{"id":16543,"date":"2026-08-19T14:23:03","date_gmt":"2026-08-19T06:23:03","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=application&p=16543"},"modified":"2026-08-19T14:23:03","modified_gmt":"2026-08-19T06:23:03","slug":"ev-charging-and-automotive-dc-dc-power-solution","status":"publish","type":"application","link":"https:\/\/www.wehopower.com\/pt\/solution\/ev-charging-and-automotive-dc-dc-power-solution\/","title":{"rendered":"Carregamento de EV e solu\u00e7\u00e3o de energia automotiva DC-DC"},"content":{"rendered":"

Como coordenar as filiais WEHO AC\/DC, DC-DC e backup para controladores de carregadores, comunica\u00e7\u00f5es, medidores, contatores, displays e auxiliares de gerenciamento t\u00e9rmico.<\/p>\n

Resposta direta: <\/strong>Os produtos da WEHO nesta solu\u00e7\u00e3o est\u00e3o posicionados para energia auxiliar e de controle dentro do equipamento de carregamento EV, n\u00e3o como o principal est\u00e1gio de energia de carregamento do ve\u00edculo. Uma arquitetura pr\u00e1tica converte a entrada da esta\u00e7\u00e3o protegida em trilhos est\u00e1veis de baixa tens\u00e3o para o controlador, IHM, comunica\u00e7\u00f5es, medi\u00e7\u00e3o, bobinas de contator, sensores e controles de resfriamento. As fam\u00edlias NDR, RSP, SD e PSC cobrem AC\/DC montado em trilhos, PFC centralizado AC\/DC, DC-DC secund\u00e1rio e pequena Qualquer uso de DC-DC automotivo no ve\u00edculo requer uma revis\u00e3o ambiental, EMC, seguran\u00e7a e qualifica\u00e7\u00e3o separada para o modelo exato.<\/p>\n

 <\/p>\n

1. O que \u00e9 uma solu\u00e7\u00e3o de carregamento de EV e de energia DC-DC automotiva?<\/b><\/strong><\/h2>\n

Uma solu\u00e7\u00e3o de energia de carregamento de EV e DC-DC automotivo fornece a eletr\u00f4nica de baixa tens\u00e3o que supervisiona e opera o equipamento de carregamento em torno de seu est\u00e1gio principal de convers\u00e3o de energia e pode criar trilhos DC secund\u00e1rios compat\u00edveis. Cargas auxiliares podem incluir o controlador do carregador, display, modem de comunica\u00e7\u00e3o, interface do medidor de energia, monitoramento de seguran\u00e7a, bobinas de contator, sensores de porta, ilumina\u00e7\u00e3o e ventiladores ou bombas. sem comprova\u00e7\u00e3o de qualifica\u00e7\u00e3o automotiva espec\u00edfica do modelo.<\/p>\n

Zhejiang Weihao Electronic Co., Ltd.(WEHO) fornece AC\/DC, DC-DC e UPS-fun\u00e7\u00e3o de produtos de energia que podem suportar compat\u00edvel carregador circuitos auxiliares. A fam\u00edlia NDR se encaixa organizado DIN se\u00e7\u00f5es de controle ferrovi\u00e1rio, RSP fornece centralizado AC\/DC alimenta\u00e7\u00e3o com PFC, O SD converte uma fonte DC compat\u00edvel em um trilho secund\u00e1rio e o PSC pode suportar uma bateria pequena e adequada. O principal conversor de carregamento EV e o sistema de protocolo do ve\u00edculo requerem projetos de carregadores dedicados fora do escopo desses produtos.<\/p>\n

