The PW4554 is a cost-effective, fully integrated high input voltage single-cell Li-ion battery charger.The charger uses a CC/CV charge profile required by Li-ion battery. The charger accepts an inputvoltage up to 24V but is disabled when the input voltage exceeds the OVP threshold, typically 6.8V,to prevent excessive power dissipation. The 24V rating eliminates the over-voltage protection circuitrequired in a low input voltage charger
標簽： pw4554
上傳時間： 2022-02-11
上傳用戶：
PW4203 is a 4.5-22V input, 2A multi-cell synchronous Buck Li-Ion battery charger, suitable forportable application. Select pin is convenient for multi-cell charging. 800 kHz synchronous buckregulator integrates of 22V rating FETs with ultra low on- resistance to achieve high efficiency andsimple circuit design.The PW4203 is available in an 8-pin SOP package, provides a very compact system solution andgood thermal conductance
標簽： pw4203
上傳時間： 2022-02-11
上傳用戶：
The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specifications.The PW4055 No external sense resistor is needed, and no blocking diode is required due to theinternal MOSFET architecture.Thermal feedback regulates the charge current to limit the dietemperature during high power operation or high ambient temperature. The charge voltage is fixedat 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055automatically terminates the charge cycle when the charge current drops to 1/10th the programmedvalue after the final float voltage is reached. When the input supply (wall adapter or USB supply) isremoved, the PW4055 automatically enters a low current state, dropping the battery drain currentto less than 2μA. The PW4055 can be put into shutdown mode, reducing the supply current to 25μA.The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presenceof an input voltage
標簽： pw4055
上傳時間： 2022-02-11
上傳用戶：jason_vip1
The PW2606B is a front-end over voltage and over current protection device. It achieves wide inputvoltage range from 2.5VDC to 40VDC. The over voltage threshold can be programmed externally orset to internal default setting. The low resistance of integrated power path nFET switch ensures betterperformance for battery charging system applications. It can deliver up to 1A current to satisfy thebattery supply system. It integrates the over-temperature protection shutdown and auto-recoverycircuit with hysteresis to protect against over current events
標簽： pw2606b
上傳時間： 2022-02-11
上傳用戶：
The PW2228A is a high efficiency single inductor Buck-Boost converter which can supply theload current up to 1.5A. It provides auto-transition between Buck and Boost Mode. The PW2228Aoperates at 2.4MHz switching frequency in CCM. DC/DC converter operates at Pulse-Skipping Modeat light load. The output voltage is programmable using an external resistor divider, or is fixed to3.3V internally. The load is disconnected from the VIN during shutdown.The PW2228A is available in TDFN3X3-10 package.
標簽： pw2228a
上傳時間： 2022-02-11
上傳用戶：
The PW2163D is a high frequency, synchronous, rectified, step-down, switch-mode converter withinternal powerMOSFETs. It offers a very compact solution to provide a 3A continuous current over awide input supply range,with excellent load and line regulation.The PW2163D requires a minimal number of readily available, external components and is availablein a spacesaving SOT23-6 package
標簽： pw2163d
上傳時間： 2022-02-11
上傳用戶：
The PW2162 is a fully integrated, high– efficiency 2A synchronous rectified step-down converter.The PW2162 operates at high efficiency over a wide output current load range. This device offerstwo operation modes, PWM control and PFM Mode switching control, which allows a high efficiencyover the wider range of the load. The PW2162 requires a minimum number of readily availablestandard external components and is available in an 6-pin SOT23 ROHS compliant package.
標簽： pw2162
上傳時間： 2022-02-11
上傳用戶：d1997wayne
M.NT68676.2A is a monitor control board, which is suitable for Asia-Pacific market. It can supportLED/LCD panels which resolution is up to 2048×1152.M.NT68676.2A can synchronize with computer automatically. Synchronization requires thesynchronous signal which horizontal and vertical sync are separated.M.NT68676.2A can support dynamic contrast control, headphone input and Digital volume controlsimultaneously.
