{"id":12028,"date":"2023-08-31T23:14:34","date_gmt":"2023-08-31T15:14:34","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=12028"},"modified":"2025-07-07T10:26:57","modified_gmt":"2025-07-07T02:26:57","slug":"dc-vs-ac-6-things-you-must-know","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/dc-vs-ac-6-things-you-must-know\/","title":{"rendered":"CC et CA : 6 choses \u00e0 savoir"},"content":{"rendered":"
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Dans le monde r\u00e9el, il existe deux principaux types de courant : Le courant continu et le courant alternatif. Mais qu'est-ce que ces deux types de courant ? Quelle est la diff\u00e9rence entre eux ? Et comment convertir le courant continu en courant alternatif ou le courant alternatif en courant continu ? Cet article vous fournira une explication plus d\u00e9taill\u00e9e.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Qu'est-ce que l'alimentation en courant continu ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Courbe\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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DC est l'abr\u00e9viation de courant continu, d\u00e9couvert pour la premi\u00e8re fois par <\/span>Thomas Edison<\/span><\/a><\/span>. Imaginez une batterie avec une borne positive et une borne n\u00e9gative. Le courant continu part de la borne positive et circule r\u00e9guli\u00e8rement le long du fil ou du mat\u00e9riau conducteur dans le circuit, pour finalement s'\u00e9couler vers la borne n\u00e9gative. Il ne change pas de direction en cours de route.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Qu'est-ce que l'alimentation en courant alternatif ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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En revanche, le courant alternatif (AC) est le courant alternatif, invent\u00e9 par <\/span>Nikola Tesla<\/span><\/a><\/span>, Son sens de circulation n'est pas fixe comme le courant continu. Au cours du cycle pr\u00e9c\u00e9dent, le courant va du p\u00f4le positif de l'alimentation au p\u00f4le n\u00e9gatif, et au cours du cycle suivant, le sens du courant va changer, et le courant va aller du p\u00f4le n\u00e9gatif de l'alimentation au p\u00f4le positif.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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La diff\u00e9rence entre le courant continu et le courant alternatif<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Il existe six diff\u00e9rences entre l'alimentation en courant continu et l'alimentation en courant alternatif : le principe de fonctionnement, les caract\u00e9ristiques de la tension, la g\u00e9n\u00e9ration, la transmission, l'application et la tension r\u00e9glable du transformateur. Vous pouvez voir ces diff\u00e9rences dans le tableau ci-dessous.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\tAspect<\/span><\/th>\n\t\t\t \t\t\t\t \n\t\t\t\t\t\t\t\t\t\t\t\t\t\tDC<\/span><\/th>\n\t\t\t \t\t\t\t \n\t\t\t\t\t\t\t\t\t\t\t\t\t\tAC<\/span><\/th>\n\t\t\t \t\t\t\t <\/tr>\n\t\t\t <\/thead>\n\t\t\t \t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tPrincipe de fonctionnement\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tLe courant circule dans une direction unique et constante.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tLe sens du courant s'inverse p\u00e9riodiquement.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tCaract\u00e9ristiques de tension\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tStable\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tLa tension varie de fa\u00e7on sinuso\u00efdale avec le temps.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tProduction d'\u00e9lectricit\u00e9\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tBatteries, cellules photovolta\u00efques, piles \u00e0 combustible, etc.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tDynamo\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tTransmission\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tNe convient pas \u00e0 la transmission sur de longues distances en raison de la perte de tension sur la ligne.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tLes transformateurs sont utilis\u00e9s pour augmenter ou diminuer la tension, ce qui convient \u00e0 la transmission sur de longues distances.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tApplications\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tUtilis\u00e9 dans les appareils \u00e9lectroniques, les v\u00e9hicules \u00e9lectriques, les syst\u00e8mes photovolta\u00efques, etc.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tLargement utilis\u00e9 dans l'alimentation secteur, les appareils m\u00e9nagers et les \u00e9quipements industriels.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tAugmentation et diminution de la tension par le biais d'un transformateur\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tNon, le magn\u00e9tisme g\u00e9n\u00e9r\u00e9 par le courant continu est stable, la tension ne peut pas \u00eatre modifi\u00e9e par le transformateur.\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\tOui\t\t\t\t\t\t\t\t\t\t\t\t<\/div><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t \t\t\t <\/tbody>\n\t\t\t<\/table>\n\t\t<\/div>\n\t \t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Comment convertir l'un en l'autre ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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DC vers AC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Utiliser\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Onduleur de puissance<\/strong>: Un onduleur est un appareil \u00e9lectronique capable de convertir le courant continu (DC) en courant alternatif (AC). Par exemple, dans un syst\u00e8me d'\u00e9nergie solaire, un onduleur convertit le courant continu g\u00e9n\u00e9r\u00e9 par les panneaux photovolta\u00efques en courant alternatif domestique, ce qui permet \u00e0 l'\u00e9nergie solaire d'\u00eatre utilis\u00e9e par les appareils m\u00e9nagers courants qui sont con\u00e7us pour fonctionner sur le courant alternatif.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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AC vers DC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Utilisation\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Il existe plusieurs produits capables de convertir le courant alternatif en courant continu. Le premier produit est une alimentation \u00e0 d\u00e9coupage (SMPS). Les SMPS sont largement utilis\u00e9s dans divers appareils \u00e9lectroniques en raison de leur rendement \u00e9lev\u00e9 et de leur taille compacte. Un autre produit est un pont redresseur. Un pont redresseur est une structure \u00e0 diodes qui convertit le courant alternatif en courant continu en permettant au courant de circuler dans une seule direction. Il peut fournir un courant continu relativement r\u00e9gulier, ce qui est essentiel pour alimenter de nombreux circuits \u00e9lectroniques.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Lequel est le meilleur ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le choix entre le courant continu et le courant alternatif d\u00e9pend de l'application sp\u00e9cifique.\u00a0<\/span><\/p>

