Everything to Know About LPS Series DC Power Supplies

1
Everything to Know About LPS Series DC Power
Supplies
2
1. What is an LPS Series DC Power Supplies

• The LPS series dc power supplies are intended for
  use in semiconductor equipment, as well as OEM
  and industrial applications.
• They come in power levels ranging from 1,000 to
  13,500 Watts and can be used in constant current
  or constant voltage applications.
• Heater, filament, and magnet supply, as well as
  test and burn-in applications, are all common
  applications. For higher power, all models can be
  paralleled, and bespoke configurations are
  available.

3
2. Devices Limiting Current Delivered to the Load

• Even if they don't have one of the three ways to
  limit power delivery stated above, power supplies
  with external current limiting devices can be
  categorized as LPS. If a power supply uses an
  over-current protection mechanism (such as a fuse
  or circuit breaker) to suitably limit the current
  available to be provided to the load, it can be
  certified as conforming to LPS.
• A fuse or a non-adjustable, non-auto resetting
  electromechanical device must be used to limit
  current (i.e. a circuit breaker).
• With a current equal to 210 percent of the
  current specified in the regulations, the fuses
  or circuit breakers must break the circuit within
  120 seconds.

4
3. LPS Certification and Labeling

• Compliance with LPS standards is often documented
  in the power supply's Certification Body (CB)
  Scheme report, which includes test findings from
  safety organizations like as UL, CSA, or TUV.
• Though most LPS compatible devices from CUI will
  have the LPS mark, as illustrated below, marking
  "LPS" on the power supply label is optional.

5
THANKS