As the trend for global energy conservation and carbon emission reduction leads the evolution of new energy vehicle electrical systems, the world’s major car manufacturers have proposed 48V power system and LV148 regulatory standards for testing new vehicles. Comparing to the previous 12V power system, 48V power system has higher conversion efficiency and increased stable start-stop performance. In addition, the server power supply structure is also moving from conventional 12V to 48V in order to optimize the overall system power conversion efficiency.
(Fig.) Wide operating region with constant power
Chroma launches a new 100V DC power supply, Model 62150H-100P, with auto-ranging output feature to support 40V/50V/60V/…/100V voltage ranges and output up to 15kW full power. It is suitable for testing products with different specifications such as the 48V new energy vehicles from 0V to 60V and the 48V architecture for server power and telecom power. The DC power supply is able to output the power from 10kW up to 150kW when setup in parallel under master/slave structure. It has active current sharing and fast transient response functions with active PFC to put low energy consumption and high conversion efficiency into effect to save energy.
High Accuracy and High Stability
The voltage control accuracy on the front panel and through the communication interface is up to 0.05% allowing users to set the required output. The stability of constant voltage and current is 0.005% for 8 hours operating. The temperature coefficient of drift is 0.005%/°C that provides an accurate and stable power source steadily even after long hours of operation.
Voltage/Current Slew Rate Control
The DC power supply’s voltage slew rate control is from 0.001V/ms to 5V/ms and can integrate with an automatic programming mode to meet the diversified needs of specific applications such as automotive electronic systems. Chroma incorporates the ISO 16750-2, VW 80000 and GS 95024-2 international automotive electronics standards into the GUI, Softpanel, to help users speed up the development and testing task.
(Fig.) ISO 16750-2 Starting Profile
62150H-100P Programmable DC Power Supply for
Large Power Application
Chroma’s newly launched 62000L Series programmable DC power supplies provide low ripple, low noise linear performance and a fast transient response in a lightweight, compact, and cost effective package.
As Chroma’s next generation of power supplies, the 62000L Series delivers pure and stable DC power as well as built-in features designed to meet the stringent requirements of next generation power electronics including automotive power electronics MCU/ECU, communication electronic parts, and semiconductor IC drivers.
Auto-ranging allows for freely adjusting the voltage and current. This feature eliminates the need to manually select the optimum range allowing all of the power to be available across all of the voltage and current settings.
Fast transient response makes the output voltage that changed due to load characteristics return to a stable supply of power in microsecond response speed. Take the 62010L-36-7 model for example, when the output current changes from half load to full load at the speed of 1A/μs, the voltage change of the actual output can return to 15mV within 30μs.
Low noise input power with pure quality protects the precision load or UUT from the interference of heavy noise. For example, the 62010L-36-7 output voltage noise is lower than 2mVp-p (20~20MHz) under the maximum rated current and maximum output power.
The auto sequencing programming function built into the 62000L Series allows the user to define and edit the output waveforms with 8 steps per cycle.
Conventional linear power supplies are cumbersome due to the frequency design and require more space for ventilation. Chroma simplified the design of the hardware architecture resulting in a better handling compact, lightweight design which is safer to stack.
The brand new 62000L Series programmable DC power supplies features an affordable price, high quality output specifications, practical functions, and standard USB and GPIB communication interfaces making this an excellent choice for testing small power and precision products.
Chroma ATE Inc.
Programmable DC power sources
Chroma’s 62000P series of programmable DC power sources allows devices to be verified under a wide range of voltage dropouts, spikes and other voltage variations making the P-series an ideal choice for production and DVT of products used on mobile platforms or which will experience voltage interrupts. Applications include products designed for use on ships, cars, planes and other applications with variable or unstable input power.
Due to their constant power operating envelope the P-series power supplies are uniquely suited for test applications requiring a wide range of high voltage/low current and low voltage/high current stimulus thereby reducing the number of supplies needed in typical applications. The 62000P Series also includes built in 16 bit readback capability for accurate input voltage and current readings. This means ATE systems no longer need complex shunt/multiplexers to make accurate pass/fail readings of the UUT’s input parameters. These instruments also include I/O ports providing 8 bit TTLs, DC-ON, fault output signal and remote inhibit as well as an output trigger signal for system timing measurements.
12 models ranging from 600W to 5000W, up to 120A and up to 600V.
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