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Recent content by Innovator

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    PWM help for PIC18F4550

    pic18f4550 pwm Hi, I have a problem here: PWM Duty Cycle = (CCPRXL:CCPXCON<5:4>) • TOSC • (TMR2 Prescale Value) 1.5ms = (CCPRXL:CCPXCON<5:4>) • 1/(48MHz) • 16 (CCPRXL:CCPXCON<5:4>) = 4500 However, (CCPRXL:CCPXCON<5:4>) is only 10 bit. Therefore it can't be > 1024. What should I do...
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    How to use PIC18F4550 to control a servo motor?

    servo pic18f4550 Hi... I am new to microcontroller. Recently, I was given a task to use a PIC18F4550 to control a servo motor. How can this be done? I've damaged quite a few of them in my school lab. I heard for a servo motor, the PWM on time for its centre position is 1.5ms. I am required...
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    PIC16f690 to PIC18F4550

    pic16f690 I found this helpful C code from: http://www.ermicro.com/blog/?p=771 However, this code can only be use for PIC16f690. I need to 'translate' this code into PIC18F4550 for analysis which can be helpful in project. I am still new to microcontroller and I was unable to 'translate' them...
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    Why the Voltage Gain of this Multistage Amplifier is Rc/Re?

    Hi everyone. I was told that the Voltage Gain of this Multistage Amplifier circuit (with negative feedback) is Rc/Re. But can somebody tell me how to derive this expression?

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