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免费会员 其他
PEL-2000可编程直流电子負載,此電子負載可以工作在定電流、定電壓、定電阻模式下,還可模擬各種動態負載狀況,透過序列功能進行負載電壓、電流、負載的上升及下降斜率、電流準位、持續時間等参數來编輯負載波形,同時提供外部波形信号控制以及V&I監測功能,測試參數及狀態的存儲可高達120组,系统可根據自動測試需求,隨時由儀器内部的儲存單元EEPROM中呼叫出来使用。
PEL-2000系列包含兩種主控含機框PEL-2002(可容納雙模組)與PEL-2004(可容納四模組),採用模组化設計,協助使用者保留未來可能會運用到更高功率需求的擴充性,目前提供4款負載模组分別為:PEL-2020(200W雙通道負載模組100W*2 ; PEL-2030 (280W雙通道負載模組30W+ 250W) ; PEL-2040(350W單通道負載模組);PEL-2041(350W單通道負載模組)],以PEL-2004來代表最多可以组成8个通道同步使用,功率範圍200W~350W,電流範圍0~70A,電壓範圍1~500V,使用者可依據實際需求,選擇的負載模组及控制模组進行组合或自组負載系统,可同步執行多组电子負載模组拉載的應用,同時每個模组採用隔離與地浮接方式,避免造成短路回路 ; 現今綠能產業蓬勃發展,PEL-2000 系列符合各式消費性電子及車用能源設備測試的需求,透過外部排線並聯控制功能,最多可以同時控制五個主機框,並讓總体的總使用功率達到7kVA。
PEL-2000系列配備RS232、USB、GPIB(選配)接口、GO/NG接口,同时還配備了驅動程序和針對LabView、VB、C、C++等相關測試軟體範例。PEL-2000系列主要應用於多通道或單通道輸出的AC/DC電源、DC/DC電源模組、充电器及电源類电子元件性能的測試,對設計研發、生產線測試及產品檢測作業上提供快速有效的測試方案,同時具有的OPP、OCP、OVP、OTP、低壓保護以及正反向極性保護功能,更大幅提高了產品的可靠性、是工程測試及自動測試環境得以信賴的產品。
| A. AUTOMATICALLY SEQUENCE FUNCTION |
| The Sequence function allows each channel to change its load sink according to a predefined sequence at a rate of up to 100 s per step. Each sequence is able to run concurrently, under the control of one clock. This is one of the most powerful features of the PEL-2000 Series as it is able to realistically simulate a multi-output power supply load. Under Dynamic mode, the load current or load resistance pulses between two preset levels at a pre-defined speed up to 25 s per step. This is often used as the standard test procedure to verify the response of a power supply to quick load changes. The picture above is an example of a sequence used as a load profile for a single output switching power supply. A load profile is programmed to simulate the current draw of a power supply load. By using a current probe to acquire a current waveform, the PEL-2000 is able to evaluate the performance of a power supply based on the load sequence that is programmed. An oscilloscope is then used to display the result. |
| B. MULTIPLE OPERATING MODE |
| C.C. ( Constant Current ) In Constant Current mode, a load unit will sink the amount of current programmed. Regardless of the voltage change, the current will stay the same. Two selectable ranges are available for constant current mode: High (HI) and low (LO) range. Low range has a higher resolution for high precision measurements. If the current exceeds the low range, high range must be used. The PEL-2000 Series offers the maximum rated power for the low measurement range. This unique feature enables high-resolution measurements at high voltage only if the load current doesn't exceed the rated low range level. Both static and dynamic modes are available for CC operation. Static mode can be used for stability tests and Dynamic mode can be used to test transient load performance of a power supply. Go/NoGo is supported for both high and low ranges as well as Static and Dynamic modes. |