Solu\u00e7\u00e3o \u00e0 vista<\/b><\/strong><\/h3>\n\n\n\n\n\n\n\n
Sistema necess\u00e1rio<\/strong><\/td>\nProduto relevante da WEHO<\/strong><\/td>\nPapel prim\u00e1rio<\/strong><\/td>\n<\/tr>\n
Eletr\u00f4nica de controle ferrovi\u00e1rio<\/td>\nNDR-75<\/strong><\/td>\nCarril prim\u00e1rio de controle de carregador de baixa tens\u00e3o<\/td>\n<\/tr>\n
Carga auxiliar centralizada<\/td>\nRSP-250 milh\u00f5es<\/strong><\/td>\nAlimenta\u00e7\u00e3o AC\/DC de baixo perfil com PFC<\/td>\n<\/tr>\n
Dom\u00ednio de tens\u00e3o secund\u00e1ria<\/td>\nSD-25<\/strong><\/td>\nConvers\u00e3o DC-DC a partir de um barramento DC compat\u00edvel<\/td>\n<\/tr>\n
Pequeno ramo de backup<\/td>\nPSC-60<\/strong><\/td>\nControle ou backup de comunica\u00e7\u00e3o quando compat\u00edvel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n
\"Site
Site de carregamento de VE ilustrativo; os produtos WEHO neste artigo abordam a pot\u00eancia de controlo auxiliar, n\u00e3o o conversor de carregamento principal<\/figcaption><\/figure>\n

 <\/p>\n

2. Como deve ser estruturado o sistema de carregamento de EV e o sistema de alimenta\u00e7\u00e3o DC-DC automotivo?<\/b><\/strong><\/h2>\n

Comece com a entrada da esta\u00e7\u00e3o protegida e separe claramente o caminho principal de energia de carregamento do ve\u00edculo dos controles auxiliares. Defina a tens\u00e3o de controle prim\u00e1rio e, em seguida, segmente as comunica\u00e7\u00f5es, os displays, as bobinas do contator e as cargas de gerenciamento t\u00e9rmico quando seus requisitos de pico de corrente, aterramento ou passeio diferem.<\/p>\n

\"A
A fia\u00e7\u00e3o final, a prote\u00e7\u00e3o, a classifica\u00e7\u00e3o de sa\u00edda e os detalhes de instala\u00e7\u00e3o devem ser confirmados para a aplica\u00e7\u00e3o exata e o modelo selecionado<\/figcaption><\/figure>\n

Auxiliar ferrovi\u00e1rio prim\u00e1rio: <\/strong>Abaste\u00e7a o controlador da esta\u00e7\u00e3o, a IHM, as interfaces do medidor, as comunica\u00e7\u00f5es e os sensores padr\u00e3o a partir de um barramento de baixa tens\u00e3o documentado.<\/p>\n

Ferrovi\u00e1rio Secund\u00e1rio: <\/strong>Use SD DC-DC quando um subsistema auxiliar precisar de outra tens\u00e3o ou isolamento revisado; confirme as fun\u00e7\u00f5es exatas do modelo.<\/p>\n

Ride-through do ramo: <\/strong>Use o PSC somente para um controle pequeno compat\u00edvel ou ramal de comunica\u00e7\u00e3o ap\u00f3s verificar a tens\u00e3o da bateria, o tempo de carregamento e o tempo de backup.<\/p>\n

 <\/p>\n

3. Quais problemas a solu\u00e7\u00e3o WEHO resolve?<\/b><\/strong><\/h2>\n\n\n\n\n\n\n\n
O desafio do design<\/strong><\/td>\nA resposta da WEHO<\/strong><\/td>\n<\/tr>\n
Pot\u00eancia principal versus pot\u00eancia auxiliar<\/strong>
\n<\/strong>Tratar uma fonte auxiliar como o conversor de carregamento do ve\u00edculo cria uma arquitetura de sistema incorreta.<\/td>\n		Mantenha o est\u00e1gio de carga de alta pot\u00eancia separado e use os produtos WEHO para fun\u00e7\u00f5es auxiliares e de controle de baixa tens\u00e3o compat\u00edveis.<\/td>\n<\/tr>\n
Temperatura externa e calor de fechamento<\/strong>
\n<\/strong>Ganho solar, perdas de carregador e fluxo de ar restrito podem reduzir a sa\u00edda auxiliar dispon\u00edvel.<\/td>\n		Use a redu\u00e7\u00e3o exata do modelo, a an\u00e1lise t\u00e9rmica do gabinete, o fluxo de ar e a folga de instala\u00e7\u00e3o, em vez de apenas a pot\u00eancia da placa de identifica\u00e7\u00e3o.<\/td>\n<\/tr>\n
Contator pulsado e fan loads<\/strong>
\n<\/strong>Bobinas e equipamentos de refrigera\u00e7\u00e3o podem criar mergulhos de inicializa\u00e7\u00e3o no trilho do controlador.<\/td>\n		Tamanho da corrente de pico e ramos separados ou convertidos localmente que poderiam redefinir o controlador ou as comunica\u00e7\u00f5es.<\/td>\n<\/tr>\n
Comunica\u00e7\u00e3o Continuidade<\/strong>
\n<\/strong>Uma breve interrup\u00e7\u00e3o de entrada pode interromper a autentica\u00e7\u00e3o ou a supervis\u00e3o remota.<\/td>\n		Defina quais cargas de controle exigem o ride-through e valide uma ramifica\u00e7\u00e3o compat\u00edvel com o PSC, quando apropriado.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

