calculadora de queda de tens\u00e3o e dimensionamento de energia do controlador de LED | Guangqi<\/title>\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap');\n\n\/* \u91cd\u7f6e\u57fa\u7840\u5bb9\u5668\uff0c\u53d6\u6d88\u539f\u672c\u7684max-width\uff0c\u8ba9\u5176\u652f\u6301\u5168\u5bbd\u5ef6\u4f38 (Full-Bleed) *\/\n#tool-power {\n --c0: #183090; --c1: #FFFFFF; --c2: #009048; --c2b: #D81818; --c-dark: #303030;\n --c3: #F5F7FA; --c4: #E0E4EB; --c5: #9AA0A8; --c6: #5B6168;\n --fM: 'IBM Plex Mono', 'Courier New', monospace;\n font-family: inherit; color: var(--c-dark); width: 100%;\n}\n#tool-power * { box-sizing: border-box; }\n\n\/* \u5168\u5bbd\u80cc\u666f\u5c42 (Full-Bleed Backgrounds) *\/\n#tool-power .full-bleed-section {\n width: 100%;\n}\n#tool-power .bg-light {\n background: var(--c1);\n}\n#tool-power .bg-gray {\n background: var(--c3);\n border-top: 1px solid var(--c4);\n border-bottom: 1px solid var(--c4);\n}\n\n\/* \u5f39\u6027\u951a\u5b9a\u5185\u5bb9\u5c42 (Anchored Content) *\/\n#tool-power .anchored-container {\n max-width: 1600px !important;\n margin: 0 auto;\n padding: 70px 30px; 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}\n#tool-power .result .col { flex: 1; }\n#tool-power .result .verdict { padding: 16px 20px; margin-top: auto; background: var(--c2); color: var(--c1); font-size: 14px; line-height: 1.5; font-weight: 500; }\n#tool-power .result .verdict.warn { background: var(--c2b); }\n\n\/* \u8865\u5145\u8bf4\u660e\u4e0e\u884c\u52a8\u547c\u5401 *\/\n#tool-power .footnote { font-size: 13px; color: var(--c6); margin-top: 24px; line-height: 1.6; }\n#tool-power .cta-row { padding: 24px 30px; background: var(--c3); border-left: 4px solid var(--c2); display: flex; flex-wrap: wrap; gap: 16px; align-items: center; border-radius: 0 4px 4px 0; }\n#tool-power .cta-row p { margin: 0; flex: 1; font-size: 15px; line-height: 1.6; color: var(--c-dark); }\n\n@media (max-width: 900px) {\n #tool-power .tool-grid { grid-template-columns: 1fr; }\n #tool-power .anchored-container { padding: 40px 20px; }\n}\n<\/style>\n<\/head>\n<body>\n<div id=\"tool-power\">\n\n <section class=\"full-bleed-section bg-light\">\n <div class=\"anchored-container\" style=\"padding-bottom: 35px;\">\n <h2 class=\"tool-title\">calculadora de queda de energia e tens\u00e3o do controlador de LED<\/h2>\n <p class=\"tool-sub\">Calcule a classifica\u00e7\u00e3o da corrente da fonte de alimenta\u00e7\u00e3o e a queda de tens\u00e3o ao longo da sua opera\u00e7\u00e3o CC. Evite a chamada de servi\u00e7o mais comum do lado do controlador: energia subdimensionada e queda de tens\u00e3o n\u00e3o gerenciada em longas cadeias de acess\u00f3rios.<\/p>\n <\/div>\n <\/section>\n\n <section class=\"full-bleed-section bg-gray\">\n <div class=\"anchored-container\">\n <div class=\"tool-grid\">\n \n <div class=\"panel\">\n <h3>Entradas Sistema<\/h3>\n <div class=\"field\">\n <label for=\"voltage\">Tens\u00e3o de acionamento<\/label>\n <select id=\"voltage\" class=\"select\">\n <option value=\"12\">12V DC<\/option>\n <option value=\"24\" selected>24V DC<\/option>\n <option value=\"48\">48V CC<\/option>\n <\/select>\n <\/div>\n <div class=\"field\">\n <label