The quality of electric motorcycle charger has a large extent that the battery life is safe, so the charger will perform harsh test in the development and production certification, and Zhao electronic provides a perfect test plan for engineers to help quality improvement.
A set of electric motorcycle charger test schemes composed of programmable AC power, oscilloscope, power analyzer and oscillator recorder can help engineers find problems and improve quality (as shown below).
Figure 1 Motorcycle charger test plan
Figure 2 Some test items of motorcycle charger
The important circuit component of the motorcycle charger is a switching circuit, and the key test equipment in the circuit test scheme - PSA6000 series high-performance programmable AC power supply and ZDS4054 PLUS data mining oscilloscope.
Test Equipment-PSA High Performance Programmable AC Power PSA6000 Series High Performance Programmable AC power can not only output AC, direct current and DCC, but also integrated voltage fluctuations, harmonic synthesis, and waveform libraries, simulated normal or abnormal power supply conditions, Meet the test verification requirements for different industries. Brief introduction Common three functions: 1, adjustable initial / end phase angle - start peak current test
High-performance programmable AC power supply can set the voltage initial phase angle and end phase angle, and the routine application is to set the initial phase angle to 90 °, verify the maximum peak current and surge current of the electronics.
2, multiple output modes - one machine
Programmable AC power supply not only outputs pure AC (AC) or direct current (DC), but also outputs a binary flow mixture (AC + DC) to achieve multi-mode output, one machine.
3. Voltage fluctuation simulation simulation - Verify the resistance to abnormal power supply to abnormal power
High-performance programmable AC power integrated List, STEP, line simulation and other functions, can directly set electrical parameters (such as voltage, phase, frequency, time, etc.), accurate analog output suddenly decline, interrupt, etc., etc. Verification of product performance and feature provides a variety of power inputs.
Test equipment -ZDS oscilloscope
ZDS4054 PLUS oscilloscope has powerful parameter measurement, statistical function, and comprehensive trigger, decoding function, with 512M deep storage and 1 million high waveform refresh rates, and innovative joined ZEXPLORE waveform detection function, widely used in power supply Many industries and fields such as smart electronics, automotive electronics. 1, ZDS oscilloscope - loop test In switching power supply, op amp feedback network, loop analysis can measure the gain of the system, the phase of the frequency change (Birdcha), the analysis system's gain margin and phase margin, With the stability of the determination system, the ZDS4000 embedded loop test analysis software not only has a complete loop test method and precision measurement accuracy, but a innovative design of the test operation and user experience.
Figure 9 oscilloscope loop test
2, ZDS oscilloscope - power analysis function
The quality of the switching power supply directly affects the technical performance of the product and its security and reliability. The power test project is more, the amount of calculation is large, and the statistical cumbersome problems have been plaguing engineers. In order to solve these problems, the remote electrons increase the switching loss, SOA, inductive test and other power analysis functions in the oscilloscope.
3, ZDS oscilloscope-SOA security work area test
Switch devices have long-term power consumption, one but overpressure or overcurrent may cause devices damage or even exploding. Through the ZDS oscilloscope, the SOA security workspace measurement function can accurately evaluate all states of the switching devices in the entire working cycle, clearly give the power to exceed the security workspace, which is convenient for engineers to better evaluate power work stability.
4, ZDS oscilloscope - switch loss one-button test
PFC MOS Tube Switching Test is a difficult point in the power supply debugging. Since the voltage and current waveform of different cycles are different, the accurate assessment of power loss is also more dependent on waveform capture of long-term high sample rate, so storage depth and power loss operation original The number of points becomes the key to the switching loss.
The ZDS oscilloscope can be up to 512M storage depth and optimized by full-hardware acceleration processing, and the power loss of the quantitative switching device can be accurately used.
Figure 12 Switch loss test
Original title: Eliminate the risk of charge charging, 1 minute Get
Article Source: [WeChat public number: ZLG Zhiyuan Electronics] Welcome to add attention! Please indicate the source of the article.
Editor in charge: Haq, read full text, original title: eliminate electric motor charging hidden dangers, 1 minute Get coup
Article Source: [Micro Signal: Zlg_zhiyuan, WeChat Public Number: Nordic Semiconductor] Welcome to add attention! Please indicate the source of the article.
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