搜索结果：PEL-2000

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。 电子负载PEL-2000 基本功能介紹2(Vsense; 保护 http://v.youku.com/v_show/id_XMTQwMjUyNTMzNg==.html?spm=a2hzp.8253869.0.0 a> 电子负载PEL-2000 基本功能介绍6(GO-NOGO 使用) http://v.youku.com/v_show/id_XMTQwMjUyMzc1Mg==.html?spm=a2h0j.11185381.listitem_page1.5!24~A a> 电子负载PEL-2000 基本功能介绍5(Parallel 使用) http://v.youku.com/v_show/id_XMTQwMjUyMTgzNg==.html?spm=a2h0j.11185381.listitem_page1.5!25~A a> 电子负载PEL-2000 基本功能介绍4(Sequence使用) http://v.youku.com/v_show/id_XMTQwMjUxOTcwNA==.html?spm=a2hzp.8253869.0.0 a> 电子负载PEL-2000 基本功能介绍3(Preset使用) http://v.youku.com/v_show/id_XMTQwMjUxODgwOA==.html?spm=a2hzp.8253869.0.0 a> 电子负载PEL-2000 基本功能介绍1(mode,channel切换 http://v.youku.com/v_show/id_XMTQwMjUxNjYyOA==.html?spm=a2hzp.8253869.0.0 a> 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. C.V. ( Constant Voltage ) In Constant Voltage mode the load unit will sink current whilst keeping the voltage constant. Under CV mode, single channel load modules support two levels of voltage (A Value, B Value) with a preset cut-off current limit. An A / B button is available on the load module front panels to switch the Constant Voltage between A Value and B Value for power supply load regulation testing. Dual channel load modules only support A Value for CV mode. To accommodate the response of a power supply, response rates during voltage transitions can be set to fast or slow under static test mode. C.V.+C.C. ( Constant Voltage + Constant Current ) When using CV mode, a current limit can be set for CV+CC mode. If the input voltage is greater than the preset CV limit, the channel will operate in CV mode if the input current is less than the preset CC limit. When the input current exceeds the current limit, the channel will operate in CC mode. C.R. ( Constant Resistance ) In Constant Resistance mode the load units will linearly sink current and voltage to match a set resistance. Two different CR values and two different rising and falling slew rates can be set under CR Mode for single channel load modules. Like CC mode, Constant Resistance mode supports both dynamic and static loads. As with the other modes, Go/No Go is also supported. C. PARALLEL DYNAMIC LOADING All the load channels in a PEL-2000 mainframe can be connected in parallel to perform any combination of static or dynamic loading. Under Dynamic mode, the load current or load resistance pulses between two preset levels at a predefined speed of up to 25 s per step. When the channels are connected in parallel, dynamic tests are synchronously clocked. The ability to perform parallel dynamic loading gives you the flexibility to perform dynamic tests to highpower power supplies without the need for a dedicated high power electronic load. D. FRAME LINK The PEL-2000 Series allows multiple mainframes to be linked together with standard MIL 20-pin connectors to provide higher power load capacity. A maximum of 5 mainframes maximum, including one master and 4 slaves, can be chained together to give a 7kW load capacity for high current and high power applications E. RUN PROGRAM Under "Program" mode, up to 12 programs each with 10 panel setup memories, can be edited to create work routines for repetitive tests. After a program has completed, the results of all test steps, including the Go/NoGo judgments will be shown on the screen. Up to 12 programs with a total of up to 120 panel-setup memories can be chained together to be run one after the other. F. PROTECTION MODES The PEL-2000 Series includes a number of protection modes: Over Current Protection (OCP), Over Voltage Protection (OVP), Over Power Protection (OPP), Reverse Voltage Protection (RVP), and Under Voltage Protection (UVP). The protection modes are useful to protect both the load modules and the DUT(s). A buzzer can be set for when a protection setting has been tripped. When a protection mode has been tripped, the load unit will display an alarm and stop sinking current/voltage. When a load unit is operating in CR or CV mode, the unit may need Over Current Protection to prevent excessive current being sunk. Over Current Protection stops the load from sinking more current than its recommended limit and prevents the load from burn-out damage. Over Voltage Protection is used to limit the amount of voltage sunk. If the OVP trips, the PEL-Series load will stop sinking voltage. Over Power Protection is used when the input power exceeds the specifications of the load. When OPP is tripped, the power will cease to be sunk. Reverse Voltage Protection prevents reverse voltage damage to the PEL-2000 Series up to the specified rating. When Reverse Voltage Protection has been tripped, an alarm tone will sound until the reverse voltage is removed. Under Voltage Protection will turn off the load when the voltage drops below a set limit. G. Von VOLTAGE SETTINGS Von Voltage is the voltage limit at which the load will start to sink current. The Von Voltage setting is necessary for some kinds of power supply if a heavy load is connected during load on. There are two operation modes for Von Voltage: Latch ON and Latch OFF. When Von Latch is set to ON, the load starts to sink current when input voltage exceeds Von, and will continue to sink current even if the voltage drops below the Von Voltage later. When Von Latch is set to OFF, the load starts to sink current when input voltage exceeds Von, but will stop sinking current when the voltage drops below the Von voltage setting. This is to prevent the power supply from running into oscillation when the output voltage goes below certain level. H. EXTERNAL CHANNEL CONTROL A six-pin analog control connector is available on the rear panel to externally turn a load on/off and to externally monitor the load input status of each channel, including input current, input voltage, and CC current or CV settings. The Voltage Monitor Output (VMON) and Current Monitor Output (IMON) output the load input voltage and load input current as a percentage of rating current/voltage. Where 0 volts = 0% rating and 10 volts = 100% load input rating voltage or current. The voltage monitor output is across pins 1 & 3, and the current monitor output is across pins 1 & 2. Below shows the pin configuration of the voltage and current monitor outputs. To turn a load on, an active low voltage (0-1V) must be applied across Load On (pin 5) and GND (pin 1), similarly an active high voltage (4-5V) must be applied to turn a load off. The Load On input must be TTL.

