一文詳解負電壓是怎么產生的
電子電路中，負電壓的產生往往需要特殊配置，但有一種利用運算放大器和地線的簡單方法，將運算放大器配置為反相放大器，輸入端接地，通過調整電阻和電源電壓的參數，就能得到相對于地線的負輸出電壓。不過這只是負電壓產生的其中一種方式，實際應用中，負電壓的產生要根據具體的應用場景和電路設計來選擇合適的方法。
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HTD8233 單通道直流有刷電機驅動芯片
HTD8233是一款直流有刷電機驅動器，適用于打印機、電器、工業設備以及其他小型機器。兩個邏輯輸入控制H橋驅動器，該驅動器由四個N-MOS組成，能夠以高達4.5A的峰值電流雙向控制電機。利用電流衰減模式，可通過對輸入進行脈寬調制(PWM) 來控制電機轉速。如果將兩個輸入均置為低電平，則電機驅動器將 進入低功耗休眠模式。 -
GS4558 DUAL LOW NOISE OPERATIONAL AMPLIFIERS
The GS4558 consists of two high performance operational amplifiers. The IC features high gain, low equivalent input noise voltage, high input resistance, excellent channel separation, wide range of operating voltage and internal frequency compensation. It can work with ± 18V maximum power supply voltage or single power supply up to 36V. The GS4558 is available in DIP-8 and SOP-8 packages. -
LMV321/358/324 CMOS Rail-to-Rail IO Opamp with RF Filter
The LMV321/358/324 family have a high gain-bandwidth product of 1MHz, a slew rate of 0.6V/μs, and a quiescent current of 40μA/amplifier at 5V. The LMV321/358/324 family is designed to provide optimal performance in low voltage and low noise systems. They provide rail-to-rail output swing into heavy loads. The input common mode voltage range includes ground, and the maximum input offset voltage is 3.5mV for LMV321/358/324 family. -
AT2401C: 2.4GHz Zigbee 射頻前端芯片
AT2401C 是一款面向 Zigbee，無線傳感網絡以及其他 2.4GHz 頻段無線系統的全集成射頻功能的射頻前端單芯片。AT2401C 是采用 CMOS 工藝實現的單芯片器件，其內部集成了功率放大器 (PA)，低噪聲放大器(LNA)，芯片收發開關控制電路，輸入輸出匹配電路以及諧波濾波電路。該芯片的常規應用主要包括工業控制自動化，智能家居和符合 RF4CE 協議的射頻系統中。由于該芯片有非常優越的性能，高靈敏度和效率，低噪聲，產品尺寸小以及低成本，使得 AT2401C 對于頻率帶寬內的應用而言成為完美的解決方案。AT2401C 的功能控制邏輯電路非常簡單，而且使用了少量的外圍器件，可以非常方便系統的整體集成設計。 -
LN6216 Output Current CMOS Regulator with Low Power and Low Differential
LN6216 series is a positive voltage regulator with low voltage difference, high precision output voltage and low current consumption developed by using CMOS technology. Due to the built-in low on state resistance transistor, the voltage difference is low and the output current is large. In order to make the load current not exceed the current capacity of the output transistor, overload current protection circuit and short circuit protection circuit are built in. High density installation is possible due to small packages such as SOT89-3L, SOT23-3L, SOT23-3B. -
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