The GPP-x323 series DC Power Supply from the GW Instek brand, distributed by SCMA, is a multi-output power supply designed to efficiently meet electronic testing requirements. With its standout feature of Power Output and Sink Test functionality, this tool not only serves as an ordinary power source but also functions as an Electronic Load.
The GPP-x323 series multi-output power supply offers more than just high-resolution readings (0.1mV/0.1mA) and transient response time of ≦50µs; it also allows channel 1 and channel 2 outputs to be switched to inputs for measuring the energy consumption of various devices.
The GPP-x323 can simulate battery usage while charging the battery simultaneously. The energy consumption simulation in an electronic system can be set to sync with the GPP-x323 on channel 2, setting voltage and current output according to battery charging specifications for channel 1 so that channel 1 functions as a battery charger.
Power Output and Sink Test Testing
The Power Output and Sink Test function is a key feature that helps the GPP-x323 stand out for complex testing, especially in simulating the interaction between power supply and energy consumption.
1. Battery Charging and Discharging Simulation (Charging and Discharging Test)
GPP-x323 can simulate both charging (power output) and discharging (current sink/load) of a battery within one unit without needing external electronic load devices:
- Charging Setup (Power Output): Set Channel 1 as the power source by configuring the output voltage and current according to the battery's charging requirements (serves to charge DUT/battery)
- Discharging Setup (Current Sink/Load): Set Channel 2 in Current Sink mode by setting the current according to the energy consumption of electronic devices connected to the battery (serves to draw current from DUT/battery)
This allows users to conduct tests in limited spaces and reduce testing equipment costs.
2. DC-DC Converter Testing
The function can be used for testing devices that convert direct current voltage into another direct current voltage (DC-DC Converter):
- Supply Input: Use one channel as the input power supply to the DC-DC Converter (DUT)
- Simulate Load: Use another channel for load function (Load Function) to simulate loads connected to the output of the DC-DC Converter to evaluate conversion efficiency under various loading conditions
The load function of the GPP-x323 supports operation in constant voltage (CV), constant current (CC), and constant resistance (CR) modes up to 32V/3.2A/1k$\Omega$.
GPP-x323 can test battery charging and discharging without connecting to electronic loads, which helps reduce testing space and equipment costs.
Users can adjust the Sequential Output function according to DUT testing requirements so that Channel 1 creates sequential voltage output to DUT, and set Channel 2 as a load for DUT during testing. The minimum test time can be set at 1 second based on DUT load characteristics, such as DC-DC Converter tests.
Models of the GPP-x323 Series Power Supply
- GPP-1326 32V /6A /1 Channel
- GPP-2323 32V /3A /2 Channels
- GPP-3323 32V /3A /2 Channels and 2.5V, 3.3V, 5V /5A /1 Channel
- GPP-4323 32V /3A /2 Channels, 5V /1A /1 Channel and 15V /1A /1 Channel
Features of the GPP-x323 Series Power Supply
- 4.3-inch TFT LCD display
- The screen supports setting, measuring, and displaying output waveform
- Loading Function (CC, CV, CR Mode)
- Precision Setting: 1mV / 0.1mA; Reading Precision: 0.1mV / 0.1mA
- Low Ripple Noise: ≦350uVrms/ ≦2mArms
- Transient Response Time: ≦50uS
- Hardware Over Voltage Protection / Over Current Protection / Over Temperature Protection
- Delay Function / Output Monitoring Function / Output Recorder Function
- Smart temperature-controlled fan reduces noise efficiently
- Sequential Output Function and Built-in 8 Template Waveforms
- The result recording function records output voltage and current parameter values within 1 second
- Provides 10 Sets of Memory for Each Sequence/Delay/Recorder/Panel Setting Condition
- GPP-3323 supports USB (Type A) Output
- Standards: RS-232, USB, Ext I / O; Additional Orders: LAN, GPIB + LAN
- Circuit switching between series and parallel can be done without external wiring for user convenience
- Data recording function records output voltage and current values which can be transferred via USB for further analysis
