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Warsaw rectifier
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<h2 id="features">Features</h2> <p>The Warsaw Rectifier provides the following features: </p> <ul><li>Unity <a href="/facts/Power_factor/TLKPkptn">power factor</a> <a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a></li> <li>Three-wire input, which does not require a connection to the <a href="/facts/Neutral_wire/uFo5TAKh">neutral wire</a></li> <li><a href="/facts/Ohmic_contact/ymaBXRcV">Ohmic</a> behaviour</li> <li>Controlled output voltage</li> <li>Simple control scheme</li> <li>Low power losses</li></ul> <p>Unique features of the Warsaw Rectifier: </p> <ul><li><a href="/facts/Short_circuits/r09vaaeQ">Short circuits</a> do not cause current to flow through switches</li> <li>No cross-short circuiting of switches possible</li> <li><a href="/facts/Dead_time/KYCGJ5cX">Dead time</a> is not required</li></ul> <h2 id="topology">Topology</h2> <p>The Warsaw rectifier is a <a href="/facts/Unidirectional_network/hunLcABd">unidirectional</a>, <a href="/facts/Three-phase/YXY3bQCx">three-phase</a>, three-switch two-level <a href="/facts/Pulse-width_modulation/cqjcrYs7">pulse-width modulation (PWM)</a> <a href="/facts/Rectifier/me8XDxND">rectifier</a>. This topology uses three <a href="/facts/Transistor/Bmr8zwL0">insulated-gate field-effect transistors</a> (IGFET) and eighteen <a href="/facts/Diodes/JyaoyGnk">diodes</a>. The bidirectional switches (composed of four diodes and one IGFET circuit) are connected in a <a href="/facts/Circuit_topology_(electrical)/rEeoJRC9">delta topology</a>. The rectifier output does not require a divided DC-link circuit as required in the Vienna rectifier topology.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a><a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Vienna_rectifier/4t0NSmyy">Vienna rectifier</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Koczara W., "Controlled Rectifier", Polish Patent PL 167855, Apr. 17, 1992. <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Koczara W., "Unity factor three phase rectifier", Power Quality ’92 Conference Europe, Münich, October 1992, 79–88, 14–15. <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Koczara W., Bialoskorki P., "Unity power factor three phase rectifiers" Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE at [1] <a href="https://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=471997&queryText=koczara&sortType=asc_p_Publication_Year" target="_blank">https://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=471997&queryText=koczara&sortType=asc_p_Publication_Year</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>D. Carlton, W.G. Dunford, M. Edmunds, “Continuous conduction mode operation of a three-phase power-factor correction circuit with quasi tri-directional switches” Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE [2] <a href="/wiki/Power-factor_correction" target="_blank">/wiki/Power-factor_correction</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Bałkowiec T., “Three Phase Warsaw Boost Rectifier for High Power Variable Speed Power Generation” Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej, Nr 71, 2015 at http://www.imnipe.pwr.wroc.pl <a href="http://www.imnipe.pwr.wroc.pl/files/prv/id35/wyd/pn/sim35/sim35-art01.pdf" target="_blank">http://www.imnipe.pwr.wroc.pl/files/prv/id35/wyd/pn/sim35/sim35-art01.pdf</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> </ol>