[introduction]The pressing demand that reduces carbon to discharge promoted the investment to electric technology, especially data center and electric car domain. According to Peng rich company newest electric car looks into a report, to 2050, almost all road is carried will realize electrification, predict to will bring about increase sharply of global power demand 27% . This one trend highlighted electric solution to discharge and be modelled in gas of greenhouse of keep within limits provide more but the principal port of durative prospective respect.
The pressing demand that reduces carbon to discharge promoted the investment to electric technology, especially data center and electric car domain. According to Peng rich company newest electric car looks into a report, to 2050, almost all road is carried will realize electrification, predict to will bring about increase sharply of global power demand 27% . This one trend highlighted electric solution to discharge and be modelled in gas of greenhouse of keep within limits provide more but the principal port of durative prospective respect.
More and more nitrogen change gallium (GaN) and carborundum (the broadband such as SiC) is unoccupied place (WBG) semiconductor replaces the silicon in switch mode power source and electric machinery driver base power MOSFET and IGBT. This kind of change is brought by the excellent performance of GaN and SiC parts of an apparatus, the frequency with include rapidder than silicon parts of an apparatus switch rate, higher power density, better is answered, smaller leak electric current, lower guiding connects resistor and higher working temperature. The result was to rise to run efficiency, reduced specific power consumption, conduce to abide by defending code and attestation requirement, and accord with electron of current unoccupied place electric power of JEDEC JC-70 broadband to change semiconductor standard. Add up to compasses sex to ensure, need advanced to these semiconductor technology to have full-scale test, this is full of challenge sex not only, still need new test strategy.
Peaceful overcomes the article recently " the double pulse that carries out WBG parts of an apparatus automatically checks " in discussed how to pass pair of SiC and GaN power parts of an apparatus to wait for broadband unoccupied place parts of an apparatus to carry out double pulse automatically to check, shorten significantly thereby setting and analytic time.
When test and verify is based on the WBG parts of an apparatus of SiC or GaN, the engineer must check many parameter, include:
● Switch loss: Exact time is right neat crucial. Capture the accept second error when signal may bring about a result not accurate.
● Peak value voltage: In process of hard switch of big electric current, high speed, aiguille of occurrence voltage of constant regular meeting.
● Peak value electric current: The sudden switch operation of WBG transistor can produce aiguille electricity, use force to parts of an apparatus, shorten possibly the service life of parts of an apparatus.
● Reinstate charge reversely: Undertake quantifying to renewing charge action reversely, in order to understand its the contribution to total loss.
Double pulse checks (DPT) is to measure a broadband unoccupied place (the first selection method that the switch of WBG) parts of an apparatus and diode restore parameter reversely. This kind of efficient test method can collect a key to measure an outcome, thereby efficient test and verify and the design that optimize power source converter. The definition of DPT signal was elaborated in detail in article, shared contain the oscillograph that measures software how to achieve automatic test setting, carry out and analyse. Measure software automatically to move measure to simplify through removing a hand flow, can save time already, can ensure the consistency of the result is mixed again but repeatability.
Double pulse checks (the first selection method that DPT) method is the switch parameter that evaluates power parts of an apparatus and dynamic behavior. Use automatic DPT setting and analysis, can shorten significantly test time, accelerate those who issue converter of generation power source to appear on the market speed. In addition, completely long-range control runs a test to be able to enhance security, prevent the facility be measuringed with tall voltage, tall electric current (DUT) is contacted directly.
The gender protects the measurement of critical value and function to need sue for peace to drive global carbon to decrease a platoon to satisfying the sources of energy really crucial. To achieve this one goal, must undertake consider and checking to new material, make we near contented energy demand and the end that observe new efficiency standard more. Notable is, can alleviate through take action in time and driving the progress of technology of power parts of an apparatus Peng rich company beforehand the of 27% increase rate of appraise.
Use oscillograph of applied note – and aleatoric function generator undertake to power semiconductor device double pulse checks – to provide the more and detailed information that concerns this theme.
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