標簽： 樂華驅動板
上傳時間： 2022-03-13
上傳用戶：kent
ADC模數轉換器件Altium Designer AD原理圖庫元件庫SV text has been written to file : 4.4 - ADC模數轉換器件.csvLibrary Component Count : 29Name Description----------------------------------------------------------------------------------------------------ADC0800 National 8-Bit Analog to Digital ConverterADC0809 ADC0831 ADCADC0832 ADC8 Generic 8-Bit A/D ConverterCLC532 High-Speed 2:1 Analog MultiplexerCS5511 National 16-Bit Analog to Digital ConverterDAC8 Generic 8-Bit D/A ConverterEL1501 Differential line Driver/ReceiverEL2082 Current-Mode MultiplierEL4083 Current Mode Four Quadrant MultiplierEL4089 DC Restored Video AmplifierEL4094 Video Gain Control/FaderEL4095 Video Gain Contol/Fader/MultiplexerICL7106 LMC6953_NSC PCI Local Bus Power SupervisorMAX4147 300MHz, Low-Power, High-Output-Current, Differential Line DriverMAX4158 350MHz 2-Channel Video Multiplexer-AmplifierMAX4159 350MHz 2-Channel Video Multiplexer-AmplifierMAX4258 250MHz, 2-Channel Video Multiplexer-AmplifierMAX4259 250MHz 2-Channel Video Multiplexer-AmplifierMAX951 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMAX952 Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMC1496 Balanced Modulator/DemodulatorPLL100k Generic Phase Locked LoopPLL10k Generic Phase Locked LoopPLL5k Generic Phase Locked LoopPLLx Generic Phase Locked Loop水位計
標簽： adc 模數轉換 altium designer
上傳時間： 2022-03-13
上傳用戶：
能源短缺和環境惡化是人類共同面臨的挑戰。開發新型清潔能源是解決能源短缺和環境惡化的捷徑，但是太陽能能源不連續和不穩定的缺點影響其單獨使用的效果。為了解決這個問題，可以選擇使用多種性質互補的能源聯合供電，相互彌補彼此的不足，以達到連續穩定的電能輸出。基于雙輸入直流變換器（Multipk-Input Converter，MC）的光電互補系統相對于風光互補系統而言，在太陽能功率充足時，可以選擇將多余的能量進行并網，省去了蕃電池等儲能設備，也可大大節約成本，簡化控制：而且電網是全天候的，比純新能源聯合系統更加可靠。因此本文將對光電互補系統，研究其拓撲、能量管理和系統參數設計等等在隔離應用的中小功率場合，推挽變換器控制方便，結構簡單，應用廣泛傳統的多輸入推挽變換器結構復雜，成本高。通過分析MIC的生成方法，利用脈沖電壓源 Pulsating Voltage Source Ce，PⅤSC或者脈沖電流源（Pulsating Curren Source Cell，PCSC）中聯或者并聯構成簡單實用的一族多輸入推挽變換器，詳細分析了BUCK型PVSC串聯構成的雙輸入推挽變換器的小信號模型和控制方式，為了能夠提供交流輸出，本文還詳細分析了半橋逆變電路的控制方式，并推導出其數學控制模型通過分析系統的工作模式、能量管理策略和不同控制方式對系統的影響，闡叨基于雙輸入推挽變換器的光電互補系統的工作原理。并對系統軟件涉及到的太陽能最大功率跟蹤、光電互補控制和逆變控制等算法進行重點研究功率電路參數設計合理與否，直接影響著系統的性能和指標，其中推挽變壓器和濾波器的參數設計尤為重要，為此專門給出了硬件參數設計步驟；然后，根據軟件算法，設計了控制軟件流程圖來更清晰的表達軟件控制的思想軟件參數是影響系統魯棒性和快速性的另一個關鍵因素，在硬件設計的基礎上，對軟件參數進行優化設計，并利用 Simulink軟件對設計參數進行仿真分析和修正。然后采用TMS320F2809作為控制芯片，搭建了實驗原理樣機，并進行了相關驗證實驗
標簽： 推挽變換器
上傳時間： 2022-03-16
上傳用戶：
