The invention discloses a vehicle-mounted display screen power supply delay starting circuit, method and device and a vehicle. The vehicle-mounted display screen power supply delay starting method comprises the following steps that a vehicle-mounted power supply provides power supply voltage; the transistor Q2 is switched on at the power-on moment of the time delay unit and charges the RC charging circuit; when the NPN type triode Q1 is switched on, the input voltage controls the output voltage of the NPN type triode Q1 through the first resistor R1; after the RC charging circuit completes charging, the input voltage flows into the base electrode of the NPN type triode Q1 through the current of the first resistor R1, so that the NPN type triode Q1 is saturated and conducted. According to the invention, when the delay unit receives the external input voltage, the RC charging circuit is charged, so that the NPN-type triode Q1 cannot reach the conduction voltage at a time, the NPN-type triode Q1 is conducted after the voltage rises immediately along with the completion of charging, the NPN-type triode Q1 is further enabled to be in a conduction state, and finally the effect of delay starting is realized.
本发明公开了一种车载显示屏电源延时启动电路、方法、装置及车辆,车载显示屏电源延时启动方法包括以下步骤:车载电源提供供电电压;所述晶体管Q2在延时单元上电瞬间导通并对RC充电电路进行充电;NPN型三极管Q1导通,输入电压通过第一电阻R1控制NPN性三极管Q1的输出电压;在所述RC充电电路完成充电后,输入电压经过第一电阻R1的电流流入NPN型三极管Q1的基级,使得NPN型三极管Q1饱和导通。在本申请中从而当延时单元接收到外部的输入电压的时,对RC充电电路进行充电,从而使得NPN型三极管Q1无法一下达到导通电压,随着充电的完成,电压随即升高后导通延NPN型三极管Q1,进而也使得NPN型三极管Q1实现导通状态,最终实现了延时启动的效果。
Vehicle-mounted display screen power supply delay starting circuit, method and device and vehicle
车载显示屏电源延时启动电路、方法、装置及车辆
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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