PID INTEGER SWITCHING METHOD, PID INTEGER SWITCHING DEVICE AND FUEL JETTING CONTROL DEVICE HAVING PID INTEGER SWITCHING DEVICE

摘要

PURPOSE: A fuel jetting control device is provided to prevent the unstable state of the control action by continuously and equivalently changing the PID integer. CONSTITUTION: The PID control circuit(8) is formed by:a first resistor(21) for the PID integer; a second resistor(22) for the PID integer; a first condenser(23) for the PID integer; and an integer switching circuit(11) serially installed between an inverting input terminal and an output terminal of an operating amplifier(7a) to make the first resistor(21) as the inverting input terminal and the first condenser(23) as the output terminal, and driven according to the repeated pulse signal outputted from a port output terminal.