KR970002120A - Cooking control device of electronic cooker - Google Patents

Abstract

The present invention relates to a cooking control apparatus for an electronic cooker.

In the conventional cooking control apparatus of the electronic cooker, when the first container is in a poor position or a container in which induction heating is poor, the voltage (current) stress of the semiconductor switch increases and a reset signal is output from the inverter controller to prevent damage to the semiconductor switch. There was a problem of stopping the operation of the inverter by generating it, and secondly, depending on the type of vessel or the position of the vessel, the inverter output has only on / off selection, and active control according to the load state is not possible. If the inverter is located on the boundary line of on / off, the inverter repeats the on / off, and the cooker has an unstable operation of repeating the operation and stop. The third is that the overvoltage and overcurrent protection circuit simply switches the semiconductor switch. It is only for protection, and it is impossible to control the output of the inverter properly according to the load state, Users are also judged on the improper container was a difficult problem.

Therefore, the present invention is to improve the above problems of the prior art by detecting the current flowing through the inertial diode to determine the type and position of the container by itself, the inverter actively responds to the load of the various states, the electronic cooker In addition to the protection of the inverter, the output of the inverter is properly controlled to the operating limit of the inverter even under an inadequate load, and the state of the vessel is transmitted to the microcomputer so that the user can check the state of the vessel through the display unit.

Description

Cooking control device of electronic cooker

Since this is an open matter, no full text was included.

FIG. 3 is a block diagram of a cooking control apparatus for an electronic cooker according to the present invention. FIGS. 4A to 4D show a state of current flowing through an inertial diode according to the position of a container in FIG. (A) and (b) are the output state diagrams of the current level comparison means in FIG. 2, FIG. 6 is a configuration diagram of the container state display circuit, and FIG. 7 is a flowchart of the operation processing process of FIG.

Claims (1)

Current detecting means for detecting a current flowing through the inertial diode by a current detecting resistor in series with the inertial diode to detect a current flowing through the inertial diode; Current level comparison means for comparing the ratio of switching element currents detected by the means to a set value, load state detection means for discriminating the state of the load according to the comparison result value output from the current level comparison means, and the current level Inverter control means for controlling the output of the inverter in accordance with the comparison result output from the comparison means, the signal output from the overvoltage and the object detection means and the control signal of the microcomputer, and interface the signal with the inverter control means and the load state detection means A microcomputer interface means for inputting a signal from the microcomputer; A microcomputer for controlling the inverter control means by a signal input and output through a interface means, and display means for displaying a state of a load and a state of a container to a user by a control signal of the microcomputer Cooking control device of the cooker. ※ Note: The disclosure is based on the initial application.