for=\"watt-per-m\">Carga por metro (W\/m) ou por acess\u00f3rio (W)<\/label>\n <input id=\"watt-per-m\" class=\"input\" type=\"number\" min=\"0\" step=\"0.1\" value=\"14.4\" \/>\n <\/div>\n <div class=\"field\">\n <label for=\"length\">Comprimento da corrida \/quantidade do dispositivo el\u00e9trico (m ou unidades)<\/label>\n <input id=\"length\" class=\"input\" type=\"number\" min=\"0\" step=\"0.5\" value=\"10\" \/>\n <\/div>\n <div class=\"field\">\n <label for=\"cable\">Se\u00e7\u00e3o transversal do cabo (mm\u00b2)<\/label>\n <select id=\"cable\" class=\"select\">\n <option value=\"0.75\">0,75mm\u00b2<\/option>\n <option value=\"1.0\">1,0mm\u00b2<\/option>\n <option value=\"1.5\" selected>1,5mm\u00b2<\/option>\n <option value=\"2.5\">2,5mm\u00b2<\/option>\n <option value=\"4.0\">4,0mm\u00b2<\/option>\n <option value=\"6.0\">6,0mm\u00b2<\/option>\n <\/select>\n <\/div>\n <div class=\"field\">\n <label for=\"cable-len\">Comprimento do cabo de uma perna (m)<\/label>\n <input id=\"cable-len\" class=\"input\" type=\"number\" min=\"0\" step=\"0.5\" value=\"5\" \/>\n <\/div>\n <div class=\"field\">\n <label for=\"headroom\">Headroom de pot\u00eancia (%)<\/label>\n <input id=\"headroom\" class=\"input\" type=\"number\" min=\"0\" max=\"100\" value=\"20\" \/>\n <\/div>\n <button class=\"btn btn-cta\" onclick=\"calcPower()\">Calcular<\/button>\n <\/div>\n\n <div class=\"result\" id=\"result\">\n <h3>Resultado Dimensionamento<\/h3>\n <div class=\"row\">\n <div class=\"col\">\n <span class=\"big\" id=\"r-watts\">144 W<\/span>\n <h4 class=\"lbl\">Carga total<\/h4>\n <\/div>\n <div class=\"col\">\n <span class=\"big\" id=\"r-amps\">6,0A<\/span>\n <h4 class=\"lbl\">Sorteio atual<\/h4>\n <\/div>\n <\/div>\n <div class=\"row\">\n <div class=\"col\">\n <span class=\"big\" id=\"r-psu\">7.2A<\/span>\n <h4 class=\"lbl\">Classifica\u00e7\u00e3o PSU (com espa\u00e7o livre)<\/h4>\n <\/div>\n <div class=\"col\">\n <span class=\"big\" id=\"r-vdrop\">0,83V<\/span>\n <h4 class=\"lbl\">Queda de tens\u00e3o (ida e volta)<\/h4>\n <\/div>\n <\/div>\n <div class=\"verdict\" id=\"verdict\">Queda de tens\u00e3o < 51TP3 T dentro da faixa segura para 24 V LED funciona.<\/div>\n <\/div>\n\n <\/div>\n \n <p class=\"footnote\">C\u00e1lculo: <code>I = P \/V<\/code>, queda de tens\u00e3o <code>V_drop = (I\u00d72\u00d7L\u00d7\u00d73\u03c1) \/A<\/code> onde \u03c1 0.0175 \u00b7mm\u00b2\/m de cobre O fator de cabo de ida e volta (\u00d72) \u00e9 respons\u00e1vel por e pernas A queda de tens\u00e3o aceit\u00e1vel em 24 V DC \u00e9 normalmente <51TP3 T (\u22641.2 V) na extremidade oposta Para 12 V \u00e9 executado a mesma porcentagem significa um or\u00e7amento absoluto mais apertado (mantenha os cabos de bitola curta ou alta.<\/p>\n <\/div>\n <\/section>\n\n <section class=\"full-bleed-section bg-light\">\n <div class=\"anchored-container\" style=\"padding-top: 35px;\">\n <h3>Precisa de assist\u00eancia de hardware?<\/h3>\n <div class=\"cta-row\">\n <p>Precisa de ajuda para combinar um controlador Guangqi e um par PSU com esta configura\u00e7\u00e3o? nossos engenheiros podem recomendar SKUs espec\u00edficos e fornecer um diagrama de fia\u00e7\u00e3o com a cota\u00e7\u00e3o.