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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ZIOL2102 датащи(PDF) 58 Page - List of Unclassifed Manufacturers |
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ZIOL2102 датащи(HTML) 58 Page - List of Unclassifed Manufacturers |
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58 / 91 page  ZIOL2xxx – IC Family IO-Link compliant HV Line Driver IC Family Data Sheet January 31, 2012 © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.2.1 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to changes without notice. 58 of 90 The converter runs independently from the two driver channels (COM/AUX) and their digital control state machine. A reset has no influence on the DC/DC converter. 3.6.2. Principle of Operation Figure 3.21 shows the working principle of the DC/DC converter. Required external components are described in chapter 3.6.3. Figure 3.21 DC/DC Converter in Principle The DC/DC converter senses the output voltage divided by the resistors R1 and R2 at pin FB. The difference between this signal and the reference voltage is amplified and then transformed into a PWM signal by comparing it with a triangular waveform. The PWM signal now enables and disables the output transistor. This results in a pulse length modulated signal with an amplitude of VDD_HV and –VD (the Schottky diode forward drop) which is then been filter via a second order LC filter to generate the output voltage VOUT. |
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