How to Modify the Clock Frequency to Decrease Microcontroller Power Consumption

 

How to Modify the Clock Frequency to Decrease Microcontroller Power Consumption

Developers continually have project handing over high stages of functionality and performance even as concurrently maximizing battery existence. Also when it comes to digital products, the maximum crucial characteristic is the battery consumption. It need to be as much less as viable to boom the device operation time. The strength control may be very important in transportable and battery-powered programs. Differences of microampere consumptions can result in months or years of operating life which can growth or decrease the popularity and brand of the product within the marketplace. The growth in merchandise call for more green optimization of battery use. Nowadays, customers demand longer battery backup with compact length of merchandise so manufacturers are that specialize in smaller battery length with super long battery lifestyles that is a questionable undertaking. But, the builders have come up with Power Saving Technologies after going thru many factors and important parameters affecting battery lifestyles.()

There are many parameters which impacts the battery usage together with microcontroller used, operating voltage, cutting-edge consumption, ambient temperature, Environmental condition, peripherals used, rate-recharge cycles and so on. With the fashion of smart products coming in the market, it's far very important to first focus on the MCU used, to optimize battery lifestyles. The MCU turns into essential part in terms of saving power inside the small sized merchandise. So it's miles endorsed that start with the MCU first. Now, MCU comes with the distinct strength saving strategies. To recognize more approximately minimizing Power Consumption in Microcontrollers(MCU), refer preceding article. This article majorly makes a speciality of one of the essential parameter for decreasing the strength consumption in microcontroller, this is modifying the clock frequency which desires to be taken care while using MCU for low energy applications.

Why to Modify Clock Frequency in Microcontrollers?

Out of many parameters noted above, the choice of clock frequency play very important position in saving power. The have a look at indicates that incorrect choice of running frequency of microcontrollers can result in big percent (%) loss of battery strength. In order to keep away from this loss, the developers need to take care of the proper frequency choice to run the microcontroller. Now, it isn't necessary that the frequency choice may be executed to start with, even as putting in place microcontroller, whereas it may be chosen in between the programming also. There are many microcontroller which comes with bit choice to pick out preferred running frequency. Also the microcontroller can run at a couple of frequencies, so the developers have option to select suitable frequency depending upon the utility.

What is the effect of selecting a couple of frequencies on the performance?

There is no doubt that choosing diverse frequencies will have an effect on the performance of microcontroller. As in terms of microcontroller, it's far very widely known that frequency and overall performance are proportional. It manner that, more the frequency may have much less code execution time and for that reason greater speed of program execution. So now, it's miles very clean that if frequency is modified then the performance can even trade. But it isn't always essential that developers want to paste at one frequency just for sake of better performance of microcontroller.

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