The leading supplier of cutting edge technology

PS300 Series - High Voltage Power Supply

PS350
  • +20 kV, -20 kV, +10 kV, -10 kV, ±5 kV, ±2.5 kV, ±1.25 kV supplies
  • 25 W output power
  • 1 volt resolution
  • 0.001 % regulation, 0.05 % accuracy
  • Dual polarity
  • Programmable limits and trips
  • 0.0015 % ripple
  • GPIB interface (opt.)
PS300 series specifications


PS350 Front Panel

PS350
Front Panel

The PS300 High Voltage Power Supply series consists of three efficient, microprocessor-controlled, switching DC power supplies capable of delivering 25 W of output power at voltages up to 5 kV. All models have 0.001 % regulation and 0.05 % accuracy, and the output voltage can be adjusted with 1 V resolution over the entire operating range.

All PS300 series supplies have rear-panel SHV connectors. Optional cables allow connection with standard high-voltage connectors (SHV or MHV). A three-position, high-voltage enable switch on the front panel prevents the high voltage from being turned on under computer control unless the switch has been manually armed. A highly visible red LED always indicates when the high voltage is on. Convenient front-panel LED displays indicate both the voltage and current delivered to the load at all times.
PS350 Rear Panel

PS350
Rear Panel

Limits and Trips

The PS300 high voltage power supplies have an adjustable voltage limit which prevents the high voltage from being inadvertently set above a safe level. An independent current limit lowers the voltage setting until the current drawn by the load does not exceed the limit setting. Additionally, a current trip may be set which turns off the high voltage when the current limit is exceeded. After a trip, the unit can be configured to either attempt to turn the high voltage back on, or to leave it off until a manual reset.

Adjustable Polarity

The output polarity of the PS300 High Voltage Power Supply series is set with a rear-panel switch. The polarity cannot be controlled via the computer interface and can only be changed while the unit is off. Output polarity is always displayed on the front panel with the voltage level.

PS300 Block Diagram

PS300 Block Diagram

Voltage and Current Monitors

Two rear-panel BNC connectors provide voltage and current monitoring capabilities. A 0 V to 10 V output corresponds to 0 % to 100 % of full scale. These outputs are capable of driving 10 mA and have a 1 Ω output impedance.

The voltage monitor output can also be configured as a voltage control input. In this mode, a 0 V to 10 V signal applied at the input will cause the output high voltage to vary between 0 % and 100 % of full scale. The output is updated at a rate of 16 Hz. Additionally, the bandwidth of the voltage control input is limited by the overall slew rate specification of the instrument (0 % to 100 % of full scale in less than 0.3 s under full load).

Stored Settings

All instrument settings are stored in non-volatile memory so that the instrument will remember its previous state when powered up. For safety, the high voltage is always initially turned off. Up to nine complete instrument configurations, including limit and trip settings, can be stored in memory.

Optional GPIB Interface

An optional GPIB interface allows control of all instrument functions except output polarity. The required common commands of the IEEE-488.2 standard are supported. The PS300 High Voltage Power Supply series can be configured to generate service requests (SRQ) in the event of limit or trip conditions.

PS300 Series Specifications

   
Model Output Voltage(±) Max.Current
PS310 0 to ±1.25 kV 20 mA
PS325 0 to ±2.5 kV 10 mA
PS350 0 to ±5 kV 5 mA
PS355 0 to -10 kV 1 mA
PS365 0 to +10 kV 1 mA
PS370 0 to -20 kV 0.5 mA
PS375 0 to +20 kV 0.5 mA
 
Voltage Output
Voltage set accuracy 0.01 % + 0.05 % of full scale
Voltage display accuracy Vset accuracy ±1 V, typ. (±2 V, max.)
Voltage resolution 1 V (set and display)
Voltage resettability 1 V
Voltage limit range 0 to 100 % of full scale
Voltage regulation 0.001 % for ±10 % line change
0.005 % for 100 % load change
Specifications apply for >0.5 % (full load) to >1 % (no load) of full scale voltage.
Output ripple (Vrms) 0.0015 % of full scale (typ.), 0.002 % of full scale (max.)
Current limit range 0 to 105 % of full scale
Trip current 10 µA (min.)
Trip response time <10 µs
Current set accuracy 0.01 % + 0.05 % of full scale
Current resolution 10 µA (PS310 and PS325)
1 µA (PS350))
Current display accuracy ±10 µA (typ.), ±20 µA (max.) (PS310 and PS325)
±1 µA (typ.), ±2 µA (max.) (PS350)
Stability 0.01 % per hr., <0.03 % per 8 hrs.
Temperature drift 50 ppm/°C, 0 °C to 50 °C (typ.)
Protection Arc and short circuit protected. Programmable voltage limit, current limit and current trip
Recovery time 12 ms for 40 % step change in load current (typ.)
Discharge time <6 s (to <1 % of full-scale voltage with no load, typ.)
 
Monitor Output
Output scale 0 to +10 V for 0 to full-scale output regardless of polarity
Current rating 10 mA (max.)
Output impedance <1 Ω
Accuracy 0.2 % of full scale
Update rate 8 Hz
 
External Voltage Set
Input scale 0 to +10 Volts for 0 to full-scale output regardless of polarity
Input impedance 1 MΩ
Accuracy 0.2 % of full-scale
Update rate 16 Hz
Output slew rate <0.3 s for 0 to full-scale under full load
 
Mechanical Specifications
HVconnector SHV male (Kings Type 1704-1)
Mating connector SHV female (Kings Type 1705-14)
Dimensions 8.1" × 3.5" × 16.0" (WHL)
Weight 8 lbs.
Power 50 W, 100/120/220/240 VAC, 50/60 Hz
Warranty One year parts and labor on defects in materials and workmanship