TTi – Thurlby Thandar Instruments

Designs and manufactures advanced electronic test and measurement equipment. Products they make include Power Supplies, Programmable power supply, Function generator, Arbitrary generator, Pulse generators, RF spectrum analyzer, DMM, LCR Meter and harmonic analyzers.

TTi – Thurlby Thandar Instruments

The LD400 is an inexpensive 400 watt electronic load which is suitable for testing and characterising a wide variety of dc power sources.

LD400 – DC Electronic Load – TTi

Its wide voltage/current range, multiple operating modes and built-in transient generator give it the versatility to offer test solutions from the design laboratory through to the component test area.

LD400 - DC Electronic Load - TTi

The LD400 can operate at voltages below 500mV for currents up to 10 amps. At higher currents the fixed minimum resistance (typically better than 25milliOhms) gradually raises the minimum operating voltage, but it remains below 1 volt up to 40 amps and below 2 volts up to 80 amps.

Aim and Thurlby Thandar Instruments,
Glebe Road, Huntingdon, Cambridgeshire PE29 7DR  England (United Kingdom)

PPM – Precision and Custom Instruments

Designs and manufactures rugged, precision electronic instruments for field, laboratory and manufacturing/production test. Specialized Instruments Include Resistance Measurement, Metrology & Calibration, Electronic Loads, Electrical Safety Test System and Multi Channel Voltage.

(Update – Kepco and Tegam now Manufacture and market the PPM Range of Instruments and Equipment)

PPM – Precision and Custom Instruments

BOP high speed power operational amplifiers

BOP are high speed power operational amplifiers that can be used to provide dynamically agile voltage for test and simulation. They are not general purpose power supplies. By the nature of the bipolar high speed design, they do not have any energy-storage noise discriminating output capacitors.

Electronic Load and Power Supplies -Kepco

The Model R1L-C is a Ground Resistance Ohmmeter designed to measure grounding system resistance as well as soil resistivity, over ranges from 2 Ω to 20 kΩ full scale.

Ground Resistance Ohmmeter

Ground Resistance Ohmmeter – Tegam

AMETEK Programmable Power

Elgar, Sorensen and Cailifornia Instruments Products. A wide range Electronic Loads are available from 75-1800W with both DC and AC input in benchtop, modular and standalone form factors. Other products are DC Power supplies AC Power Sources, Modular AC/DC Units. Services like Compliance Testing and Custom Products.

AMETEK Programmable Power

SLM Family Electronic Loads

SLM Family Electronic Loads The SLM family includes 11 models of fully programmable, single input AC or DC modular electronic loads. DC models are offered to test power supplies, battery chargers, battery discharge, power supply transient response and integration into ATE systems. AC models are ideal to test low power inverters.

SL series Electronic Loads – Sorensen

The DC models support operation in Constant Current, Constant Voltage, Constant Resistance or Constant Power mode as well as a short simulation. Engineers have ultimate control of current waveforms by using either the analog input or CC dynamic mode. An analog input (single input DC models) allows arbitrary current waveforms up to 20kHz with an external 0-10V signal……..

AMETEK Programmable Power, Inc.
9250 Brown Deer Road, San Diego, CA 92121, USA.

NH Research Power Supply & Test Systems

Designs and manufactures power-electronics test instruments and automatic test systems. Applications typically involve the final test of power conversion products where test equipment performance, reliability and support.

Programmable AC Electronic Loads - NH Research

NH Research Power Supply & Test Systems

Products Include solutions for DC-DC converter testing, AC-DC supplies, VXIbus based products and a universal UPS test system. DC and AC electronic loads of various capacities can be configured too.

Programmable AC Electronic Loads – NH Research

Features Include

  • 3 kW / 30 A modules expandable to 180 kW
  • Power and crest-factor programmability
  • 12 built-in, high-accuracy measurements
  • Voltage 50 to 350 V
  • Current 30 A per 3 kW module
  • Frequency 45 to 440 Hz