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HC Series

HC Series

100W Fast Polarity Switching Modules

HC010R and HC020R

Application: MALDI Mass spectrometers, Nuclear instrumentation, capillary electrophoresis

  • ±10kV and ±20kV types
  • Fast solid state polarity switching
  • Remote voltage programming
  • High Stability, temp-co < 25ppm
  • Voltage monitor & current monitor
  • Flashover & short circuit protected

This range of high performance 100W high voltage power supplies has been specifically designed for applications where a remotely switchable polarity is required. This compact converter module employs solid state switching techniques allowing for fast polarity reversal whilst maintaining excellent line and load regulation. These modules are designed to operate from a dc supply of 24V (nominal) and provide an accurately controlled high voltage output. The use of high stability components within the feedback system ensures a low temperature coefficient and good long & short term drift making the HC series ideal for use in MALDI time of flight mass spectrometry equipment with pulsed load requirements. The output voltage may be controlled from 50V to maximum (10 or 20kV) of either polarity by means of an external control voltage (0 to +10V). Monitoring of output voltage & current provided.

Electrical Specification
Unit Type Output Voltage Output Current Ripple (pk-pk) Temp-Co (°C)
HC010RAA050 ±10kV 10mA 100ppm 50ppm
HC020RAA050 ±20kV 5mA 100ppm 50ppm
HC0XXRAA025 As above for 25ppm equivalents 25ppm
HC0XXRPR0XX As above with potentiometer & reference fitted
Input +24 volt dc ±10% <6A. 0V input common to HV return and chassis. For full power operation, 24V
input should use pins 2 & 4 in parallel and pins 5 & 10 in parallel.
Output, Voltage / Current / Ripple See table above.
Line regulation <10ppm for a 1V change in input voltage.
Load Regulation <10ppm for zero to full load.
Drift (after 1 hour warm up) <100ppm per hour, <200ppm per 8 hours
Protection Current limit to 110% (typ) auto recovery. Protected against intermittent flashover to ground
Control of Output True differential analogue input of zero to 10V dc varies output from zero to maximum
+Ve input (Pin 7) R=100k, input range: -1V to +10V, with respect to ground
-Ve input (Pin 11) R=100k, input range: +1V to -10V, with respect to ground
Output slew rate limit: Linear ramp 500mS / 10kV (faster rate available to special order)
Polarity control (Pin 8) 8) Negative = High (>2.5V) or open circuit. Positive = Low (<0.8V).
Polarity Change Time <250mS. Between maximum rated output to maximum rated output of the opposite polarity.
High Voltage Inhibit (Pin 6) Low (<0.8V) = high voltage OFF. High (>4V or open circuit) = high voltage ON (10k pull-up to +5V).
Voltage Monitor (Pin 3) Zero to +10V ±2% for zero to maximum (Z= 10k).
Current Monitor (Pin 1) Zero to +10V ±2% for zero to maximum (Z= 10k).
Mechanical Specification
Dimensions 240 x 216 x 85 mm (9.45” x 8.5” x 3.35”)
Weight 3.8kg (8.3 lb) approximately
Mounting Centres 230.3 x 175.6 mm (9.067” x 6.9”) 4 off M4 bushes
Input / Control 12 way 0.2” Molex connector
Output Flying lead, red UL3239 screened 30kV cable, 1m long