In addition, i asked customer change a lower boot cap 1uf to test again. Additional modules will be added to the pd1500a in the future to perform tests on devices requiring more current, such as. Evaluate power device efficiency with doublepulse testing. Keysights pd1500a is designed to be modular, allowing many device types to be tested and different characterization tests to be performed at a variety of power levels. The turnoff energy loss is lower than the datasheet specified value, while the turnon energy loss is higher. Pulsepulsefit epc 9 the virtual front panel the pulse generator window provides the layout of a stimulation pulse sequence test pulse there are two test pulse modes. The testing is done at 150, 200, and 250 a at 600 v, and switching loss and dv dt is compared for gate resistance of 2 and 3.
Double pulse testing create waveforms and automate testing of power. Double pulse test based switching characterization of sic mosfet. The double pulse test system for power semiconductor. Any user assumes the entire risk as to the accuracy and use of this information. Ive seen lots of materials about double pulse test,but theyve all used different width for two pulses and ive not. The triple pulse tester can also be expanded to include short circuit testing, of various types, by adding a few hw and sw components. Global growth of the electric vehicle ev market is driving strong demand for. The doublepulse test is the preferred test method to measure the. What is a double pulse test and how it is used for finding the.
With many possible applications for pd testing, accessories can help maximize the benefit of your pd test instruments. Aug, 2019 technical article the double pulse test system for power semiconductor dynamic characterization august, 2019 by ryo takeda this article highlights keysight pd1500a dynamic power device analyzerdpt as next generation dynamic test platform for power semiconductor device. The frequency and duty cycle of the pulse train can be chosen as desired, as the oscillator is built around the standard astablemonostable chip ne556 ic1. Ensure powerdevice data sheet requirements such as mosfets and igbts.
Afgs equipped with doublepulsetest application software. The results of a doublepulse test performed with an 800v dc bus voltage and a device current of 20 a are illustrated in the oscilloscope screen captures of figure 9. Additional modules will be added to the pd1500a in the future to perform tests on devices requiring more current, such as gan and power modules. Please how do i simulate double pulse test in ltspice and view switching losses like eon, eoff as well as power loss. Australasian universities power engineering conference. The mosfet switching loss will be calculated based on test results. The test light can be attached in series between the two terminals and the circuit evoked. Double pulse test based switching characterization of sic. Cree cpwran09 sic mosfet double pulse tester wolfspeed. Easyeda a simple and powerful electronic circuit design tool. Doublepulse testing board for gan devices ganpower. Technical article the double pulse test system for power semiconductor dynamic characterization august, 2019 by ryo takeda this article highlights keysight pd1500a dynamic power device analyzerdpt as next generation dynamic test platform for power semiconductor device.
Whether you need a sensor, measuring impedance, coupling capacitor or calibrator, we offer a complete line of doble partial discharge testing accessories to help refine your pd testing capabilities. Pulse pulsefit epc 9 the virtual front panel the pulse generator window provides the layout of a stimulation pulse sequence test pulse there are two test pulse modes. Double pulse test of the irfh5006 60v nchannel 5x6 pqfn mosfet. Dynamic power device analyzer with doublepulse test capability. The key measurements determined by shortcircuit testing and. I also asked customer to test the hb pin at the time of event. The new double pulse test plugin is another example of how our new afg3 makes it easy to set up test systems, quickly change parameters and run through a range of test cases with high efficiency and stability, said chris bohn, vice president and general manager of the keithley product line at tektronix.
Pulse pulsefit software for electrophysiological research. The test fixture contains a test socket for the mosfet j6, gate driver u1, capacitor bank c1c9, freewheeling. Easyeda is a free and easy to use circuit design, circuit simulator and pcb design that runs in your web browser. Sic mosfet double pulse fixture cpwran09, rev double pulse fixture this article describes a double pulse test fixture that is suitable for the characterization of sic mosfets. Although there are number of ways to create the pulses manually using a pc or microcontrollers, one of the easiest and most reliable is with an afg equipped with a double pulse test application fig. The setup is a text book double pulse tester with all critical components placed on a single printed circuit board to afford repeatable measurements. Although there are number of ways to create the pulses manually using a pc or microcontrollers, one of the easiest and most reliable is with an afg equipped with a doublepulse test application fig. Double pulse testing is typically used in the power and semiconductor industries to evaluate the switching parameters and dynamic behavior of power devices including silicon carbide sic and. Thus the mosfet will behave as a 25c device throughout the duration of the measurement which is what is modeled in spice.
Double pulse test software improves efficiency and stability for a variety of test cases. Some of these circuit design software let you create schematic design, while some let you design pcb. The power supply is used to supply the inductor with voltage. What is a double pulse test and how it is used for finding. The circuit sees a mosfet switch much differently from how it appears on a schematic. Here is a list of best free circuit design software for windows. Arbitrary function generator offers power efficiency testing. Pd1500a dynamic power device analyzerdouble pulse tester. The genesic double pulse test board is designed for performing double pulse switching tests on genesic sic junction transistors sjt as well as other three terminal switching transistors.
Download scientific diagram doublepulse test circuit a in the ltspice program for simulation and b used in the experiment. The double pulse test is conducted with a power supply and an inductive load. The results of a double pulse test performed with an 800v dc bus voltage and a device current of 20 a are illustrated in the oscilloscope screen captures of figure 9. These freeware let you design digital circuits with a vast array of inbuilt components. Keysights new pd1500a dynamic power device analyzer with double pulse test capability provides reliable, repeatable measurements of widebandgap wbg semiconductors that enable customers to. May 07, 2019 keysight technologies announces dynamic power device analyzer with double pulse test capability delivers consistent, reliable characterization of widebandgap semiconductors, ensures a safe test. A preliminary electrical evaluation of the assembled power module was done by a double pulse test shown in this figure.
