写一个HIS系统界面，要求的功能（从患者角度操作）： 注册/登录功能 挂号（选择科室，医生） 查看病历 查看药方 要求用到的技术： css用来对页面进行格式设置 jquery的事件操作 ajax读取json数据（仅用GET方法）
标签： JavaScript
上传时间： 2020-06-08
上传用户：15162964158
Li> <Li>This design uses Common-Emitter AmpLifier (Class A) with 2N3904 Bipolar Junction Transistor. Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant) Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)] Use CoupLing Capacitors to separate the AC signals from the DC biasing voltage (which only pass AC signals and block any DC component). Use Bypass Capacitor to maintain the Q-point stabiLity. To determine the value of each component, first set Q-point close to the center position of the load Line. (RL is the resistance of the speaker.)
上传时间： 2020-11-27
上传用户：
Li> <Li>拉基源码.txt
上传时间： 2020-12-23
上传用户：
Li> <Li>商品说明：进销存管理系统源码
上传时间： 2021-01-20
上传用户：
Li> <Li>1.5mm间距接插件ZH1.5表贴直插 Altium PCB封装库2D3D元件库（3D视图库），共60个器件封装，型号如下：ZH1.5-Li-2pZH1.5-Li-3PZH1.5-Li-4PZH1.5-Li-5PZH1.5-Li-6PZH1.5-Li-7PZH1.5-Li-8PZH1.5-Li-9PZH1.5-Li-10PZH1.5-Li-11PZH1.5-Li-12pZH1.5-Li-13PZH1.5-Li-14PZH1.5-Li-15PZH1.5-Li-16PZH1.5-LS-2PZH1.5-LS-3PZH1.5-LS-4PZH1.5-LS-5PZH1.5-LS-6PZH1.5-LS-7PZH1.5-LS-8PZH1.5-LS-9PZH1.5-LS-10PZH1.5-LS-11PZH1.5-LS-12PZH1.5-LS-13pZH1.5-LS-14pZH1.5-LS-15PZH1.5-LS-16PZH1.5-WI-2PZH1.5-WI-3PZH1.5-WI-4PZH1.5-WI-5PZH1.5-WI-6PZH1.5-WI-7PZH1.5-WI-8PZH1.5-WI-9PZH1.5-WI-10PZH1.5-WI-11PZH1.5-WI-12PZH1.5-WI-13PZH1.5-WI-14PZH1.5-WI-15PZH1.5-WI-16PZH1.5-WS-2PZH1.5-WS-3PZH1.5-WS-4PZH1.5-WS-5PZH1.5-WS-6PZH1.5-WS-7PZH1.5-WS-8PZH1.5-WS-9PZH1.5-WS-10PZH1.5-WS-11PZH1.5-WS-12PZH1.5-WS-13PZH1.5-WS-14PZH1.5-WS-15PZH1.5-WS-16P
上传时间： 2021-11-21
上传用户：XuVshu
Li> <Li>The PW4556 series of devices are highly integrated Li-Ion and Li-Pol Linear chargers targetedat small capacity battery for portable appLications. It is a complete constant-current/ constantvoltage Linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deLiver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination
标签： pw4556
上传时间： 2022-02-11
上传用户：1208020161
Li> <Li>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
标签： pw4554
上传时间： 2022-02-11
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Li> <Li>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
标签： pw4203
上传时间： 2022-02-11
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Li> <Li>The PW3130 series product is a high integration solution for Lithium-Lion/polymer batteryprotection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits anddelay circuits. PW3130 is put into an ultra-small SOT23-5 package and only one external componentmakes it an ideal solution in Limited space of battery pack. PW3130 has all the protection functionsrequired in the battery appLication including overcharging, overdischarging, overcurrent and loadshort circuiting protection etc. The accurate overcharging detection voltage ensures safe and fullutiLization charging.The low standby current drains Little current from the cell while in storage. Thedevice is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Polybattery-powered information appLiances requiring long-term battery Life
标签： pw3130
上传时间： 2022-02-11
上传用户：fLiang
Li> <Li>The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates Like a Linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
标签： pw2601
上传时间： 2022-02-11
上传用户：
Li>