PEL-2000A可编程直流电子负载，此电子负载可以工作在定电流、定电压、定电阻模式下，还可仿真各种动态负载状况，透过序列功能进行负载电压、电流、负载的上升及下降斜率、电流准位、持续时间等参数来编辑负载波形，同时提供外部波形信号控制以及V&I监测功能，测试参数及状态的存储可高达120组，系统可根据自动测试需求，随时由仪器内部的储存单元EEPROM中呼叫出来使用。 PEL-2000A系列包含两种主控含机框PEL-2002A(可容纳双模块)与PEL-2004(可容纳四模块)，采用模组化设计，协助使用者保留未来可能会运用到更高功率需求的扩充性，目前提供4款负载模组分别为：PEL-2020A(200W双信道负载模块100W*2 ; PEL-2030A (280W双信道负载模块30W+ 250W) ; PEL-2040A(350W单信道负载模块);PEL-2041(350W单信道负载模块)]，以PEL-2004A来代表最多可以组成8个通道同步使用，功率范围200W~350W，电流范围0~70A，电压范围1~500V，使用者可依据实际需求，选择的负载模组及控制模组进行组合或自组负载系统，可同步执行多组电子负载模组拉载的应用，同时每个模组采用隔离与地浮接方式，避免造成短路回路 ; 现今绿能产业蓬勃发展，PEL-2000A 系列符合各式消费性电子及车用能源设备测试的需求，透过外部扁平电缆并联控制功能，最多可以同时控制五个主机框，并让总体的总使用功率达到7kVA。 PEL-2000A系列配备RS232、USB、LAN（选配）、GPIB(选配)接口、GO/NG接口，同时还配备了驱动程序和针对LabView、VB、C、C++等相关测试软件范例。PEL-2000A系列主要应用于多信道或单信道输出的AC/DC电源、DC/DC电源模块、充电器及电源类电子组件性能的测试，对设计研发、生产线测试及产品检测作业上提供快速有效的测试方案，同时具有的OPP、OCP、OVP、OTP、低压保护以及正反向极性保护功能，更大幅提高了产品的可靠性、是工程测试及自动测试环境得以信赖的产品。 A. AUTOMATICALLY SEQUENCE FUNCTION 每个通道可以单独设置快速序列，每通道最多可以建立120个点、延迟时间等，每一步阶最小可设定为100us。在相同的控制模式下，可以同时进行多通道的序列控制，并模拟交换式电源供应器加载行为，这是PEL-2000A系列强而有力的特征之一，可运用在多通道输出电源供应器的模拟。在动态模式下，负载电流或脉冲负载电阻其两个预置准位的条件设置速度，每一步阶可达25us，这通常是作为标准测试程序，以验证负载快速变化的响应。 右上图是一张单通道交换式电源供应器仿真负载快速变化的一个范例。透过数字示波器搭配使用电流测棒所截取到的电流波形，PEL- 2000A可程序直流电子负载的序列编程功能，能够对于交换式电源供应器进行产品的性能测试 B. MULTIPLE OPERATING MODE C.C. ( 定电流运作模式 ) 定电流模式下，负载单元根据所设置的值吸入电流量，无论电压多大，电流保持不变。CC模式下共有两个档位：高(HI)与低(LOW)档位，低档位的分辨率比高档位高，用于精密测试，当电流超出低档位范围时就需切换配置文件位至高档位。PEL-2000A系列可程序直流电子负载，低范围所能承受的功率为该型号最大的额定功率。CC模式下包含静态与动态两个主要模式，静态模式用于稳定测试，动态模式用于测试瞬间负载，在动态与静态下也可使用Go /No Go 功能。 C.V. ( 定电压运作模式 ) 定电压模式下负载单元保持电压不变同时吸取电流，在定电压模式下，单信道负载其可以设定A & B两个值以及限制的电流值，亦可透过负载模块的前面板A/B键来切换并选择A或 B的测试条件。双信道负载只能设定一个条件值(A值)，在CV模式下可以设定响应时间的快慢。 C.V.+C.C. ( 恒压+恒流模式 ) 在定电压模式下，可设定一个电流限制，可进入CV+CC模式。当电压输入大于A值，并且输入电流低于限制电压时，信道运行在CV模式，当电流大于限制时,信道将进入CC模式。 