Now you can generate two waveforms with varying pulse widths from 20 ns to 150 s in under a minute directly on the touchscreen display. Since these are influenced by layout of the power circuit, the power converter layout and its effect on the switching waveform are reported. Double pulse testing is the standard method for measuring the switching parameters of mosfets or igbt power devices. Please verify all wire colors and diagrams before applying any information. On, while the circuit is able to block the high voltage when the transistor or diode is turned off. Why the width of two pulses is different in double pulse test for igbt. Dynamic characterization of highspeed sic power mosfets. But now, the tektronix afg3 arbitrary function generator has a builtin software application that enables double pulse testing right from. All information on this site is provided as is without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. The effects of power circuit parasitic inductances are an important consideration in the application and characterization of sic mosfet modules. Doublepulse test software improves efficiency and stability for a variety of test cases. Shown below is the circuit of the digital pulse tester. Double pulse test board ga100sbjt12fr4 double pulse test. Double pulse test board ga100sbjt12fr4 double pulse.
The doublepulse test is the preferred test method to measure the switching parameters and evaluate the dynamic behaviors of power devices. Doublepulse testing to switching features of power module. Keysight technologies announces dynamic power device. Note that this is usually the same test circuit utilised by semiconductor manufacturers when. Development of a load inductor in a single pulse test circuit. Confirm the actual power unit or power system cost. As an offtheshelf measurement solution, the pd1500a delivers reliable, repeatable measurements of widebandgap semiconductors. Australasian universities power engineering conference, aupec. The afg3 is the first function generator on the market that includes builtin double pulse test software. The inductor is used in a converter design to simulate circuit. In the whole double pulse test, the low side mos test is all normal.
Test pulse 2b of iso 76372 generated and captured using keysight 14585a software. The genesic double pulse test board is designed for performing double pulse switching tests on genesic sic junction transistors sjt as well. Doble diagnostic test equipment doble engineering company. In this video it is explained how to configure the trenchstop 5 in to247 4pin evaluation board as a switching cell and use it to do double. Initially employing the double pulse test dpt technique, it has been. If it doesnt, either the wiring back to the ecu is compromised, or the ecu is not sending a command. Historically this has been a timeconsuming process to set up the double pulse test since function generators do not have a builtin way configure and set up the test. Power device analyser boasts doublepulse test capability. The measuring principle of the triple pulse test is shown in figure 4. Why the width of two pulses is different in double pulse.
A power mosfet under conventional gate drive is shown as the device under test dut. Check relay schemes, evaluate insulation condition and assess risk across your transformer fleet with doble diagnostic test equipment and software. Doble engineering company supports our clients in the electric power industry improve operations and optimize system performance. Safe operation of igbt igbt rbsoa diode soa short circuit vge limit others not tested by double pulse test. The double pulse test system for power semiconductor dynamic. Why the width of two pulses is different in double pulse test. Evaluation of sic mosfets for a high efficiency threephase. The purpose of choosing the double pulse test for this comparison is to select an operating scenario that does not induce mosfet selfheating. Keysight technologies announces dynamic power device analyzer with doublepulse test capability delivers consistent, reliable characterization of widebandgap semiconductors, ensures a. Figures 9b and 9c show magnified portions of the waveforms shown in figure 9a that. Below we will list the sequence of the testing procedure.
The double pulse test is usually used to measure the switching features of power modules. Sic spice model given by the manufacturer is used in the ltspice software tool to estimate the turn on and turn off loss of the device. A multivibrator circuit is nothing but a switching circuit. Test certain criteria for switching with various current value conditions and with many tools. Dynamic power device analyzer with doublepulse test.
Software for control of test instrumentation, analysis of test data, and implementation of test methods and structures dft is included in this category. The platform ensures user safety and protection of the systems measurement hardware. May 07, 2019 keysights pd1500a is designed to be modular, allowing many device types to be tested and different characterization tests to be performed at a variety of power levels. The time duration of the output pulse measured between two 50% levels of rising and falling waveform is defined as pulse width. Mathematically defining test pulse 2b of the iso76372.
Double pulse relay how do i make a dual pulse relay off of a single pulse alarm unlock setup. Test and measurement, software electronic products. The inductor is used in a converter design to simulate circuit conditions. Keysights new pd1500a dynamic power device analyzer with doublepulse test capability provides reliable, repeatable measurements of widebandgap wbg semiconductors that enable customers to. Minimizing parasitic effects in sic mosfet modules an12, rev ations with sic mosfet modules minimizing parasitic effects in sic mosfet modules scope. With many possible applications for pd testing, accessories can help maximize the. It is designed using low esl capacitors and pcb traces to feature a low parasitic series inductance ls current path. Leak and rs compensation this controls a hardware leak. Arbitrary function generator offers power efficiency. In this section, dpt circuit and results will be shown. The test is carried out at 32c and 125c ambient condition and the results are compared.
Digital pulse tester detailed circuit diagram available. Evaluation of sic mosfets for a high efficiency three. Modulation scheme and switching test circuit since the sic mosfet will be used in the current source converter, in which dc current is constant, the dpt. The test suite, which consists of curvetracing, sparameter, and double pulse tester hardware, takes measurements from actual wbg devices and uses advanced modeling software to build sophisticated wbg device models that are exclusive to keysight. The effects of power circuit parasitic inductances are an important consideration in the application and characterization of. Evaluate power device efficiency with doublepulse testing using. Dynamic characterization of highspeed sic power mosfets and. Feb 02, 2015 to confirm if the ecu is commanding control, you need to employ either a test light or a noid light. Keysight technologies announces dynamic power device analyzer. It generates nonsinusoidal waves such as square waves, rectangular waves and saw tooth waves etc.
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