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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN2208 датащи(PDF) 35 Page - STMicroelectronics |
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AN2208 датащи(HTML) 35 Page - STMicroelectronics |
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35 / 51 page  AN2208 7 Test results 35/51 7.1.3 EMC test results IEC 61000-4-4 EFT test The VN808 reference design board is tested according IEC 61000-4-4 for ±4kV level. Table 6 lists test results. Waveforms of bursts injected during the tests are shown in Figure 40 and Figure 41. The test lasted approximately 1 minute with ±4 kV and a repetition rate of 5 kHz. During the tests, all channels were switched. Test result: The VN808 HSD worked properly during the test. IEC 61000-4-5 surge test A coupling decoupling network with a 42 Ω impedance was used when performing the test. The test was executed with ±2kV. When testing power supply lines, all channels were switched. When testing the output channel, only the tested channel was switched. A 4.7nF 500V capacitor was placed between the power supply and the earth protection. Table 6. EMC test IEC 61000-4-4 EFT test results (VN808 RDB) IEC 61000-4-4 Burst test Test Condition VN808 RDB 1/2 VN808 RDB 2/2 Power supply Input ON ±4kV OK ±4kV OK Input OFF ±4kV OK ±4kV OK Switch @ 1Hz ±4kV OK ±4kV OK Output Input ON ±4kV OK ±4kV OK Input OFF ±4kV OK ±4kV OK Switch @ 1Hz ±4kV OK ±4kV OK Input Input ON ±4kV OK ±4kV OK Input OFF ±4kV OK ±4kV OK Figure 40. Burst applied on the power supply Figure 41. Burst applied on the output channel |
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