致茂 CHROMA 63208 可编程直流电子负载。

用途：用于直流电源、电力电子设备及组件测试，像开关模式整流器、不间断电源、电池和燃料电池等大功率待测物测试。

技术原理：内置数字信号微处理器，通过模拟不同负载特性消耗电能，采用闭环设计控制功率晶体，实现高精度负载控制。利用 15 位 A/D 转换器精准测量电压、电流、功率等参数。

性能：功率 15.6kW，电压最高 80V，电流 600A。有定电流、定电阻、定电压、定功率 4 种负载模式。测量精度为电压 0.05%+0.05% F.S.、电流 0.1%+0.1% F.S.、功率 0.3%+0.3% F.S.。支持主从接口控制，可多组负载并联同步拉载（达 93.6KW），动态负载模拟达 20kHz，电流上升下降斜率可编程至 25A/μs。具备过功率、过电流、过温度、过电压及正负极反向保护与告警功能，配备 GPIB、RS - 232 等控制接口 。

Product Name: CHROMA 63208 Programmable DC Electronic Load.

Purpose: It is used for testing DC power supplies, power electronic devices and components, such as high - power Unit Under Test (UUT) like switch - mode rectifiers, uninterruptible power supplies, batteries and fuel cells.

Technical Principle: It has a built - in digital signal microprocessor. By simulating different load characteristics, it consumes electrical energy. It adopts a closed - loop design to control power transistors to achieve high - precision load control. A 15 - bit A/D converter is used to accurately measure parameters such as voltage, current and power.

Performance: The power is 15.6kW, the maximum voltage is 80V, and the current is 600A. There are 4 load modes: constant current, constant resistance, constant voltage and constant power. The measurement accuracy is 0.05%+0.05%F.S. for voltage, 0.1%+0.1%F.S. for current and 0.3%+0.3%F.S. for power. It supports master - slave interface control, and multiple loads can be paralleled and synchronized for loading (up to 93.6KW). The dynamic load simulation can reach 20kHz, and the current rise and fall slope can be programmed up to 25A/μs. It has protection and alarm functions for over - power, over - current, over - temperature, over - voltage and reverse - polarity, and is equipped with control interfaces such as GPIB and RS - 232.