ +5 V
∆Vout/Vout (for ±5% Vin variations)
Maximum Output Current (Iout)
<1.5 X 10
-3
@ full scale
100 µA @ +2100 V
<450 mW
Dissipated power
Output Ripple (Full Load)
Thermal stability (∆
∆Vout/Vout)
(@ 2100 V for Rload ≈ 20 MΩ)
<10 mV pp , <5 mV ppm
-4
< 10 / °C
Vout vs. Vset Integral Non Linearity
<2 X 10
Vmon vs. Vout Integral Non Linearity
<2 X 10
-3
-3
@ full scale
@ full scale
Electromagnetic compatibility
Weak emission of electromagnetic impulse and RF;
one-piece metal shielding with several ground
connections
Reliability
The module is designed to operate continuously for
more than 10 years
Uniformity of a lot
Over current, output over voltage, short circuit,
sparks and humidity
Protection
NPO
A112/01:A864x.MUTx/00
< ±2 %
Filename:
A864_REV0.DOC
Number of pages:
5
Page:
3
PRELIMINARY
Document type:
User's Manual (MUT)
Title:
Mod. A864 +2100 V High Efficiency Power Supply Module
Revision date:
15/07/2002
Revision:
0
2. Package
The module is housed in a 100mm X 25mm X 13 mm metal box. The board is
engineered on a polyamide PCB and all components are coated.
Vin
Vset
GND
Vmon
Vout
10
0m
13 mm
GND
m
25 mm
Fig. 2.1: Mod. A864 dimensions and pins pattern
Vset (0 ÷ +2.5 V)
Vmon (0 ÷ +5 V)
Vout 0 ÷ +2.1 kV
Vin
(+12 V)
Fig. 2.2: Mod. A864 block diagram.
NPO
A112/01:A864x.MUTx/00
Filename:
A864_REV0.DOC
Number of pages:
5
Page:
4
PRELIMINARY
Document type:
User's Manual (MUT)
Title:
Mod. A864 +2100 V High Efficiency Power Supply Module
Revision date:
15/07/2002
Revision:
0
3. Pin Description
4
Vmon
6
GND
3
5
Vout
2
Vset
GND
1
Vin
The module features six Input/Output pins (see Fig. 3.1). The following sections will
describe their function.
Fig. 3.1: Mod. A864 pins position
3.1. GND
Pin 1 and Pin 6 must be connected to ground (there is no galvanical insulation between
them).
3.2. Vin
Pin 2 must be supplied with a +12 V (± 5%) dc voltage.
3.3. Vset input
Pin 3 must be supplied with a voltage ranging from 0 to +2.5 V dc, in order to regulate the
output voltage (see § 3.5) from 0 to 2100 V (Vset=0 V → Vout=0 V, Vset=+2.5 V →
Vout=+2100 V).
Vset may exceed the 2.5 V value, leading Vout (see § 3.5) to its 2300 V hardware
upper limit.
Linearity is not guaranteed when Vset exceeds the +2.5 V value.
3.4. Vmon output
Pin 4 provides a voltage ranging from 0 to +5 V dc, which allows to monitor the output
voltage (see § 3.5) from 0 to +2100 V.
If Vmon=0 V then the output voltage is 0 V, if Vmon=+5 V then the output voltage is
+2100 V.
3.5.
Vout
Pin 5 provides the HV output. This value can be regulated from 0 to +2100 V (see § 3.3);
the hardware safety limit is set at +2300 V.
NPO
A112/01:A864x.MUTx/00
Filename:
A864_REV0.DOC
Number of pages:
5
Page:
5