The Instek GPP4323 4-Channel Programmable DC Power Supply, Ch1/Ch2 (32V/3A), Ch3 (5V/1A), Ch4 (15V/1A), 212W provides high program resolution (1mV/0.1mA) and read back resolution (0.1mV/0.1mA), as well as optimal low-ripple noise characteristics ≦350uVrms/≦2mArms and output transient recovery capability ≦50S. Independent output on-off switch is provided for each channel.

The GPP-4323 offers a variety of display modes, including single or multi-channel setting values, measurement values, and waveform displays. The Monitor function of this model allows users to set monitoring conditions according to requirements, sound alarms or stop output during the measurement process, and stop measurement and protect the customer's DUT. The GPP-4323 provides output recorder function, which records the voltage/current of the output process to the internal memory, and the result can be stored as a (*.REC) or (*.CSV) file, which can then be transferred to the USB flash drive. The stored *.CSV can be exported to the Excel to conduct the future analysis.

The intelligent temperature-controlled fan can adjust the speed according to the temperature of the power transistor so as to reduce unnecessary noise. The output value setting and the Sequence/Delay/Recorder functions provide 10 sets of internal memory for use, and can be loaded/stored using a USB flash drive. In addition to the standard RS-232, LAN and USB remote interfaces, this model also has an optional GPIB interface to facilitate different requirements. The commands of the GPP-4323 conform to SCPI requirements and are compatible with the commands of the GPD-X303S Series.

The CH1/CH2 of the GPP-4323 are designed with the load function. A single power supply can set one channel as the power output, and one channel for the load function to consume the power of the DUT so as to meet the basic charging and discharging test requirements for battery. Channel 1 and Channel 2 not only provide 32V/3A power output, but also feature built-in maximum 32V constant voltage load (CV), maximum 3.2A constant current load (CC) and maximum 1k constant resistance Ω load (CR) function.