iphone 4g schematic diagram circuit

What is a circuit breaker? When is an AC power line filter or a phone line filter necessary? How can a noise filter be designed? Is it possible to create a homemade surge protector? The following circuit protection options...

This chapter includes circuit diagrams for various power supplies designed for pulsed solid-state lasers. It features units that are compatible with the widely used Hughes ruby and YAG rangefinder laser assemblies, one utilizing the flash from a disposable pocket...

This circuit illustrates the high and mid-frequency sections of a car radio. The medium wave band I operates within the frequency range of 520 to 950 kHz, while Poland II operates between 900 and 1640 kHz. The circuit employs...

The receiver, as depicted in the figure, assists patients in avoiding missed audio signals during the daytime. The receiver operates independently, and the lighting will automatically turn off. At night, the lighting signal receiver activates simultaneously with the patient's...

This design schematic illustrates a Crystal Colpitts oscillator that can be implemented using a transistor and a parallel mode crystal. In this circuit, the crystal functions as an inductance. A large value capacitive divider is utilized between the gate,...

The circuit is designed to drive an external load. A fault condition in the external load circuit could feed excessive current or voltage back into the line drive circuit. If excessive voltage appears from the load, the two zener...