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Also known as a digital amplifier, the Class-D amplifier is characterized by its compact size and high efficiency. This circuit utilizes a 555 timer IC to create a Class D amplifier. The 555 timer operates as a controllable multivibrator,...
The circuit utilizes a Zener diode (D1) for overvoltage protection and a diode rectifier bridge for reverse voltage protection. The 1.4V drop across the diodes will result in a maximum voltage loss, meaning that the supply voltage (VPS) must...
A simple 12V battery charger circuit can be designed using a TIP3055 power transistor to limit the current to the battery. The circuit turns off when the battery voltage reaches approximately 14V or if the current exceeds 2A. This...
A discussion has been initiated regarding the diagrams being created. The initial set pertains to the DOSD (Dual OSD). Following the discovery of a potential issue, these new diagrams will facilitate safe wiring of the DOSD, thereby avoiding the...
The modification of a basic speed control circuit for small DC permanent-magnet motors implements a maximum current limit during normal operating conditions and a reduced current limit during stall conditions. This design aims to limit the dissipation of series...
The microphone amplifier/modulator is built around the LM324, which is a quad operational amplifier that provides sufficient quality amplification for the voice captured by the condenser microphone. The LM324 is a versatile quad op-amp that consists of four independent, high-gain,...