SG-7040A Series

Power Supply Voltage Fluctuation Simulator SG-7040A series



The SG-7040A Series simulates power supply voltage fluctuation to test automotive electronics. Connections of automotive electronics are not limited to +B, but connections are also done to ACC and IG.

In response to testing needs for synchronized, multi-channel fluctuation simulations, the SG-7040A Series can be configured with one to four sequential oscillators and with the relevant number of high speed bipolar power amplifiers to carry out highly accurate and fast response tests on multi-channel basis.




  • A waveform operation circuit is included for each oscillation channel making possible high resolution, highly accurate waveform output.
  • Software control (USB) allows for simple and faithful reproduction of various events (complex, extended duration) of DC fluctuation output waveforms.
  • Performs voltage fluctuation simulations on a maximum of four channels (variations in synchronization guaranteed at or less than 1μs).
  • Reproduces accurately waveform acquired with an oscilloscope (CSV),
  • Fully automated testing with the goal of reducing test man-hours. 


The SG-7040A system is primarily comprised of the following three components: multi-sequential oscillator, bipolar power amplifier and arbitrary waveform creation software. The required number of channels of multi-sequential oscillator shall be configured according to test requirements and appropriate bipolar power amplifiers shall be selected according to the current requirement for each line of the device under test.


1. Multi-sequential Oscillator  SG-7040A

  • Modular construction for a maximum of four channels
  • Arbitrary waveform creation (DC, ramp wave, sine wave, exponential wave, frequency modulation, amplitude modulation)
  • Waveform sequence creation


2. Arbitrary Waveform Creation Software
The arbitrary waveform creation software easily creates complicated waveforms with repeated voltage and time ramping with its superb GUI.


3. Bipolar Power Source
High-speed bipolar power source is selected according to the DUT power rating.



Muti-sequential Oscillator SG-7040A 

Parameters Specifications
Channel 1channel - 4channels (Max.4 channels)
Trigger output for Oscilloscope BNC connector/ 0-5 Active low
Set the desired point as the trigger point with the waveform creation software, and monitor generated waveforms with the external trigger function of the scope
Waveform generating method Sampling waveform output based on partial waveform memory and DSP circuit output CSV data
Output voltage 0.00 to ±6.00V
Output current 5mA max.
Output impedance 50 ohm
Resolution (Setting) 0.01V
Resolution (Output) 0.732 mV
Offset voltage ±6.0 V
Frequency response characteristics 150kHz max (±6.00V amplitude sine wave)
150kHz max (±6.00V amplitude rectangular wave)
Frequency accuracy ±20ns+50ppm (over the entire frequency range)
Rise time/Fall time Less than 100ns (0±1.00V swing)
Slew rate 20V/µs
Synchronization accuracy Adjustable up to 1,000,000µs, at a step of 1µs to compensate differences in response time of the amplifiers connected
Synchronization accuracy of less than 1µs at the outputs of the amplifiers connected
Calibration output 1kHz 1V-p-p (for test)
PC interface USB1.1
Dimensions Approximately (W)430 x (D)400 x (H)200 mm
Weight Approximately 10 kg


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