Electronic kitchen timer

Abstract

The invention relates to an electronic kitchen timer. The electronic kitchen timer is characterized by comprising a 12V DC power source, an oscillator, a frequency divider circuit, a reset circuit and a buzzer alarm and work station indication circuit. Models of the oscillator and a fourteen-level binary frequency divider IC1 of the frequency divider circuit are CD4060. The time-delay time of a time-base circuit for designing and manufacturing a time-delay circuit is not greater than 30 minutes, the use scope of the time-base circuit is greatly limited, for solving a technical problem of long time-delay breakthrough difficulty existing in the time-base circuit, the fourteen-level binary frequency divider and common components are employed in the electronic kitchen timer, a low-capacity capacitor is realized, and so super-long time time-delay, fixed-time random time adjustment and convenient and rapid operation are realized.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to an electronic kitchen timer. Background technique [0002] There are two main types of timers commonly used in the kitchen, one is to use mechanical timing; the other is to use electronic timing. The advantages of the mechanical timer: one is that it does not use batteries; the other is that it is easy to operate and use. Its defects are: the timing is not accurate enough, the alarm time is short and the sound is relatively small. The advantages of the electronic timer: First, the timing accuracy is high; second, the alarm sound is loud. Its defect is: the one, circuit structure is complicated; Two, needs to use battery to power it for it; [0003] Usually, the time base circuit is used to design and manufacture the delay circuit, and the delay time can only be within 30 minutes, which greatly limits the use range of the time base circuit. In order to effectively solve the ...

AI Technical Summary

Problems solved by technology

Its defects are: the timing is not accurate enough, the alarm time is short and the sound is relatively small

Its disadvantages are: first, the circuit structure is complex; second, it needs to be powered by a battery; third, the operation is not convenient and quick enough when using it

[0003] Usually, the time base circuit is used to design and manufacture the delay circuit. The delay time can only be within 30 minutes, which greatly limits the scope of use of the time base circuit.

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