4. Quais produtos WEHO se adaptam ao carregamento de EV e \u00e0s cargas auxiliares automotivas?<\/b><\/strong><\/h2>\n

Um sistema completo pode combinar mais de uma fam\u00edlia de produtos. Clique em cada imagem de produto real da WEHO para abrir sua p\u00e1gina oficial de produto correspondente. A sele\u00e7\u00e3o final permanece espec\u00edfica do modelo e deve seguir a especifica\u00e7\u00e3o mais recente.<\/p>\n\n\n\n\n
\"NDR<\/p>\n

NDR-75 DIN rail AC\/DC (em ingl\u00eas)<\/strong><\/p>\n

S\u00e9ries do NDR<\/strong><\/p>\n

Pot\u00eancia de controle montada em trilhos para PLC, I\/O, rel\u00e9s, sensores e comunica\u00e7\u00f5es. Confirmar c\u00f3digo de sa\u00edda e redu\u00e7\u00e3o para o gabinete.<\/td>\n

\"RSP<\/p>\n

RSP-250 AC\/DC with PFC<\/strong><\/p>\n

RSP series<\/strong><\/p>\n

Low-profile AC\/DC supply with active PFC for centralized loads. Select by real input, output, cooling, load profile and enclosure temperature.<\/td>\n<\/tr>\n

\"SD<\/p>\n

SD-25 DC-DC conversion<\/strong><\/p>\n

SD series<\/strong><\/p>\n

Creates a compatible secondary DC rail from an existing DC source. Confirm input window, output, isolation and thermal derating on the exact model.<\/td>\n

\"PSC<\/p>\n

PSC-60 UPS-function supply<\/strong><\/p>\n

PSC series<\/strong><\/p>\n

Suitable for a small battery-backed DC branch when its load output, charging behavior and battery compatibility match the system.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"Illustrative
Illustrative charger auxiliary cabinet with separate control, switching and thermal management functions<\/figcaption><\/figure>\n

 <\/p>\n

5. Where Is This EV Charging and Automotive DC-DC Power Solution Used?<\/b><\/strong><\/h2>\n

DC fast-charger controls: <\/strong>Support the supervisory controller, HMI, metering interfaces, contactor controls and communications around the main power stage.<\/p>\n

AC wallbox charging: <\/strong>Provide compact control and communication power inside a protected wallbox or adjacent enclosure.<\/p>\n

Fleet-depot chargers: <\/strong>Standardize auxiliary rails across multiple charging dispensers and central communication equipment.<\/p>\n

Parking-garage networks: <\/strong>Power authentication, networking, displays, door sensors and compatible thermal-management loads.<\/p>\n

Remote charger monitoring: <\/strong>Use a compatible backed-up branch when communication continuity is required during short input disturbances.<\/p>\n

 <\/p>\n

Representative Application Environments<\/b><\/strong><\/h3>\n
\"Parking
Parking installation compact auxiliary power supports controls, communications and local monitoring<\/figcaption><\/figure>\n
\"Fleet
Fleet depot auxiliary power supports charger supervision, communications and thermal management controls<\/figcaption><\/figure>\n

