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PWRGND的用途是什麼

@copilot PWRGND的用途是什麼
2y
"PWRGD"(也稱為 Power Good)是一個常見的電源標準訊號,用於指示電源是否處於正常工作狀態。該訊號用於讓系統其他部分當電源穩定且可供處理器或其他每個系統組件使用時,知道可以開始或繼續運行。如果"PWRGD"訊號為低電壓,意味著供電不正常(可能由於開機過程中電壓還未穩定,或者是電源供應器故障),系統中的其他部分應該停止運行或進入安全模式,以防止因電源問題而導致的損壞。
在這個電路中,"PWRGD"信號是由電壓調節器U1產生的。它與電容C2和電阻R2連接,形成一個單元來過濾這個訊號並抑制電源雜訊。
請注意,這是一個常見的"PWRGD"訊號解釋和使用,具體應用可能依電路的實際需求和設計有所不同。
2y
根据描述,电源控制信号"PWRGD"属于稳压器U1的标准功能。这个信号在电源稳定且可供设备使用时为高电平,反之如在开机时电源尚未稳定或电源供应器有故障时则为低电平。这可以让设备知道何时开始或延迟工作,以避免在电源不稳定时运行可能导致设备损坏。
"U1" 是该电路中的电源稳压器,并且也负责产生 "PWRGD" 信号。具体来说,此稳压器型号为 MCP1726,由 Microchip Technology Inc. 生产。它是一款6V的输入电压,1A电流和5V最大输出电压的稳压器。
"R2" 是一个抵抗,具有 12k 提供的阻值,由 TE Connectivity 制造。根据连线的描述,它和"C2","U1"的"GND"和"C1"以及"PWRGD"在同一个网络连接,可能的作用是为了通过限制电流或者电压阀值,来做出保护设备不被过大电流或者电压破坏的效果。
"C2" 是一个具有 1n 电容的电容器,由 TDK 生产。它主要的作用应该是过滤掉电源电压中的噪声(尤其是在高频时),从而稳定电源电压。
"C1" 是另一个电容器,具有 0.1u 电容,由 TDK 制造。它的作用可能是为了平滑稳压器"U1"的输出电压。在电源适配器中,输出电容器常常被用来平滑输出电压,从而减少电压波动。
以上的假设根据电路图的一般规则和你提供的组件信息来推测的,如果你有更多的信息,例如元件间的具体连线或是该电路的具体应用目标等,那么可能会有更准确的分析结果。
2y
分別幫我介紹名詞
2y
R2
Resistance
12k Ω
R1
Resistance
84.5k Ω
C1
Capacitance
0.1u F
C2
Capacitance
1n F
U1
P1


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
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    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
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Sound White Liquid Breathing Apparatus

Sound White Liquid Breathing Apparatus
Description

Created
Last updated by martinhaung
1 Contributor(s)
martinhaung

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