PT6703C

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DC DC converters are electric devices used to convert a given DC voltage level to another DC voltage level. The DC DC converter is designed to take a signal from an existing power source and then convert it to a new and required voltage level. This process is based on a range of processes, such as galvanic isolation, transformers, rectifiers, inverters, and switching regulators. The PT6703C is a DC DC converter developed by PowerTech, and it is widely used in a variety of applications where efficient, reliable and accurate DC voltage level conversion is required. In this article, we will look at the application fields and working principle of the PT6703C.

Application fields

The PT6703C is a high-performance, low-noise, and compact DC DC converter specifically designed for industrial and automotive systems where high efficiency and high accuracy of the output voltage is needed. It is mainly used for computing, communication, automotive, medical, and instrumentation application fields. It can provide a steady and clean DC voltage supply to system electronics such as digital photo cameras, hard disk drivers, and portable computers, as well as providing power for instrumentation and factory automation.

Working principle

The PT6703C DC DC converter is a switching regulator with a built-in power MOSFET. It works based on the concept of pulse width modulation (PWM) and its built-in PWM circuit to control the power switch. The operating principle of the DC DC converter is to connect the input voltage to the inductor L. When the input voltage is applied to the inductor, current starts to flow. The current generates a magnetic field stored in the inductor according to Faraday’s Law. This stored energy is then stored in the output capacitance. As more current is delivered to the load, the energy stored in the capacitance is supplied to the load. This is repeated until the operation of the converter goes from one state to another.

The PT6703C DC DC converter can provide a precise and stable output voltage. To do this, it utilizes a self-imposed zero-voltage switching circuit. This circuit provides precise current-sampling resistors and a PWM-adjustable comparator that samples and compares the current on the output side with the reference value. When the current reaches a certain level, the switch is automatically changed from one state to another, and this change is used to control the output voltage. Without this circuit, the output voltage would oscillate with the input voltage and this would cause power losses and lay tremendous strain on the components. This self-imposed zero-voltage switching circuit ensures a high level of power-supply stability and reduces power-supply noise.

Conclusion

The PT6703C is a versatile DC DC converter developed by PowerTech to provide efficient, reliable and accurate DC voltage level conversion. It is designed to convert a given DC voltage level to another voltage level and is widely used in industrial and automotive systems where high efficiency and high accuracy of the output voltage is needed. The built-in power MOSFET in the converter, together with a self-imposed zero-voltage switching circuit, helps the converter maintain a precise and stable output voltage. The PT6703C is an ideal choice for computing, communication, automotive, medical, and instrumentation applications.

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