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LS7263 application circuit example

Source: InternetPublisher:张小哥 Keywords: Application circuit BSP frequency conversion Updated: 2021/12/15

8.LS7263<strong>Application circuit</strong> example.gif

4 Application An application example is given in the figure. It is
  a three-phase brushless DC motor used for a warm plate driver, and its operating speed is 3600r/min.
    Although the original designed operating speed of this circuit is 3600r/min,
it can also be used at other speeds. For example, by using the LS7263-02 circuit, a government-used 2.68MHz crystal oscillator
, and adding a first-level divide-by-two circuit to the speed measurement signal , an accurate 5400r/
mn can be obtained. If the quartz crystal oscillator circuit is replaced by a variable frequency oscillator, the
LS7263 can also make the motor work at 1500r/min or lower speed.


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