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APS-7000 시리즈

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주요 특징? 4.3-inch TFT-LCD? Output capacity : APS-7050(500VA/310Vrms/4.2Arms), APS-7100(1kVA/310Vrms/8.4Arms), APS-7200(2kVA/310Vrms/16.8Arms), APS-7300(3kVA/310Vrms/25.2Arms)? Output augmentation by options (0~600Vrms/45~999.9Hz)? Low Ripple & Noise? Measurement and test functions include VOLT、CURR、PWR、SVA、IPK、IPKH、FREQ、PF、CF? Support a small AC current measurement 2mA ~ 35A, Min. resolution 0.01mA(APS- 7050& APS-7100)? Reverse Current Alarm Function? 10 sets of Sequence function to Edit Output Waveforms? 10 sets of simulate mode to Rapidly Simulate Transient Power Supply? 10 sets of Program mode to Define Measurement Sequence? 10 sets of Panel Memory Function? Automatic Execution of Sequence、Simulate、Program mode and Output Function when the Power is on? Standard Interfaces: USB Host, USB Device, LAN? Optional Interfaces: GPIB (APS-001), RS-232/USB CDC(APS-002 for APS-7050/7100), RS-232(APS-007 for APS-7200/7300) GWInstek introduces new APS-7000 series programmable AC power sources, which consists of 500VA of APS-7050, 1000VA of APS-7100, 2000VA of APS-7200 and 3000VA of APS-7300. APS-7000 series feature power characteristics from its linear structure design including low noise, low THD, and highly stabilized power output that are ideal for the product development and verification of input power with low noise requirement or stereo, video and audio deviceapplications, etc. The maximum rated voltage is 0~ 310Vrms, 25.2Arms, 100.8A peak current and the output frequency range is 45~500.0Hz. Users can conveniently augment the output voltage from 0Vrms to 600Vrms and output frequency from 45Hz to 999.9Hz by purchasing options without sending equipment back to GW Instek. One of the popular alternative energy solutions in the market is to utilize inverter to convert DC to AC and the converted AC is then sent to power grid or products require electricity. For instance, AC produced by PV inverter is sent to power grid or equipment requires electricity. While simulating power grid to verify inverter connecting with power grid, general AC power sources cannot withstand DUT’s feedback energy, hence, additional power consumptionresistors are needed to prevent AC power source from being damaged. On the contrary, APS-7000 series have the characteristic of absorbing reverse current so that additional power consumption resistors are not required. The input terminal of APS-7000 series is designed to isolate from the simulated AC power grid output terminal, therefore, users do not need an additional isolation device to protect DUT. APS-7000 series are suitable for simulating power grid and conducting inverter output characteristic tests,including synchronized phase and frequency. Reverse current and power detected by APS-7000 series will be displayed in red readings to facilitate user’s test observation. APS-7000 series utilize Simulate mode and Sequence mode to provide a single step or consecutive power changes; and to simulate power grid’s Voltage Abnormality Test and Frequency Abnormality Test. APS-7000 series comprise nine measurement and test functions (Vrms, Irms, F, Ipk, W, VA, PF, Ipk hold, CF), and provide user interface similar to that of AC Power Meter. APS-7000 series are ideal for the LED industry and standby mode power consumption test. Under the ARB mode, APS-7000 series provide waveforms in seven categories including Sine waveform, Triangle waveform, Staircase waveform(Square wave), Clipped Sinewave, Crest factor waveform,Surge waveform, and Fourier series and 20,000 waveform combinations so as to meet the requirements of simulating abnormal input power waveform test of various industries. Ten Preset settings allow users to store ten sets of data; Power ON Output setting allows Sequence, Simulate, and Program to automatically execute output after the equipment power is on. To meet the test criteria of line voltage fluctuation often seen in consumer electronics, APS-7000 series feature five methods to cope with special purpose or abnormal voltage, frequency, and phase; ten sets of the Simulate mode simulate power outage, voltage rise, and voltage fall; ten sets of the Sequence mode allow users to define parameters and produce sine wave by editing steps; ten sets of the Program mode can edit AC waveform output and define theceiling and floor level of measurement items for different DUTs; Ramp Control allows users to set the variation speed for output voltage rise and fall; Surge/Dip Control simulates DUT’s input power producing a Surge or Dip voltage overlapping with output voltage waveform at a specific time. For larger current output applications, voltage drop across the output cables should be avoided. APS-7200/7300 also provide the remote