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Based on A7501 PCB mount HV DC-DC converter
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Temperature working range: -10°C ÷ 70°C
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Designed for long working life in harsh environment
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Architectural materials chosen to minimize issues due to thermal expansion
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Layout optimized for the worst foreseen environmental condition
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Redundancy of internal connections
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Connection and cabling with stress relief on solder points
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Stress absorption with silicon resin
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Several solutions from Aerospace electronics design
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Assembly optimized for easy maintenance operation
A7501B is a solution designed for operating in challenging environmental conditions and high thermal excursions. It relies on the high efficiency PCB High Voltage power supply A7501 embedded in a custom carrier.
In order to assure its functionality for long working periods under severe environmental conditions, several dedicated technical and electrical precautions have been implemented such as stress relief techniques on cabling and soldering points, electrical redundancies, PCB layout design, and use of specific materials to minimize the thermal expansion on PCB and housing mechanics.
These features make A7501B boxes ideal for Large Area experiments where the possibility of a prompt maintenance intervention is reduced.
Safety features include:
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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.
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Protected against short circuits, sparks and humidity.
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A7526DB |
1 |
2600 V |
500 µA |
Digital control / permanent calibration storage |
-35° C ÷ +75° C |
5 mVpp |
SHV |
RS485 interface |
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A7505B |
1 |
1600 V |
500 µA |
Regulated providing external Low voltage |
-10°C ÷ 70°C |
5 mVpp |
SHV |
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A7501B |
1 |
2100 V |
100 µA |
Regulated providing external low voltage |
-10°C ÷ 70°C |
5 mVpp |
LEMO HV <br>(ERA.0S.250.CTL) |
Imon /Temperature<br>remote inputs |
Technical Specifications
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Packaging |
Alloy Box, Dimension: 63 W x 35 H x 119 L mm3 |
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Output connector |
4200 VDC High Voltage connector |
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Imon & Temperature Connector |
4-pin G-Type Mini XLR |
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Control Connector |
15-pin Sub-Miniature D Connector |
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Operating temperature |
-40° C ÷ +70° C |
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Storage temperature |
-55° C ÷ +85° C |
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Voltage Supply (Vin) |
+12 V ± 5% |
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Output Voltage (Vout) |
0 ÷ ±2100 V |
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Output polarity |
Available positive or negative |
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Vmon Output (positive analog monitor) |
0 ÷ +5 V |
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Vset Input (positive analog command) |
0 ÷ +2.5 V |
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Imon Output |
0 ÷ +2.5 V |
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DVout/Vout (for ±5% Vin variations) |
<1.5 X 10-3 @ full scale |
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Maximum Output Current (Iout) |
100 µA @ ±2100 V |
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Power requirement |
<400 mW; |
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Efficiency |
∼ 60% @ Vout = 2100 V (-20° C ÷ +70° C) |
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Output Ripple (Full Load) |
Typical: 5mVpp; |
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Vout / Temperature coefficient |
< 60 ppm/ °C |
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Vset vs. Vout Integral Non Linearity |
< ±0.3% (-40° C ÷ +70° C) |
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Vmon vs. Vout Integral Non Linearity |
< ±0.3% (-40° C ÷ +70° C) |
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Protection |
Over current short circuit, sparks and humidity |
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