MICROCOMPUTER CONTROL TYPE ELECTRIC EQUIPMENT

摘要

PURPOSE:To suitably execute the function of an equipment regardless of the value of power source voltage by using the microcomputer for controlling the equipment, and a supplying approximately the constant voltage to a load. CONSTITUTION:When an input voltage Vin from an power source 4 is within the scope from -40%-40% to a primary rating voltage V1, Triac switches 5-13 are selectively turned on and the tap to output the voltage approximately equal to a load rating voltage V1 is made effective. Thus, even when the input voltage Vin from the power source 4 is changed, the voltage approximately equal to a load rating voltage Vn is impressed to a load 2. Consequently, a washing motor, a water supplying valve, an exhaust valve, etc., can be suitably controlled, the sufficient cleaning performance can be obtained and the locking and the overheating of the washing motor can be prevented without fail.