Preen's new ADG-L series is a programmable DC power supply with high power density, low noise, and tight regulation. The combination of DSP and PWM technologies has enabled significant advances in stability and measurements. The ADG-L series includes fourteen models with 4kW, 8kW and 12kW maximum output powers and several Auto Range models to provide a higher output current at lower output voltage. With CV/CC/CP modes and its high voltage and high power features, the ADG-L series is an ideal DC power for applications on photovoltaic (PV), electric vehicle (EV), battery charge simulation, fuse, and contactors. With a full 12kW in a 3U package it is designed for simulations in product development and automatic test system and integration. Parallel configuration is available to achieve higher output level.

The ADG-L series is operated from the 5"intuitive touch screen or the rotary knob to quickly access measurements, setting parameters, and configurations. The DC power supply can also be controlled via RS-232, RS-485 and Analog standard remote interfaces or through optional Ethernet, USB, or GPIB interfaces. The built-in simulation function allows devices to be tested to voltage dropouts, spikes and other repetitive testing for voltage and current. This makes the ADG-L series ideal for various applications in renewable energy, EV, aerospace, DC/DC converter and electronic product markets.
   

ADG-L Panel Description

Auto Range Models

Comparing to conventional DC power supplies that provide the same rated current at all output voltage, the ADG-L's auto range models offer a wide operation region. It can generate a higher output current at lower output voltage, or a higher output voltage at lower output current. This feature is an ideal solution for both high current/low voltage and low voltage/high current DUT, and makes one unit to cover a wide range of applications to further save cost and space.
   

Intuitive Touch Screen and Rotary Knob

 

The ADG-L series employs 5"touch screen and rotary knob to provide intuitive and easy- to-use control and display. Users can quickly access output settings, measurements, sequences and system configurations from the touch screen. Sophisticated sequences can not only be set from the PC but also easily from the touch screen.
 

High Power Density: 12kW in 3U

Employing PWM technology and DSP-based control, Preen's ADG-L series DC power supply has 12kW available only in 3U package, and with parallel configuration, 24kW only has 6U height. The rack-mount enclosure is designed to accommodate a wide range of applications, especially for automatic test systems and integrations.
   

Free Control Software and Various Communication Interfaces

The ADG-L series can be controlled via the Preen Program to configure sophisticate sequences, save/recall STEPs, and generate test result reports. This intuitive control software makes remote programming no longer a difficult task.
 

The DC power supply is equipped with RS-232/RS-485 (MODBUS) for standard interfaces. Optional Ethernet, USB, GPIB and RS-232/RS-485 (SCPI) are also available for better integrations with automatic test systems and the needs of industry 4.0.

Preen's ADG-L series has 14 different models with three output power levels, 4kW, 8kW and 12kW. With up to 1000V output voltage and multiple Auto Range models, the ADG-L series covers a wide range of applications including electric vehicle, photovoltaic, battery, DC/DC converters and electronic products.
   

Programming Sequences and Simulations

The built-in programming function of the ADG-L series has 99 STEPs for each of the 5 GROUPs. Users can set each STEP's output voltage, output current and time to generate consecutive voltage/current changes or set different rise/ fall time. This built-in function and the ADG-L's control software allow users to create complex DC waveform with sophisticated coding. Making programming the DC power supply an easy task.
 

Master/Slave Parallel Operation

Through a simple and fast setup, the ADG-L series can generate higher power by connecting identical models in a master/slave parallel operation. Users only need to control the master unit for multiple units’ setup and readbacks. The master unit automatically calculates the parameters and downloads data to slave units to make programming easier and current sharing more precise.
 
Wide Range of Applications

• Hybrid-Electric/Electric Vehicle (HEV/EV) and related components
• Electroplating and water treatment
• DC/DC & DC/AC converters
• Circuit breakers, contactors and fuses
• Rail transport components
• Renewable Energy

Remote Sensing

In many laboratories or factories, the DC power supply is located a certain distance away from the DUT, and this sometimes causes voltage drop due to the resistance of the wires. The ADG-L is equipped with remote sensing to compensate voltage drops and provide a stable output voltage, and it allows users to have the desired voltage appear at DUT.
   

Device Protection

The ADG-L series has multiple levels of protection to safeguard you device. These include over-voltage, over-current, over-power, over-temperature, and input under/over- voltage to shut down the power supply output to prevent fault conditions and further damages.
 

Error Log for Easy Analysis

The EVENT function of the ADG-L series provides an error log to record critical errors up to 999 items. The log includes date, time and error types to help users better analyze fault conditions.
 

Multiple Ways of AC Input Connection

Conventional DC power supplies have only one type of AC input range and one way of input wirings. Different from most of high power DC power supply, the ADG-L series’ 8kW and 12kW models offer more than two ways of input connections. For example, the 8kW models can have single phase or three phase input without factory modifications. This feature provides flexibility and convenience for users to operate the unit in different environments.
 

Industry-leading Performance

The ADG-L series is designed for low ripple, high accuracy and tight regulation for simulating different DC voltages. With fast transient response and rise time, the ADG-L DC sources are ideal to test DUT behavior to voltage sags, dropouts, ON/OFF tests and complex DC waveforms.

0.99 Input Power Factor

The ADG-L series is equipped with active Power Factor Corrector (PFC) to enhance input PF up to industry-leading 0.99, which helps reduce the interference on the grid.

1. Effectively increase real power (P) and reduce reactive power (Q) for better energy saving and operation cost.
2. Able to suppress peak current and power loss to have lower harmonic distortions.
3. Reduce input current to have compact and high power density DC sources.
4. Save more energy and lower carbon footprint for better environment.
5. The ADG-L series (with PFC) v.s. Conventional DC Sources (no PFC) refer to the chart on the right

For a 12kW ADG-L model with 3-phase 4-wire 220/380V input, when power factor (PF) increases from 0.7 to 0.99 and efficiency improves from 0.8 to 0.9, input power (apparent power) can effectively reduce 40% for energy saving.