hai everyone..
i need help about voltage regulator,
i have done built my circuit using PIC18F252 that have 4 switchs,1 potential meter and 1 LCD grafiq(i use 4 bit to transmit data), 1dc motor(12v supply)
my problem here is my voltage regulator become heat when power supply on,but all my input and output of my PIC working normally,i did not expect short circuit because this circuit working as i desired.
But before this,i only put switchs and dc motor,the voltage regulator not heat but after i add 1 potential meter and lcd,it become heat..i have check my connection,no short circuit.
i use 78L05 voltage regulator, and use 12Volt at input voltage regulator,and i have measure the output of voltage regulator =5V(even voltage regulator over heat).
i do not know why it happen and how to avoid the voltage regulator not over heating..pls somebody help me
i need help about voltage regulator,
i have done built my circuit using PIC18F252 that have 4 switchs,1 potential meter and 1 LCD grafiq(i use 4 bit to transmit data), 1dc motor(12v supply)
my problem here is my voltage regulator become heat when power supply on,but all my input and output of my PIC working normally,i did not expect short circuit because this circuit working as i desired.
But before this,i only put switchs and dc motor,the voltage regulator not heat but after i add 1 potential meter and lcd,it become heat..i have check my connection,no short circuit.
i use 78L05 voltage regulator, and use 12Volt at input voltage regulator,and i have measure the output of voltage regulator =5V(even voltage regulator over heat).
i do not know why it happen and how to avoid the voltage regulator not over heating..pls somebody help me