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102A - 1kJ/sec or 1kW DC

APP Note 500: Calculating Capacitor Charge Time
APP Note 502: Calculating AC Line Currents
APP Note 505: Charging units as Continuous Output DC  Supplies
APP Note 507: Charging Large Load Capacitors
APP Note 509: What is Regulation and Repeatability?
APP Note 513: Power Factor Correction
APP Note 517: Protection Against Voltage Reversal
Appn. Questionnaire

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ALE Model 500A
Programmable High Voltage Capacitor Charging and DC Power Suplies
Output Voltages: 0-1kV to 0-40kV at 500J/sec average power or 500W DC
Click here to request more ALE 500A Information

  • Overview
  • Technical Details
  • Technical Support

Product Overview and Models

The 500A Series is a Compact OEM style constant current capacitor charging or DC power supply with output voltages available from
to 0-40kV with fixed positive (POS) or negative (NEG) polarity, 110VAC or 220VAC single phase input, and optional Active PFC. All models feature medical safety approvals.


  Capacitor Charging Ratings   Continuous DC Ratings    
Model Number Output

Cap Charging

Cap Charging



DC Power

DC Current (milliAmps)



500A-1kV-POS 0-1,000   500 550 1,100   500 500  
500A-1.5kV-POS 0-1,500   500 550 730   500 330  
500A-2kV-POS 0-2,000   500 550 550   500 250  
500A-3kV-POS 0-3,000   500 550 365   500 166  
500A-4kV-POS 0-4,000   500 550 275   500 125  
500A-5kV-POS 0-5,000   500 550 220   500 100  
500A-6kV-POS 0-6,000   500 550 180   500 83  
500A-10kV-POS 0-10,000   500 550 110   500 50  
500A-15kV-POS 0-15,000   500 550 73   500 33  
500A-20kV-POS 0-20,000   500 550 55   500 25  
500A-30kV-POS 0-30,000   500 550 36   500 16  
500A-40kV-POS 0-40,000   500 550 27   500 12  


Ordering Information







Factory Options


- 20kV - POS - PFC
        NEG   LH

The ALE model 500A is an OEM style High Voltage Power Supply designed for operation in two modes. In the most common format it is a constant current Capacitor Charging Supply which will reliably charge HV capacitors and Pulse Forming Networks (PFN's). The 500A can also operate as a constant voltage, continuous output DC Power Supply with the addition of an external filter capacitor. The entire OEM series supplies employ ALE's patented parallel resonant inverter topology which results in superior pulse to pulse repeatability compared with conventional series resonant designs.

For more information about the 500A Power Supply Series, contact the TDK-Lambda Americas Programmable and High Voltage team directly at +1-732-795-4100 or online at -

A wide range of other TDK-Lambda Programmable and High Voltage power supplies can be viewed from the website:


AC Input
Input Voltage
(No PFC)
3.5A 5A
7A 10A

Average Charging Rate
500 J/s at rated Output Voltage.

Peak Charging Rate
550 J/s at rated Output Voltage.

Standard Voltage Ranges
1, 1.5, 2, 3, 4, 5, 6, 10, 15, 20, 30, 40 kV.
All models continuously variable from 10 to 100% of rated voltage output.
Linear to within 1% of full scale.
Accuracy 1% of rated.

Available as fixed Positive (POS) or Negative (NEG), Please Specify.

High Voltage Assembly
Voltage Medium Output Cable
1 to 6 kV Air Coax RG59
7 to 40 kV Oil 12AWG, HV Silicon Type DJ

Input Connector
VDE, UL, CSA, approved.

Power Factor
All Models 0.65 0.98

Better than 85%

Stored Energy
Less than 0.3 Joules all models.


0.2% per hour after 1 hour warm-up.

Pulse to Pulse Repeatability
+/- 0.2% to 300 Hz. For higher repetition rates, consult factory

Temperature Coefficient
100 PPM per °C

Ambient Temperature
Storage: -40 to +85 °C
Operating:-20 to +45 °C

90% Non-condensing

The power supply is protected against open circuits, short circuits, overloads and arcs.

Agency Approvals
Certified to meet UL 60601-1
TUV Certified to EN60601-1, IEC60601-1

Note For PFC Units
When high voltage is enabled using either the "HV Enable" Line or de-activation of the "Inhibit" Line, the power supply will reach normal operation mode (and therefore all other published specifications) within 50 milli-seconds.

Height: 5.56"(141mm)
Width: 5.75"(146mm)
Length: 14.2"(361mm)

Model Non PFC PFC
<6kV 8lbs/3.6kg 10lbs/4.5kg
>6kV 12lbs/5.5kg 14lbs/6.5kg
Click here for mechanical details
Shipping Details:
Packaged Size:
10"(0.25m) x 10"(0.25m) x 20"(0.5m)
Weight: 20lbs, 9kg

Accessories (included with unit)
HV Cable

1-6kV Models - 10ft long, RG59/U Coaxial with Amphenol MHV Plug Connector for power supply and cut at the user end.
Cable end connector - Amphenol 000-28000 HV Output connector - Amphenol 000-27025
7-40kV Models - 8ft long, DS2024 Silicone lead with proprietary connector
15 pin "D" plug mating control connector
Operating manual

Mounting Brackets

Remote Control
Via 15pin d-type connector on rear panel. Click here for details


Suffix-LH "Low Inhibit" - A + 10 to 15 volt (high) signal will allow power supply operation. A 0 to +1.5 (low) signal will inhibit the supply.
Suffix-EN "Low Enable" - A + 10 to 15 volt (high) signal will disable power supply operation. A 0 to +1.5 volt (low) signal will enable the supply.
Suffix-5V 0 to +5V programming = 0 to full scale output voltage (standard 0-10V)
Suffix-LP Latching Overload Protection.
Supply will latch off, requiring a reset if an overload condition occurs.
Suffix-DC Continuous DC output

What's in the Box
Power Supply
HV Output Cable Assembly
Mating Control Connector for Ribbon Cable

(TE Part 1658615-3)
Mounting brackets and hardware
User Manual CD
Test Data Sheet

All specifications subject to change without notice.

Factory Technical Support Contacts

High Voltage Products - 1000V and higher
All ALE models, 500A, 102A, 152A, 202A, 402, 802, LC1202, 203, 303, HV Systems
PHV and FLX-HV High Voltage DC Models
Support Hours 8am-5pm Eastern
Standard Time
Andy Tydeman - Email
Tel: (732) 795 4149
Fax: (732) 455 6026

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