555 sine wave information generator circuit diagram

Here we classify and summarize the 555 circuit according to its structural characteristics, and divide the 555 circuit into 3 categories, 8 types, and a total of 18 unit circuits. In addition to drawing the standard diagram of each circuit, pointing out their structural characteristics or identification methods,

Two 555 time base circuits are used to form a timing circuit with a long timing time and an adjustable timing time range. 1. Circuit Working Principle The circuit principle is shown in Figure 1.   Figure 1 Dual 555 time base circuit long delay circuit diagram IC1 555 time base circuit is connected to a self-e

As shown in the figure, this is a stable square wave and triangle wave generating circuit. The characteristics of this circuit are: the frequencies of the square wave and the triangle wave are almost equal, and the positive and negative amplitudes are symmetrical; the positive and negative slopes of the triangle wave

The electronic password lock uses a digital logic circuit designed with voltage comparators, 555 monostable circuits, counters, JK triggers, UPS power supplies, etc. to achieve electronic control of the door, and there are various additional circuits to ensure that the circuit can work safely, with a very high safety

　　Multi-purpose delay switch power socket 　　The power of household appliances, lighting lamps, etc. often needs to be turned on or off after different time delays. The power socket can meet such different needs. 　　working principle: 　　The circuit is shown in the figure. It consists of voltage reduction, rectification,