78ST112SC

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DC DC Converters

DC-DC converters are electronically controlled devices used to change the voltage of a power source from one level to another. In general, these devices can be used to transform from higher voltage and lower current to lower voltage and higher current, or visa versa. In most cases, these converters are used to transform voltages of different levels to another or regulate the voltage to its original level. DC-DC converters can be divided into three main categories: Isolated Converters, Non-Isolated Converters, and Combination Converters.

The 78ST112SC DC-DC converter is an isolated converter that uses pulse width modulation (PWM) to regulate the output voltage. It features a wide input voltage range of 4.5V to 8V, adjustable output voltage from 0.8V to 5V and high efficiency of up to 95%. The 78ST112SC offers numerous key features like over-current protection, over-temperature protection, under-voltage protection, over-voltage protection, and over-power protection.

The 78ST112SC can be used in several different applications including portable electronic devices, cellular phones, notebook computers, and servers. In addition, it enhances system stability, high efficiency, and longer battery life making it the perfect choice for high-power and low-power applications.

The working principle of the 78ST112SC is based on an internal oscillator that creates monolithic pulses and PWM waveforms. These pulses and waveforms are regulated and output by controlled power MOSFETs that convert the input and output voltages. The 78ST112SC requires half bridges of non-isolated PWM for synchronization, and a regulated voltage signal is used to control the output voltage. Furthermore, the output voltage is generated through the duty cycle of the pulse signals.

In conclusion, the 78ST112SC is an excellent isolated DC-DC converter suitable for a variety of applications due to its wide input voltage range, adjustable output voltage, and high efficiency. Its working principle is based on monolithic pulses, PWM waveforms, power MOSFETs and dutycycle of pulse signals which helps to convert and adjust the input and output voltages.

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