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    LED power supply applications in other areas

    Writer:www.turnmax-tech.comSource:东莞市腾茂电子有限公司 Date:2016-10-29
    Power adapters are common in life and industrial manufacture for electronics, electrical appliances, machinery, such as the provision of current power transformation equipment, power adapter types, main switch power supply and linear power supply, the two power adapter manufacturer below small make up to introduce to you.
     
    Switch power supply and linear power supply:
     
    1, switching power supply is the use of modern electronic technology, control switch tube opened and shut off time ratio, to maintain stable output voltage of a power supply, power adapter, switching power supply is generally controlled by pulse width modulation (PWM) IC and MOSFET.
     
    Advantages: high efficiency, small size, can work in a wide voltage range.
     
    Weakness: the power circuit interference is bigger, the event of a failure maintenance is difficult.
     
     
    2, linear power supply is an alternating current through the transformer transformer, rectifier circuit dc voltage of the rectifier filter are not stable, the power adapter to achieve high-precision dc voltage, voltage feedback circuit to adjust output voltage must be made.
     
    Advantages: the power mature technology, simple circuit, and there is no switch power supply with the interference and noise.
     
    Weakness: the voltage feedback circuit is working in the linear state, adjust the tube power consumption is large, low conversion efficiency, by using inductive transformer weight equipment.
     
    The difference between the power adapter the two types of methods from the size, weight, the range of output voltage difference to make the difference.
     
     

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