 <\/p>\n

6. How Do You Select a Power Supply for EV Charger Auxiliary Controls?<\/b><\/strong><\/h2>\n

1. Separate the power paths: Document the main vehicle-charging stage independently from low-voltage control and auxiliary branches.
\n2. Build the auxiliary load list: Record controller, HMI, meter, communication, contactor, sensor, lighting, fan and pump steady and peak loads.
\n3. Define voltage domains: Decide which loads share the primary rail and which require another voltage, local conversion or reviewed isolation.
\n4. Apply the thermal envelope: Use enclosure temperature, solar gain, airflow, duty cycle and exact-model derating to determine available output.
\n5. Specify continuity: Identify which controller or communication loads require battery-backed ride-through and calculate required backup time.
\n6. Validate charger events: Test startup, contactor operation, fan or pump inrush, communication transmission, input variation and fault recovery.<\/p>\n

ENGINEERING NOTE:<\/strong> This Solution intentionally limits WEHO products to compatible auxiliary power roles. The main charger power modules, vehicle isolation, charging protocol, safety interlocks and grid interface require a dedicated certified charging-system design.<\/p>\n

 <\/p>\n

7. Why Use a Coordinated WEHO EV Charging and Automotive DC-DC Architecture?<\/b><\/strong><\/h2>\n

Accurate product positioning: <\/strong>The architecture clearly distinguishes auxiliary supplies from the main EV charging converter.<\/p>\n

Stable control electronics: <\/strong>Segmented low-voltage rails reduce the chance that contactor or cooling loads disturb the charger controller.<\/p>\n

Flexible DC conversion: <\/strong>SD products can create a compatible secondary rail from an existing charger DC source.<\/p>\n

Optional ride-through: <\/strong>PSC can support a suitable small communication or control branch after battery compatibility is verified.<\/p>\n

 <\/p>\n

8. Frequently Asked Questions<\/b><\/strong><\/h2>\n

Can a WEHO NDR or RSP supply be used as the main EV charging module?<\/strong><\/p>\n

No. In this solution they are auxiliary AC\/DC supplies for charger controls and supporting loads, not the high-power vehicle-charging converter.<\/p>\n

What auxiliary loads are inside an EV charger?<\/strong><\/p>\n

Typical loads include the controller, HMI, communications, metering interfaces, contactor coils, sensors, lighting and cooling controls. The actual load list varies by charger design.<\/p>\n

Why use a separate DC-DC converter?<\/strong><\/p>\n

A subsystem may need another voltage, local regulation, grounding separation or reviewed isolation from the primary auxiliary rail. Confirm the exact SD model.<\/p>\n

Can contactor coils share the controller power rail?<\/strong><\/p>\n

Sometimes, but coil inrush and switching noise can cause dips or disturbances. Validate the peak load and separate the branch if required.<\/p>\n

Does every charger need battery backup?<\/strong><\/p>\n

No. Define the required behavior during an input interruption. Backup may be useful for communications or orderly shutdown but must be engineered for the specific load and battery.<\/p>\n

How should outdoor temperature affect selection?<\/strong><\/p>\n

Use the expected internal enclosure temperature, airflow and exact model derating. Outdoor ambient alone does not describe the temperature at the power supply.<\/p>\n

What should I send WEHO for a recommendation?<\/strong><\/p>\n

Provide the station input, auxiliary voltage rails, steady and peak loads, enclosure temperature, mounting space, DC bus conditions, communication ride-through requirement and target market.<\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

How to coordinate WEHO AC\/DC, DC-DC and backup branches for charger controllers, communications, meters, contactors, displays and thermal-management auxiliaries. DIRECT ANSWER: WEHO products in this solution are positioned for auxiliary and control power inside EV charging equipment, not as the main vehicle-charging power stage. A practical architecture converts the protected station input into stable low-voltage… Continue lendo Carregamento de EV e solu\u00e7\u00e3o de energia automotiva DC-DC<\/span><\/a><\/p>","protected":false},"featured_media":16547,"parent":0,"template":"","meta":{"_acf_changed":false,"_joinchat":[]},"application_category":[275],"class_list":["post-16543","application","type-application","status-publish","has-post-thumbnail","hentry","application_category-electric-vehicle-charging-station","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/application\/16543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/application"}],"about":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/types\/application"}],"version-history":[{"count":1,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/application\/16543\/revisions"}],"predecessor-version":[{"id":16554,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/application\/16543\/revisions\/16554"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/media\/16547"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/media?parent=16543"}],"wp:term":[{"taxonomy":"application_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/application_category?post=16543"}],"curies":[{"name":"wp ent\u00e3o","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}