Everyone has a chip-of-shame: it’s the part that you know is suboptimal but you keep using it anyway because it just works well enough. Maybe it’s not what you would put into a design that you’re ...

Although the ubiquitous LM386 IC was designed to be used as an audio amplifier, it has a number of undocumented characteristics that can be exploited to create simple radio receiver circuits that ...

LM386音频放大器IC可用于设计简单的无线电接收器电路，并且这些电路还能提供惊人的高性能。这些电路可用于接收中、短波波段的AM、CW和SSB射频传输，而不需要外部天线。 尽管无处不在的 ...

Once ubiquitous, the incandescent light bulb has become something of a lucerna non grata lately. Banned from home lighting, long gone from flashlights, and laughed out of existence by automotive ...

What is the LM386 audio amplifier? The integrated chip LM386 is a low power audio frequency amplifier requiring a low level power supply (most often batteries). It comes in an 8-pin mini-DIP package.

The bipolar NE555 timer IC is widely used in inductorless dc-dc converters, most frequently in doubling and inverting converters. However, another very popular IC, the LM386 audio amplifier, may be a ...

This article is part of the Ideas for Design Series: Vol. 3, No. 7. This simple, robust, and low-cost signal generator, based on the LM386 power amplifier IC, provides a trio of audio-band signals ...

A是差分式放大电路，并且Q1,Q2,Q3,Q4是PNP三极管，它们合成了PNP三极管，R4,R5为发射极电阻，差分式的ic由Q5,Q6两个NPN三极管组成的镜像电流源提供，并作为有源负载Rc增大输入级Au。 采用镜像电流 ...