Le courant continu est plus stable, peut emp\u00eacher les lumi\u00e8res LED de scintiller et est plus efficace sur le plan \u00e9nerg\u00e9tique. Le courant continu est \u00e9galement largement utilis\u00e9 dans les appareils \u00e9lectroniques tels que les t\u00e9l\u00e9phones portables, les v\u00e9hicules \u00e9lectriques et les circuits \u00e9lectroniques.<\/span><\/p>

Pour les appareils ayant des besoins de puissance plus \u00e9lev\u00e9s, ou lorsque plusieurs appareils doivent \u00eatre aliment\u00e9s en m\u00eame temps, le courant alternatif est souvent un choix plus appropri\u00e9, car la tension principale du r\u00e9seau \u00e9lectrique est le courant alternatif. Et comme la plupart de nos appareils m\u00e9nagers sont aliment\u00e9s en courant alternatif, le courant alternatif convient mieux aux appareils m\u00e9nagers.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Applications d'alimentation en courant continu et en courant alternatif<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Applications d'alimentation en courant continu :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Applications\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  1. Piles<\/strong>: Les batteries, telles que les batteries de t\u00e9l\u00e9phone portable et les batteries de voiture, stockent l'\u00e9nergie \u00e9lectrique sous forme de courant continu.<\/span><\/li>
  2. Panneaux solaires<\/strong>: Les panneaux solaires produisent de l'\u00e9nergie \u00e9lectrique sous forme de courant continu.<\/span><\/li>
  3. Appareils \u00e9lectroniques<\/strong>: De nombreux petits appareils \u00e9lectroniques, y compris les t\u00e9l\u00e9phones portables, les ordinateurs, les circuits imprim\u00e9s et les lampes LED, n\u00e9cessitent du courant continu.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t

    Applications d'alimentation en courant alternatif :<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Applications\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\t\t\t\t
    1. \u00c9lectricit\u00e9 domestique<\/strong>: L'\u00e9lectricit\u00e9 fournie \u00e0 nos maisons par les prises de courant est du courant alternatif.<\/span><\/li>
    2. Transmission de puissance<\/strong>: Le courant alternatif est la forme d'\u00e9lectricit\u00e9 pr\u00e9f\u00e9r\u00e9e pour le transport d'\u00e9lectricit\u00e9 \u00e0 grande \u00e9chelle, et l'\u00e9lectricit\u00e9 utilis\u00e9e dans le r\u00e9seau \u00e9lectrique est \u00e9galement du courant alternatif.<\/span><\/li>
    3. \u00c9quipements industriels<\/strong>: De nombreux \u00e9quipements industriels, tels que les moteurs \u00e9lectriques et les cuisini\u00e8res \u00e0 induction, n\u00e9cessitent une alimentation en courant alternatif.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t

      Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
      \n\t\t\t\t
      \n\t\t\t\t\t\t\t\t\t

      En bref, le courant continu et le courant alternatif ont leurs propres avantages et inconv\u00e9nients, et chacun a ses propres sc\u00e9narios d'application. Et ils peuvent \u00eatre convertis l'un en l'autre.<\/span><\/p>

      Si vous avez des questions sur la diff\u00e9rence entre le courant continu et le courant alternatif, vous pouvez envoyer un courriel \u00e0 l'adresse suivante <\/span>shonxu@lorentzzi.com<\/span><\/a><\/span> et le <\/span>Lorentzzi\u00ae<\/b><\/a><\/span> r\u00e9pondra \u00e0 vos questions dans les 24 heures.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

      In the real world, there are two main types of power: DC power and AC power. But what are these two types of power? What is the difference between them? And how do you convert DC power to AC power or AC power to DC power? This article will provide you with a more detailed […]<\/p>\n","protected":false},"author":1,"featured_media":16737,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[117],"tags":[],"class_list":["post-12028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accessories"],"yoast_head":"\nDC Vs AC: 6 Things You Must Know<\/title>\n<meta name=\"description\" content=\"6 things you must know about DC Vs AC. 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