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Audio and Video Talk
Valves / Vacuum Tubes
DIY Simple Output Transformer
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<blockquote data-quote="Mars" data-source="post: 79911" data-attributes="member: 817"><p>From Turner (<a href="http://www.turneraudio.com.au/output-trans-pp-calc.htm" target="_blank">http://www.turneraudio.com.au/output-trans-pp-calc.htm</a>) I get this:</p><p></p><p>39. Is the leakage inductance low enough?</p><p>Calculate reactance of LL at 100 kHz.</p><p></p><p>ZLL at 100kHz = L in henrys x 2 x pye x F </p><p> = L x 6.28 x 100,000Hz, ohms</p><p></p><p>OPT1,</p><p>ZLL at 100kHz = 0.00435 x 6.28 x 100,000 = 2,731 ohms .................2,731 ohms</p><p></p><p>Is ZLL less than PRL at 100 kHz?.............................................................yes/no</p><p></p><p>Eg, we have RL = 5,000 ohms, ZLL = 2,731 ohms at 100 kHz...................yes.</p><p></p><p>40. If answer to step 38 is yes, leakage inductance is low enough.</p><p></p><p>My mind is shutting down here... simple calculation to done later <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Mars, post: 79911, member: 817"] From Turner ([url=http://www.turneraudio.com.au/output-trans-pp-calc.htm]http://www.turneraudio.com.au/output-trans-pp-calc.htm[/url]) I get this: 39. Is the leakage inductance low enough? Calculate reactance of LL at 100 kHz. ZLL at 100kHz = L in henrys x 2 x pye x F = L x 6.28 x 100,000Hz, ohms OPT1, ZLL at 100kHz = 0.00435 x 6.28 x 100,000 = 2,731 ohms .................2,731 ohms Is ZLL less than PRL at 100 kHz?.............................................................yes/no Eg, we have RL = 5,000 ohms, ZLL = 2,731 ohms at 100 kHz...................yes. 40. If answer to step 38 is yes, leakage inductance is low enough. My mind is shutting down here... simple calculation to done later :) [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
DIY Simple Output Transformer
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