Here are some of the PIC 8 bit uC datasheet technical specifications.
They are taken from Microchip datasheet of the respective uC.
Tuesday, November 12, 2013
PIC 8-bit Popular Microcontroller Specifications
Here are some of the PIC 8 bit uC datasheet technical specifications.
They are taken from Microchip datasheet of the respective uC.
Wednesday, May 29, 2013
CD/DVD Drive Motor Driver hack to run its own 3 phase BLDC motor
You can use your old CD Drive motor to run it as fan or for any other motor applications, simply by 'Hacking' its own motor driver which is on the board of the CD Drive .
You simply need to download the datasheet of the motor driver IC which is on your board (as it varies) by Googling it around.(If available on the net).
Generally motor driver IC has a small heat sink on the IC itself (something like silver colored plate or solder on it). You can distinguish from other IC's that way.
I found mine.My motor driver IC was MP63028FP.
Find the current control or speed control pin of the motor driver through datasheet.
And as per the IC requirement (by looking datasheet) provide it analog voltage with the help of potentiometer/rheostat/preset.
In my case it was pin 26 ( i.e. spindle control voltage input).
I provided it a voltage ranging from 0 to 5V through a 100k preset.
Actually, I overrided the I/P coming from other control IC of the board to the motor driver by simply sodering the o/p coming from preset to that pin.
Also,I have added a small heat sink on the driver IC by simply making a hole on the heat sink and then putting the hole on the rectangular heat sink area provided on the top of the IC ,then I poured some solder.
You will not require to add a heat sink if you run it at low speed/current (<0.5A).
Provide the power supply to the board as per requirement. (i.e. 12V, 5V, GND).
You can provide the power supply through 12V source and voltage regulator IC 7805 to get 5V supply for it.
I am using variable voltage regultor IC LM317.
Thats all, you have done it.
As you increase the voltage value your motor will start running as per the preset value.
Now I am using it as a small 12V DC powered table fan by attaching a self made blade to it.
Comment if you like to know something else about this.
You simply need to download the datasheet of the motor driver IC which is on your board (as it varies) by Googling it around.(If available on the net).
Generally motor driver IC has a small heat sink on the IC itself (something like silver colored plate or solder on it). You can distinguish from other IC's that way.
I found mine.My motor driver IC was MP63028FP.
Find the current control or speed control pin of the motor driver through datasheet.
And as per the IC requirement (by looking datasheet) provide it analog voltage with the help of potentiometer/rheostat/preset.
I provided it a voltage ranging from 0 to 5V through a 100k preset.
Actually, I overrided the I/P coming from other control IC of the board to the motor driver by simply sodering the o/p coming from preset to that pin.
You will not require to add a heat sink if you run it at low speed/current (<0.5A).
Provide the power supply to the board as per requirement. (i.e. 12V, 5V, GND).
You can provide the power supply through 12V source and voltage regulator IC 7805 to get 5V supply for it.
I am using variable voltage regultor IC LM317.
Thats all, you have done it.
As you increase the voltage value your motor will start running as per the preset value.
Now I am using it as a small 12V DC powered table fan by attaching a self made blade to it.
Comment if you like to know something else about this.
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