• Continuously variable
  • Electronically regulated
  • Fully solid state circuit
  • Low power consumption

Introduction 

Power supply, EHT-11 principle of operation is entirely different from conventional supplies, and thereby eliminating many drawbacks; bulky high voltage transformer, need of high voltage components and excessive heating of components etc., associated with them. This power supply consists of a stable power oscillator whose output is controlled by an input signal. The output of this oscillator is boosted with the help of a step-up transformer and then rectified and filtered. A portion of this output is compared with a high stability, temperature compensated reference and the error signal is used in the feedback path to control the oscillator’s output. There is a built-in protection against accidental overloading.

For high reliability, compactness and ruggedness, integrated circuits are extensively used along with a few discrete silicon devices. The components are mounted in a glass epoxy printed circuit card.

Applications

EHT-11 is designed to meet the power requirements of a broad range of radiation detectors: G.M. Counters, lonization Chambers, Scintillation Detectors, Photomultiplier Tubes and any application where a high voltage source with high degree of regulation and stability is required.

Specifications

Output 0-1500V continuously adjustable
Current 1mA (max.)
Polarity +ve or -ve, as required
Regulation ±0.05% for 0 to 1mA load
Stabilization ±0.02% for ±10% mains variation
Display 3½ digit, 7 segment LED DPM
Connection Output through a amphenol connector on the front panel
Protection Fully protected against overload and short circuit by current limiting technique
Power requitements 220V ±10%, 50Hz
Weight 5Kg
Dimensions 240mm X 390mm X 130mm
 
 

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