EC1000SA (1kVA AC, 1kVA DC Programmable AC/DC Power Source)

Brand: NF
Model Series: EC Series

About Product

The NF EC Series Programmable AC/DC Power Sources provide not only a stable power supply, but also the necessary functions for power supply testing such as measurement, current limiter and sequence functions. They cover various applications as a power source for testing a wide range of fields such as electronic components, automobiles, home appliances, and as a stabilized power source in laboratories as well.

Product Features

  • Display screen: 7” Color TFT LCD display with backlight
  • Output power
    • AC output
      • EC750SA: 750VA
      • EC1000SA: 1kVA for input voltage AC180V-AC250V and 750VA for input voltage AC100V to AC180V
    • DC output
      • EC750SA: 750W
      • EC1000SA: 1kW for input voltage AC180V-250V and 750W for input voltage AC100V to AC180V
  • Maximum output voltage: 310Vrms
  • Hybrid Power Control – Technology of achieving stable outputs
    • The Hybrid Power Control integrates the negative feedback control (analog control technology), which is NF’s core technology, and intelligent digital control technology. Analog technology is provided when wide-band, high response is required, and digital technology is provided for flexible control according to load condition. The Hybrid Power Control achieves highly stable and robust output by taking full advantage of both analog and digital characteristics
  • Operation mode
    • Eight output modes, combining two operation modes and four signal source modes can be set. The most appropriate mode for an application can be selected
      • Operation mode: Alternating current (AC), direct current (AC+DC)
      • Signal source modes: Internal (INT), external (EXT), internal/external (ADD), external synchronization (SYNC)
  • A variety of outputs exists. With AC, full-power output is also available for DC. In the AC+DC mode, an AC wave (sine wave, square wave, or arbitrary waveform) can be superimposed on the DC output
    • AC/DC modes:AC, AC + DC
    • AC output configurations
      • AC output voltage 100V range: 0V to 155.0V (Resolution 0.1V and Maximum Output Current 10A)
      • AC output voltage 200V range: 0V to 310.0V (Resolution 0.1V and Maximum Output Current 5A)
      • Output frequency range (Internal, internal/external): 1Hz to 550Hz (Resolution 0.1Hz)
    • DC output range
      • 100V range: -220V to +220V (Resolution 0.1V and Maximum Output Current 10A)
      • 200V range: -440V to +440V (Resolution 0.1V and Maximum Output Current 5A)
  • Versatile interfaces: RS232 and USBare provided as standard
  • External control I/O
    • Control input: Output on/off, sequence control, memory recall
    • Status output: Power on/off, output on/off, protection operation, limiter operation, output range, sequence
  • External signal input
    • EXT: Amplifies external signal, used as a power amplifier
    • SYNC: Synchronization of signal source frequency with external signals
    • ADD: Addition of external signals to internal signals
  • The phase can be set from 0 to 359.9 degrees at output on

Product Functions

  • Various output waveforms
    • EC Series support various power tests using sequence and arbitrary waveform such as instantaneous power failure for 1-cycle, instantaneous power failure for phase of 0° to 90°, instantaneous power failure including phase continuity and discontinuity, harmonic current wave and half-wave rectification (See photo section)
  • Maximum output peak current
    • A peak current up to four times as large as the maximum current (RMS values) can be output at the rated output voltage. The EC Series also supports capacitor input load (up to crest factor 4)
  • Limiter function
    • Output current limits can be set with positive/negative values and RMS values. In the evaluation of a prototype, this function is useful for protection when an abnormal current is caused by abnormal operation of the load
  • Protection function
    • The EC Series have a built-in function for protecting the power source itself if a problem occurs due to issues such as output overvoltage or overcurrent, power unit trouble, internal control problems. If a problem occurs, it is displayed on the panel and output is turned off
  • Measurement function
    • The EC Series are equipped with high accuracy measurement functions for measuring synchronization frequencies, load power factors and even the harmonic currents, in addition to the voltage, current and output power. Setting values and measurement values are simultaneously displayed on large-screen display (See photo section)
    • Parameters to be measured
      • Output voltage (effective, DC average, and peak values)
      • Output current (effective value, DC average value, peak value, and peak value hold)
      • Output power (active, apparent, and reactive power)
      • Frequency (at external synchronization)
      • Load power factor
      • Load crest factor (CF)
      • Output harmonic current (fundamental wave: 50/60 Hz, up to the 40th order)
  • Sequence function
    • Programming of various test patterns such as test repetition, combinations of complex test condition and long-term testing enable automated test sequences. Power source tests for each export destination can be performed efficiently (See photo section)
    • Overview of sequence function (See photo section)
      • Number of steps: Up to 255 (within one sequence), 0.1ms/step (minimum)
      • Parameters: DC voltage, AC voltage, frequency, waveform, 2-bit step synchronization output
  • Setting range limit function
    • Limits the setting range for the output voltage and frequency
  • Memory function
    • Save and recall function. Basic settings:  30
  • Control software
    • The control software enables basic parameter settings, data logging, arbitrary wave editing/transfer and sequence editing/ control. It supports automation of measurement data analysis in product development and of various tests in production lines (See photo section)
      • Sequence: Edit, execute and save a series of output variation pattern
      • Arbitrary waveform: Create and edit waveforms
      • Logging: Read and save measured values

Product Application

  • Max output voltage 310V for LED driver input voltage test
    • Support for LED driver input voltage of AC90V to AC305V
  • AC+DC mode for evaluation of DC-DC converter
    • For noise superimposition test and ripple current test
  • DC offset adjustment for driving transformers and inductive loads
    • Prevention of magnetic saturation by adjusting DC offset voltage to zero

Standard Accessories

  1. RS-232 Interface
  2. USB Interface
  3. Control Software
  4. Operation Manual
  5. Power Cable

Product Options

  • None

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Our Company

Miko, established in 1980, is a leading instrumentation distributor in Hong Kong and China.

Over the years, we have been fully engaged in the sales and marketing of electronic T&M instruments in the territory. Our market sector coverage includes telecommunication, power, data communication, audio, broadcasting and education.