Kikusui PFX2000 Series, Operation Manual, Page: 12 / 104

P-2 Preface PFX2000
Features
Charge/discharge power supply unit
•
Pulse charge function
Provides pulse charge mode that allows sophisticated charger simulation and
research and development of various charge methods.
• Temperature measurement function
Equipped with a simpli fi ed temperature measurement function using a ther-
mistor as a temperature sensing element. This enables temperature measurement
on each channel. In addition, you can set OTP (overtemperature protection) as a
protection function as well as specify dT/dt (temperature increase per unit time)
and MaxTemp (maximum temperature) as charge cutoff conditions.
• Charge/discharge power supply units replaceable without shutting
down the power to the frame
When in STANDBY status, you can switch charge/discharge power supply units
without having to shut down the power to the unit frame.
• Battery voltage detection terminals of high input resistance
The battery voltage detection terminals have high input resistance achieving
extremely small leakage currents. This prevents batteries from being discharged
during rest.
• Reliability for long continuous operation
MOSFET is used for switching between charge, discharge, and rest securing
reliability for long continuous operations.
•
Versatile charge/discharge cut off conditions
Allows you to specify voltage, time, temperature, and other parameters for the
charge cutoff and/or discharge cutoff conditions.
• Improved system reliability
Provides a variety of protection functions, including OVP (overvoltage (over-
charge) protection), UVP (undervoltage (overdischarge) protection), and OHP
(overheat protection), and a watchdog timer (for system monitoring) to improve
system reliability. Especially for OVP and UVP, double protection through soft-
ware protection and hardware protection is provided.
• High precision measurements
Adopts the 24-bit A/D converter for measuring voltage and current enabling
high-precision measurements. In addition, the built-in reference voltage circuit
with temperature control secures high stability.
In pulse charge/discharge, generation of complicated current waveforms, volt-
age measurement at arbitrary points, and measurement of pulse current are pos-
sible by exploiting the use of the 16-bit D/A converter and high-speed A/D
converter.
• Two independent channels on a single unit (PFX2011 only)
The two channels are completely independent. You can set different test condi-
tions to each channel.
•
Power regeneration function (PFX2021 only)
Equipped with a regeneration function that uses the power obtained from an
internal loss for operation, if the internal loss reaches a certain level during the
discharge test. Contributes to the downsizing of the system, saving of power,
and reduction of waste heat.
• Faithfully measures the average pulse current (PFX2021 only)
Equipped a V/F converter dedicated to measuring average current. The transient