<\/p>\n <a class=\"btn btn-cta\" href=\"#ct-popup-801\">Solicite or\u00e7amento OEM<\/a>\n <\/div>\n <\/div>\n <\/section>\n\n<\/div>\n\n<script>\nfunction calcPower(){\n var v = parseFloat(document.getElementById('voltage').value)||24;\n var wpm = parseFloat(document.getElementById('watt-per-m').value)||0;\n var len = parseFloat(document.getElementById('length').value)||0;\n var cable = parseFloat(document.getElementById('cable').value)||1.5;\n var clen = parseFloat(document.getElementById('cable-len').value)||0;\n var hr = parseFloat(document.getElementById('headroom').value)||20;\n \n var totalW = wpm * len;\n var amps = totalW \/ v;\n var psu = amps * (1 + hr\/100);\n \n \/\/ resistivity copper ~0.0175 \u03a9\u00b7mm\u00b2\/m, round-trip factor 2\n var resistance = (0.0175 * 2 * clen) \/ cable;\n var vdrop = amps * resistance;\n var pct = (vdrop \/ v) * 100;\n \n document.getElementById('r-watts').textContent = totalW.toFixed(0) + ' W';\n document.getElementById('r-amps').textContent = amps.toFixed(2) + ' A';\n document.getElementById('r-psu').textContent = psu.toFixed(2) + ' A';\n document.getElementById('r-vdrop').textContent = vdrop.toFixed(2) + ' V';\n \n var ver = document.getElementById('verdict');\n if(pct < 3){\n ver.textContent = 'Voltage drop ' + pct.toFixed(1) + '% \u2014 well within safe range. Configuration is solid.';\n ver.className = 'verdict';\n } else if(pct < 5){\n ver.textContent = 'Voltage drop ' + pct.toFixed(1) + '% \u2014 within typical commercial spec, but on long runs the far end may dim slightly. Consider upsizing cable for headroom.';\n ver.className = 'verdict';\n } else if(pct < 8){\n ver.textContent = 'Voltage drop ' + pct.toFixed(1) + '% \u2014 exceeds the 5% target. Upsize cable to the next gauge, shorten the run, or split into multiple controller branches.';\n ver.className = 'verdict warn';\n } else {\n ver.textContent = 'Voltage drop ' + pct.toFixed(1) + '% \u2014 out of spec. Far-end fixtures will visibly under-drive. Re-architect the run with thicker cable, multiple PSU drops, or distributed controllers.';\n ver.className = 'verdict warn';\n }\n}\ncalcPower();\n<\/script>\n<\/body>\n<\/html>\n<\/div><\/div><\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>LED Controller Power Sizing & Voltage Drop Calculator | Guangqi LED Controller Power Sizing & Voltage Drop Calculator Calculate the power supply current rating and the voltage drop along your DC run. Avoid the most common controller-side service call: undersized power and unmanaged voltage drop on long fixture chains. System Inputs Drive voltage 12V DC24V […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":4293,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-4461","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/pages\/4461","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/comments?post=4461"}],"version-history":[{"count":0,"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/pages\/4461\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/pages\/4293"}],"wp:attachment":[{"href":"https:\/\/gqlamp.com\/pt\/wp-json\/wp\/v2\/media?parent=4461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}