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📄 cap-load 24v.xmcd

📁 开关电源的带容性负载能力的MATHCAD估算程序
💻 XMCD
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						</ml:apply>
						<ml:id xml:space="preserve">C</ml:id>
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		<region region-id="51" left="246" top="182.25" width="87" height="12" align-x="251.25" align-y="192" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
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				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Qg of main MosFET</p>
			</text>
		</region>
		<region region-id="23" left="42" top="212.25" width="70.5" height="17.25" align-x="84.75" align-y="222" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="Isample">R</ml:id>
					<ml:apply>
						<ml:mult style="auto-select"/>
						<ml:real>2.7</ml:real>
						<ml:id xml:space="preserve">惟</ml:id>
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			<rendering item-idref="6"/>
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		<region region-id="52" left="246" top="212.25" width="167.25" height="12" align-x="261.75" align-y="222" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
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				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Resistor for current sample of MosFET</p>
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		<region region-id="27" left="42" top="243" width="39.75" height="16.5" align-x="60.75" align-y="252" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="p">N</ml:id>
					<ml:real>165</ml:real>
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			<rendering item-idref="7"/>
		</region>
		<region region-id="28" left="42" top="267" width="34.5" height="16.5" align-x="60" align-y="276" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="s">N</ml:id>
					<ml:real>12</ml:real>
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			<rendering item-idref="8"/>
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		<region region-id="29" left="42" top="297" width="34.5" height="16.5" align-x="60" align-y="306" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="a">N</ml:id>
					<ml:real>27</ml:real>
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			<rendering item-idref="9"/>
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		<region region-id="53" left="246" top="296.25" width="79.5" height="12" align-x="261.75" align-y="306" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="true">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Number of winding</p>
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		<region region-id="32" left="42" top="327" width="47.25" height="16.5" align-x="55.5" align-y="336" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="s">f</ml:id>
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						<ml:mult style="auto-select"/>
						<ml:real>65</ml:real>
						<ml:id xml:space="preserve">KHz</ml:id>
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		<region region-id="54" left="246" top="326.25" width="74.25" height="12" align-x="258.75" align-y="336" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="true">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Switch frequency</p>
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		<region region-id="35" left="42" top="356.25" width="52.5" height="17.25" align-x="67.5" align-y="366" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="aux">C</ml:id>
					<ml:apply>
						<ml:mult style="auto-select"/>
						<ml:real>10</ml:real>
						<ml:id xml:space="preserve">渭F</ml:id>
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			<rendering item-idref="11"/>
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		<region region-id="55" left="246" top="356.25" width="126.75" height="12" align-x="263.25" align-y="366" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="true">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Cap of auxiliary power supply</p>
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			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="onmin">V</ml:id>
					<ml:apply>
						<ml:mult style="auto-select"/>
						<ml:real>16</ml:real>
						<ml:id xml:space="preserve">V</ml:id>
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			<rendering item-idref="12"/>
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			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="offmax">V</ml:id>
					<ml:apply>
						<ml:mult style="auto-select"/>
						<ml:real>8.5</ml:real>
						<ml:id xml:space="preserve">V</ml:id>
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			<rendering item-idref="13"/>
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			<text use-page-width="false" push-down="false" lock-width="true">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Threshold voltage of PWM IC</p>
			</text>
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		<region region-id="83" left="42" top="447" width="48" height="16.5" align-x="67.5" align-y="456" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="out">V</ml:id>
					<ml:apply>
						<ml:mult style="auto-select"/>
						<ml:real>24</ml:real>
						<ml:id xml:space="preserve">V</ml:id>
					</ml:apply>
				</ml:define>
			</math>
			<rendering item-idref="14"/>
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		<region region-id="47" left="12" top="494.25" width="57" height="12" align-x="33.75" align-y="504" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="false">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">
					<b>Calculation </b>
				</p>
			</text>
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		<region region-id="57" left="42" top="531" width="138" height="16.5" align-x="68.25" align-y="540" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="aux">Q</ml:id>
					<ml:apply>
						<ml:mult style="default"/>
						<ml:id xml:space="preserve" subscript="aux">C</ml:id>
						<ml:parens>
							<ml:apply>
								<ml:minus/>
								<ml:id xml:space="preserve" subscript="onmin">V</ml:id>
								<ml:id xml:space="preserve" subscript="offmax">V</ml:id>
							</ml:apply>
						</ml:parens>
					</ml:apply>
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			<rendering item-idref="15"/>
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		<region region-id="63" left="246" top="530.25" width="113.25" height="12" align-x="262.5" align-y="540" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="false">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Max valuable Q for startup</p>
			</text>
		</region>
		<region region-id="58" left="42" top="555" width="89.25" height="22.5" align-x="67.5" align-y="570" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:eval xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="aux">Q</ml:id>
					<result xmlns="http://schemas.mathsoft.com/math20">
						<unitedValue>
							<ml:real>7.5E-05</ml:real>
							<unitMonomial xmlns="http://schemas.mathsoft.com/units10">
								<unitReference unit="coulomb"/>
							</unitMonomial>
						</unitedValue>
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			</math>
			<rendering item-idref="16"/>
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		<region region-id="60" left="42" top="580.5" width="70.5" height="35.25" align-x="81.75" align-y="600" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:define xmlns:ml="http://schemas.mathsoft.com/math20">
					<ml:id xml:space="preserve" subscript="switch">N</ml:id>
					<ml:apply>
						<ml:div/>
						<ml:id xml:space="preserve" subscript="aux">Q</ml:id>
						<ml:id xml:space="preserve" subscript="g">Q</ml:id>
					</ml:apply>
				</ml:define>
			</math>
			<rendering item-idref="17"/>
		</region>
		<region region-id="65" left="246" top="596.25" width="128.25" height="12" align-x="258.75" align-y="606" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<text use-page-width="false" push-down="false" lock-width="false">
				<p style="Normal" margin-left="inherit" margin-right="inherit" text-indent="inherit" text-align="inherit" list-style-type="inherit" tabs="inherit">Max switch number of startup</p>
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		<region region-id="61" left="42" top="621" width="92.25" height="22.5" align-x="81" align-y="636" show-border="false" show-highlight="false" is-protected="true" z-order="0" background-color="inherit" tag="">
			<math optimize="false" disable-calc="false">
				<ml:eval xmlns:ml="http://schemas.mathsoft.com/math20">

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