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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ZXSC100 датащи(PDF) 16 Page - Zetex Semiconductors |
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ZXSC100 датащи(HTML) 16 Page - Zetex Semiconductors |
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16 / 19 page  ISSUE 1 - JANUARY 2001 ZXSC100 16 Output Voltage Ripple Output voltage ripple is shown in Figure 8. The circuit is operated with a 1.2V input voltage, 3.3V output voltage and 100mA load current. Output voltage ripple will be dependent, to a large extent, on the output capacitor ESR. (see Applications section for recommended capacitors). Figure 8. Output voltage ripple for 3.3V/100mA output. Transient response Transient response to step changes in load is a critical feature in many converter circuits. The ZXSC100 operates a pulse by pulse regulation scheme and therefore corrects for changes in the output every pulse cycle, giving excellent response characteristic. Measurement with a power supply When measuring with a power supply it is important to realise that the impedance is much greater than that of a secondary battery (NiCd or NiMH). To simulate the lower impedance of the battery x10 low ESR 1000uF capacitors where placed in parallel at the input of the converter. All the dynamic performance measurements were taken using this technique. |
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