sense function, which senses DUT’s voltage and sends the information back to APS-7200/7300for program controlled voltage compensation. Therefore, APS-7200/7300 can provide users with very accurate large current measurement applications. Ethernet Port, on the rear panel, can be used for remote program control; Sync Output Socket provides external 10V sync output; Signal Output Connector provides monitor of Program execution results. APS-7000 series also provide users with Trigger In/Out and Output on/off remote control functions from J1 connector on the rear panel. More details, please follow APS-7000 brochure. Sequence ModeThere are ten sets of Sequence mode and each set has 0~255 steps. The time setting range for each step is 0.01 ~ 99.99 seconds. Combining many sets of steps to edit required waveforms satisfies users’ requirement of highly complicated waveforms.Sequence waveform Simulate ModeThis mode can rapidly produce different simulated input transient waveforms such as power outage; voltage rise and voltage fall etc. for engineers to evaluate the impact on DUT posed by the transient phenomena. For instance, capacitor endurance test.Power OutageVoltage RiseVoltage Fall Program ModeThis mode allows users to set ceiling and floor specifications to produce PASS/FAIL result after the measurement is done. It can also show test results for each test procedure or only show the last result. There are ten sets of Program mode and each set has 50 sets of memories. Each memory comprises 9 steps. Each Program will perform according to memories sequence, self-defined loops or designated steps to stop.Program Mode ARB ModeThis mode provides more than 50 different waveforms in 7 major categories to rapidly simulate distorted AC voltage waveforms. Sine waveformStandard AC Waveform Triangle waveformPower harmonic output simulation is triangle waveform Staircase waveformSimulate square waveform and staircase waveform for commercial UPS Clipped sinewaveSimulate grid power supply heavy load waveform Crest factor waveformSimulate rectified filter current waveform by capacitor input Surge waveformSimulate grid power supply’s peak over-voltage Fourier series synthesized waveform Simulate real output power waveform. Distorted power waveform is produced due to output impedance and non-linear effect such as inductance, capacitance, and parasitic capacitance effect. For example: motor. Ramp ControlRamp control allows users to set output voltage rise or fall speed which is based on time (1ms) or voltage (1Vrms) unit.Tup-> 0.1 ~ 999.9msTdn-> 0.1 ~ 999.9msVup-> 0.01 ~ 99.99 VrmsVdn-> 0.01 ~ 99.99 VrmsMode=Time, Tup=1 msec, VAC=100V, Freq=50Hz, Ramp output=on.Mode=Voltage, Vdn=2Vrms, VAC=100V, Freq=50Hz, Ramp output=off. Surge/Dip ControlOverlapping a Surge/Dip voltage on a normal voltage as the input power for DUT allows users to simulate Surge/Dip situation and evaluate DUT characteristics.DipSurge T Ipeak, hold function T, Ipk Hold sets delay time (1ms~60 seconds) for measurement after the output of Ipeak value and the maximum value will be retrieved. Update will be preceded only if measured value is greater than the original value. Ipk Hold is for measuring transient inrush current as soon as the equipment power is on that is usually done by oscilloscope and current probe. T, Ipk Hold delay time setting can be applied to measure inrush current of sequentially activatedDUT.Ipeak Measurement Control Panel CharacteristicsThere are two control panel modes: Standard mode and Simple mode. Both modes are shown as below. Standard mode combines settings and AC Power Meter measurement window display. Users apply Function key (F1~F3) to select required measurement items. There are nine items for selection. Simple mode shows all measurement items on the display.Standard ModeSimple Mode

PEL-2000A 시리즈

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주요 특징? Sequence function to do high Efficient load simulations? Flexible configuration with mainframes and plug-in modules? Multiple independent load inputs up to 8 channels in a mainframe? Parallel connection of inputs for increased load capacity? Parallel connection of inputs for static and dynamic tests? OPP/OCP/OVP/OTP protections? External channel control/monitoring via an analog control connector? Multi-Interface USB Device / Host, RS-232C, and GPIB (Optional) Satisfy All Your High Speed Load Simulation Needs The PEL-2004A and PEL-2002A are multiple channel, programmable DC electronic loads with a modularized structure. The PEL-2000A Series is designed to meet the continuing shift toward high speed operation in today‘s semiconductor market. As the power supply units, DC-DC converters, and batteries that drive semiconductor circuits to follow this shift, power supply design, quality inspection, and characteristic certification using