Drip coffee maker control circuit and integrated MCU

Abstract

The invention disclose a drip coffee maker control circuit and an integrated MCU.The drip coffee maker control circuit comprises a relay driving unit and an internal voltage detecting unit which are integrated into a whole, and when a high level is input into the relay driving unit, and the internal voltage detecting unit detects that the power supply voltage reaches the preset voltage, a relay is controlled to be switched on; when a low level is input into the relay driving unit, the relay is controlled to be switched off.According to the drip coffee maker control circuit and the integrated MCU, the functions achieved by multiple separated electronic components are integrated, and particularly, the relay driving unit is integrated, so that an electronic board is small in size, the electronic board production process is simplified, the electronic board quality is improved, the production cost is reduced, only when a high level is input into the relay driving unit and the power supply voltage reaches the preset voltage, the relay is controlled to be switched on, control over a drip coffee maker is more reliable, the control performance is improved, when the low level is input, the relay is controlled to be switched off, automatic control over the relay is achieved, and reduction of power consumption is promoted.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a drip coffee machine control circuit and an integrated MCU. Background technique [0002] The drip coffee machine is a classic drip filter, which has the advantages of simplicity, efficiency and reliability, and is most suitable for home, office and dormitory use. [0003] The work of the drip coffee machine is realized by the control of the electronic board. The electronic board usually includes a single-chip microcomputer, a voltage stabilizing circuit, a relay drive circuit, a temperature controller detection circuit and a voltage detection circuit. On the electronic board of the existing drip coffee machine, the above-mentioned Single-chip microcomputers or various circuits are separate electronic components. For example, the Chinese invention patent CN101708108B discloses a coffee machine, including a relay, a heating tube, a temperature controller and a thyristor. D...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing coffee machine circuit has a large volume of separation components, which increases the area of ​​the electronic board, increases the difficulty of the design of the whole machine, and has many processing procedures, high cost, and increased difficulty in product quality control. The problem

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