C.R. ( 定电阻模式 ) 定电阻模式下负载单元吸收成线性比例的电流与电压以匹配所设定的电阻值。单通道。单通道有两种值，2个档位及上升与下降转换速率。和CC模式一样定电阻支持动态与静态负载，和其他负载一样，CR模式支持GO/NG功能。 C. PARALLEL DYNAMIC LOADING PEL-2000A主控的每个通道都可以并联使用，并可操作在动态与静态模式下。在动态模式下，负载可设定两个准位，两准位之间的延迟最小可设定为0.025ms。当信道并联使用时，动态测试必须要同步。透过并联可有效的执行动态高功率负载，无需采用大功率的负载机来提供。 D. FRAME LINK PEL-2000A系列可透过负载控制接口，连接多个电子负载，接面均为标准的MIL20-pin接口，最多可以将4个副控机框与第一主机框相互并接。 E. RUN PROGRAM 在编程序列模式下，共有12组编程序列，每一组程序中有10个序列，透过编辑参数可进行重复测试，运行完成后，所有的测试结果包含GO/NG判断结果将会全部显示在窗口上。 F. PROTECTION MODES PEL-2000A系列包含多种保护模式：过电流保护(OCP)、过电压保护(OVP)、过功率保护(OPP)、反极性保护(RVP)、低电压保护(UVP)，各种保护模式都能有效地保护负载与待测体，当保护设定被触发，蜂鸣器将会发出警报音，同时负载发出警报停止负载吸入电压及电流，负载运用在CV、CR模式时必须要设定过电流保护来限制负载的吸收电流，建议设定电流限制来防止负载烧坏。过电压保护用来限制负载的吸入电压，当设定好限制电压，负载就会有效的限制吸入电压来保护负载。反向极性保护可有效的防止反接带来的仪器损坏，透过设定低电压范围，可有效的防止待测体因电压过低带来的损坏。 G. Von VOLTAGE SETTINGS Von Voltage指负载开始吸取电流时的电压。Von Voltage共有两种操作模式：Von Latched 开 及 Von Latched 关 。当Von Latched开，当电压值达到Von电压时，负载开始吸入电流，且电压低于Von电压时，仍然持续吸入电流。Von Latched 关，电压值达到Von电压时，开始吸入电流，但当电压值低于Von电压时，停止吸入电流。如图：Von Latched被设置为关闭时，若Von-Voltage限制已超过，负载模块将开始吸入电流，直至输出电压下降于Von-Voltage限制时，才会停止吸收电流。 H. EXTERNAL CHANNEL CONTROL 透过后面板对应通道的6针插槽，可监测每个通道的输入状况，包括输入电压、输入电流、负载的On/Off，以及CC与CV模式的设定。电压监测输出，(VMON) 与电流监测输出 (IMON)，所输出的负载输入电压和负载输入电流是其所占全刻度的百分比，如0V＝0%全刻度输入电压，10V＝100%全刻度输入电压。电压监测透过1 & 3 电流监测透过1 & 2。下面描述了电压和电流监测输出的接脚配置。 为了启动负载，Load on (pin5) 和 GND (pin1) 端需透过低电压(0~1V)，同样，若需要透过较高电压(4-5V)；Load on 输入电压必须为TTL。

满足您所有的高速负载仿真需求 PEL-2004B和PEL-2002B是具有模块化结构的多信道可编程直流电子负载。 PEL-2000B系列旨在满足当今半导体市场不断向高速运转的方向转变。 作为驱动半导体电路的电源单元，DC-DC转换器和电池，必须遵循这种转换，电源设计，质量检查和使用高速性能负载的特性认证。 PEL-2000B系列包括两种类型的主机和四种类型的负载模块，以灵活的方式满足用户的需求。任何负载模块组合都可以与主机配合使用，根据信道数量和每个信道的最大负载功率，电压和电流来定制测试系统。 多个负载可以并联连接，以提供更高的功率负载来测试更高的电源输出。这种灵活性显著降低了具有不同功率要求的未来项目所需的投资。 PEL-2004B是一个带有主控单元的4槽主机，用于容纳4个负载模块，而PEL-2002B是一个带主控单元的2槽主机，用于容纳2个负载模块。