Sinrace Power Supply Technology (Shenzhen) Co., Ltd.

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What  true advantages you will have if you choose us?

We are a professional manufacturer of  power supply  with 16years' history already, and we are always with you for offering you answers on power supply questions and supplying you with enthusiastic services. The emphasis and the main responsibility for us is to meet our customers's needs unceasingly.We believe those customers are our partners who shall build  long-time and reliable business relationship with us.

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The advantages and disadvantages of PWM application PDF Print E-mail
PWM (Pulse Width Modification) is a traditional light adjusting technology, which uses simple digital pulses to switch on and off LED driver from time to time. The system only needs to supply wide and narrow digital pulses in order to easily change the output for adjusting LED brilliance. The advantage is that the technology is able to provide high quality white light with high efficiency through easy application. But there is a fatal disadvantage: it is susceptible to EMI (electromagnetic interference), sometimes even produces audible noises.
 
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