IMPROVED MICROPROCESSOR POWER SUPPLYING SYSTEM HAVING A PROGRAM-TYPE POWER SUPPLIER AND A PROGRAM-TYPE BROWN OUT SENSOR

摘要

PURPOSE: A microprocessor power supplying system is provided to prevent an improper programming of an operation voltage level and a brown out reference voltage level. CONSTITUTION: A microprocessor power supplying system comprises a program-type power supplier, a program-type brown out sensor and a control unit. The program-type power supplier(30) supplies a microprocessor with a power. The program-type brown out sensor(20) is connected to the program-type power supplier, and senses when an operation voltage goes below a brown out reference voltage, to then provide a brown out signal output(26) as the sense result. The control unit(40) is connected to the program-type power supplier and the program-type brown out sensor, and sets the operation voltage and the brown out reference voltage.