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MR Photoelectricity is known as "The Weather Vane" of LED market trends.

Different Application Decision for LED Display Driver

Through linear regulators to convert the voltage power consumption problems, this way is fit for the demands for avoiding noise (such as car audio) and thus cannot use the switch mode conversion circuit. And the characteristics of the switch mode conversion efficiency is very high, but it also has the problem of noise, so choose what kind of transformation way depends on what kind of application.


In general, the efficiency of charge pump drive way changes with the change of the input voltage, in the application of large range of voltage change, its efficiency is low; And in the application of voltage variation range is small, only when the input and output voltage is a multiple relationship between, it's to achieve maximum efficiency, but it is difficult to achieve in the practical application of battery power. In contrast, the inductance of the conversion efficiency is not affected by voltage disturbance, application limits is less than the charge pump, so the conversion circuit adopts the inductive method.


Usually, high integration aims to improve performance, but at high power, high integration in order to satisfy the large current will increase the chip area, while increasing costs also faces the problem of heat dissipation, so, how to balance the relationship between the power and integration issue is the driver IC design. Driver IC to the chip process improvement to meet the cost at the same time, to improve the packaging solution to the problem of heat dissipation.

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