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USB Flash Drive Development Trends Jun 20, 2017

USB Flash Drive development trends
USB Flash Drive development direction is high frequency, high reliability, low power consumption, low noise, anti-interference and modular. As the USB Flash Drive light, small, thin key technology is high frequency, so the major foreign USB Flash Drive manufacturers are committed to the simultaneous development of new high-intelligent components, in particular, to improve the secondary rectifier device loss, and in the Power ferrite (Mn? Zn) materials to increase scientific and technological innovation to improve the high frequency and large magnetic flux density (Bs) to obtain high magnetic properties, and the miniaturization of the capacitor is also a key technology. SMT technology makes the USB Flash Drive has made considerable progress in the circuit board on both sides of the layout components to ensure that the USB Flash Drive light, small, thin.
USB Flash Drive high frequency is bound to the traditional PWM switching technology innovation, to achieve ZVS, ZCS soft-switching technology has become the mainstream USB Flash Drive technology, and greatly improve the efficiency of the USB Flash Drive. For high reliability indicators, the US USB Flash Drive manufacturers to reduce operating current, reduce the junction temperature and other measures to reduce the stress on the device, making the product greatly improved reliability.
Modularization is the overall trend of the development of USB Flash Drives, modular power can be used to form a distributed power system, can be designed as N + 1 redundant power supply system, and to achieve parallel capacity expansion. For the USB Flash Drive to run the noise of this shortcoming, if the pursuit of high frequency alone will continue to increase its noise, and the use of part of the resonant conversion circuit technology, in theory, can achieve high frequency and reduce noise, but Part of the resonant conversion technology is still the practical application of technical problems, it is still necessary in this area to carry out a lot of work to make the technology to be practical.
USB Flash Drives are a power source that uses modern power electronics to control the turn-on and turn-off times of the switch and maintain a stable output voltage. The USB Flash Drive is typically composed of a pulse-width modulation (PWM) control IC and MOSFET. USB Flash Drives and linear power compared to the cost of both the output power increases with the increase, but the growth rate of the two different. Linear power costs at an output power point, but higher than the USB Flash Drive, which is called the cost of reversal point. With the development and innovation of power electronics technology, USB Flash Drive technology is also constantly innovate, this cost reversal point increasingly move to the low output power side, which USB Flash Drive provides a broad space for development.
USB Flash Drive high frequency is the direction of its development, high frequency to make USB Flash Drive miniaturization, and
So that the USB Flash Drive into a wider range of applications, especially in the field of high-tech applications, to promote the high-tech products, miniaturization, lightweight. In addition, the development and application of USB Flash Drives are of great significance in conserving energy, saving resources and protecting the environment. The power electronics used in the USB Flash Drive are mainly diodes, IGBTs, and MOSFETs. SCR in the USB Flash Drive input rectifier circuit and a soft start circuit in a small amount of application, GTR drive difficult, low switching frequency, and gradually replaced by IGBT and MOSFET.