These power supplies are intended to power ion guns at voltages up to +20 kV. They include an isolated heater supply joined to the anode together with a separately controllable focus supply. They are based on the standard HP series (data sheet refers) with the frequency of the additional heater supply synchronised to the two high voltage oscillators.
All outputs are controllable by 0 to +10V signals & monitor signals are provided for anode voltage, focus voltage, heater current & anode current. They can be supplied with additional voltage outputs tapped off the main anode supply (to order).
|Unit Type||Anode Voltage||Focus Voltage||Heater
(common to anode)
|IG005PAA300||+25V to +5 kV at 100 uA||+25V to +5 kV at 100 uA||0.8 to 2.5 Amps at 8V|
|IG010PAA300||+50V to +10 kV AT 100 uA||+50V to +10 kV AT 100 uA||0.8 to 2.5 Amps at 8V|
|IG020PAA300||+100V to +20 kV at 100 uA||+100V to +20 kV at 100 uA||0.8 to 2.5 Amps at 8V|
|Input voltage||24V d.c. ±1V at 1.8 amp maximum.|
|Output voltages||Anode, Focus & Heater (heater voltage floats on anode potential).|
|Ripple||Anode & Focus 0.1% peak to peak, Heater 1V peak to peak max.|
|Control (all outputs)||0 to +10 volt gives 0 to maximum, ±5%|
|Load regulation||Better than 1% for a 10% change in resistance.|
|Line regulation||Better than 1% for 1V change in input voltage.|
|Output accuracy||Better than ±5% of full scale (all outputs).|
<+1.5V - Heater on
Anode & Focus:
<+1.5V - Outputs slow rise to maximum
|Monitors||Anode voltage 0 to +5V represents 0 to max. kV.
Focus voltage 0 to +5V represents 0 to max. kV.
Anode current 0 to +5V represents 0 to Heater current 0 to +5V represents 0 to
|Accuracy of readbacks||Better than ±5%.|
|Temperature Co-efficient||<300 ppm/°C (Anode & focus), 1% per °C (Heater).|
|Operating Temperature||0 °C to +45 °C.|
|Size||215 mm x 200 mm x 47 mm.|
|Outputs||By flying lead, length 1 meter.|
|Input Connector:||12 pin Molex.|