high-speed performance loadshave become necessary. The PEL-2000A Series includes two types of mainframes and 4 types of load modules to accommodate users‘ requirements in a flexible manner. Any load module combination can be used with a mainframe to tailor a test system based on the number of channels, and the maximum load power, voltage and current of each channel. Multiple loads can be connected in parallel to provide a higher-power load to test higher power supply outputs. This flexibility significantly reduces the investment neededfor future projects that have different power requirements. The PEL-2004A is a 4-slot mainframe with a master control unit to hold 4 load modules, while PEL-2002A is a 2-slot mainframe with master control unit to hold 2 load modules. When the PEL-2004A is configured with 4 load modules rated at 350W each, the PEL-2000A series is able to sink up to 1.4kVA of power. For higher load capacities, mainframes can be linked together in parallel with standard MIL 20-pin connectors. A maximum of 5 mainframes, including one master and 4 slaves can be chained together to create a total load capacity of 7kW for high current and high power applications. Using 4 dual channel load modules, the PEL-2004A is able to test 8 power supply outputs simultaneously. The Sequence function allows each channel to change its load sink accordingto 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-2000A ASeries 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.Most remarkably, multiple load channels can be connected in parallel to run Dynamic tests synchronously under a single clock. This Parallel Dynamic functionality gives the flexibility to perform dynamic tests for a high-power power supply without the need of another high-power load. The PEL-2000A 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 when a protection setting has been tripped. When a protection mode has been tripped, the load unit will display an alarm and stop sinkingcurrent/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 sink. If the OVP trips, the PEL-2000A 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-2000A 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. The Go/NoGo function is available to monitor test results all the time. When a test result goes beyond a preset limit range, a "No Go" indicationwill be shown on the display and a "No Go" signal can be sent out through the D-SUB interface for external device control. This Go/NoGo function is available for CC mode, CV mode, and CR mode. Under "Program" mode, 12 programs, each containing 10 panel setup memories, can be edited to create work routines for repetitive tests. After a program has been executed, the results of all test steps, along with the Go/NoGo judgments, will be shown on the screen. For external control and system configuration,the PEL-2000A series has USB and RS-232 interfaces as standard and GPIB as an option. The LabView driver and Data Logging PC software are both supported for all the available interfaces. Each channel has an analog control/monitoring connector on the rear panel to externally turn a load on/off and to externally monitor load input current and voltage. A. AUTOMATICALLY SEQUENCE FUNCTIONThe 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-2000A 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-definedspeed 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-2000A 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 MODEC.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-2000A Series offers the maximum rated power for the low measurement range. Thisunique 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 accommodatethe 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 LOADINGAll the load channels in a PEL-2000A 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 tohighpower power supplies without the need for a dedicated high power electronic load. D. FRAME LINKThe PEL-2000A 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 PROGRAMUnder "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 MODESThe PEL-2000A 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 stopsinking 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-2000A Series load will stop sinking voltage. Over Power Protection is used when the input power exceeds the specifications of theload. When OPP is tripped, the power will cease to be sunk. Reverse Voltage Protection prevents reverse voltage damage to the PEL-2000A 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 SETTINGSVon 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 Latchis 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 CONTROLA 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 inputrating 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.

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