CN212210977U

CN212210977U - ADC detects and bee calling organ multiplexing circuit

Info

Publication number: CN212210977U
Application number: CN202021295836.6U
Authority: CN
Inventors: 饶远; 周凌峰
Original assignee: Foshan Jindaming Technology Co ltd
Current assignee: Foshan Jindaming Technology Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-12-22
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a ADC detects and buzzer multiplex circuit, including power module and with main control module, ADC detection module and the buzzer module that power module electricity is connected, power module is connected with the main control module electricity, and main control module has ADC detection port, and ADC detection module and buzzer module all are connected with the same ADC detection port electricity of main control module, and ADC detection module can detect the analog quantity to feed back to main control module through ADC detection port, and main control module can pass through the work of ADC detection port control buzzer module; by sharing one I/O port for the ADC detection analog quantity and the buzzer, the use of the I/O port is reduced while the ADC detection and the buzzer control are finished, and the occupation of chip resources is reduced.

Description

ADC detects and bee calling organ multiplexing circuit

Technical Field

The utility model relates to a household electrical appliances field, in particular to ADC detects and bee calling organ multiplexing circuit.

Background

In the existing household appliance type product, the ADC detection and the buzzer are respectively controlled by two I/O ports, and when the I/O port of the main control chip is just short of a pin position and needs to be replaced by a larger one for packaging, the chip resources are occupied in application, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a ADC detects and buzzer multiplex circuit can let ADC detect and buzzer sharing IO mouth, reduces the use of IO mouth when accomplishing ADC detection and buzzer control, reduces occuping of chip resource.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: the utility model provides a ADC detects and buzzer multiplex circuit, including power module and with host system, ADC detection module and the buzzer module that the power module electricity is connected, power module is connected with the host system electricity, and host system has ADC test port, and ADC detection module and buzzer module all are connected with host system's same ADC test port electricity, and ADC detection module can detect the analog quantity to feed back to host system through ADC test port, host system accessible ADC test port control buzzer module's work.

Preferably, the main control module comprises a main control chip U1 with the model of BF7612BM 16.

Further, the buzzer module comprises a buzzer BUZ1, a resistor R10 and a ceramic chip capacitor C2, one end of the ceramic chip capacitor C2 is electrically connected with a pin 3 of the main control chip U1, the other end of the ceramic chip capacitor C2 is electrically connected with one end of a resistor R10, the other end of the resistor R10 is electrically connected with a control end of the buzzer BUZ1, and a power supply end of the buzzer BUZ1 is electrically connected with the power supply module.

Preferably, the ADC detection module includes an NTC, a resistor R7, a resistor R9, and a capacitor C3, wherein one end of the capacitor C3 is electrically connected to a ground terminal and one end of the NTC, the other end of the capacitor C3 is electrically connected to one end of the resistor R9 and the pin 3 of the main control chip U1, the other end of the resistor R9 is electrically connected to one end of the resistor R7 and the other end of the NTC, and the other end of the resistor R7 is electrically connected to the power supply module.

Further, the ADC detection and buzzer multiplexing circuit further comprises a zero-crossing detection resistor R4, wherein one end of the zero-crossing detection resistor R4 is electrically connected to the power supply module, and the other end of the zero-crossing detection resistor R4 is electrically connected to a pin 16 of the main control chip U1.

Furthermore, the ADC detection and buzzer multiplexing circuit further comprises a digital display module electrically connected with the main control module.

Further, the ADC detection and buzzer multiplexing circuit further comprises a silicon controlled output module which is electrically connected with the power supply module and the main control module respectively.

The utility model has the advantages that: an ADC detection and buzzer multiplexing circuit comprises a power supply module, and a main control module, an ADC detection module and a buzzer module which are electrically connected with the power supply module, wherein the power supply module is electrically connected with the main control module; by sharing one I/O port for the ADC detection analog quantity and the buzzer, the use of the I/O port is reduced while the ADC detection and the buzzer control are finished, and the occupation of chip resources is reduced.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an ADC detection and buzzer multiplexing circuit;

FIG. 2 is a schematic diagram of a power supply module;

FIG. 3 is a schematic diagram of a master control module;

FIG. 4 is a schematic diagram of an ADC detection module;

FIG. 5 is a schematic diagram of a buzzer module;

FIG. 6 is a schematic diagram of a digital display module;

fig. 7 is a schematic diagram of the thyristor output module.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 7, an ADC detects and buzzer multiplex circuit, including power module 10 and with host system 20, ADC detection module 30 and buzzer module 40 that power module 10 electricity is connected, power module 10 is connected with host system 20 electricity, and host system 20 has ADC detection port, and ADC detection module 30 and buzzer module 40 all are connected with the same ADC detection port electricity of host system 20, and ADC detection module 30 can detect the analog quantity to feed back to host system 20 through ADC detection port, host system 20 accessible ADC detection port control buzzer module 40's work.

In the utility model, the ADC detection module 30 is used for detecting the environmental parameters of the analog quantity, the buzzer module 40 is used for buzzer alarm, especially applied to the temperature alarm, leakage alarm, etc. of household appliances, the ADC detection module 30 and the buzzer module 40 are connected to the same I/O port with ADC detection function of the main control chip U1 at the same time, the general I/O function used by the buzzer module 40, the ADC detection module 30 uses the ADC detection function; when the buzzer BUZ1 rings, the main control chip U1 sets an I/O port connected with the buzzer BUZ1 to be in a common I/O port output state, after the buzzer BUZ1 rings, an ADC detection function is set back, and the read-back AD value is processed after being delayed for tens of milliseconds, because the AD value detected immediately after the buzzer BUZ1 rings is inaccurate, the time is delayed for a little time to filter out the inaccurate value; most states of the I/O are in the state of detecting AD, because real-time temperature measurement is needed, the state is changed into the output state of the common I/O port only when the buzzer BUZ1 rings, and because the time for the buzzer BUZ1 to ring is not long generally, the influence on AD detection is not great.

The main control module 20 comprises a main control chip U1 with the model of BF7612BM 16.

The buzzer module 40 comprises a buzzer BUZ1, a resistor R10 and a ceramic chip capacitor C2, one end of the ceramic chip capacitor C2 is electrically connected with a pin 3 of a main control chip U1, the other end of the ceramic chip capacitor C2 is electrically connected with one end of a resistor R10, the other end of the resistor R10 is electrically connected with a control end of the buzzer BUZ1, and a power supply end of the buzzer BUZ1 is electrically connected with the power supply module 10.

The ADC detecting module 30 includes an NTC, a resistor R7, a resistor R9, and a capacitor C3, wherein one end of the capacitor C3 is electrically connected to a ground terminal and one end of the NTC, the other end of the capacitor C3 is electrically connected to one end of the resistor R9 and a pin 3 of the main control chip U1, the other end of the resistor R9 is electrically connected to one end of the resistor R7 and the other end of the NTC, and the other end of the resistor R7 is electrically connected to the power supply module 10.

The ADC detection and buzzer multiplexing circuit further comprises a zero-crossing detection resistor R4, one end of the zero-crossing detection resistor R4 is electrically connected with the power supply module 10, and the other end of the zero-crossing detection resistor R4 is electrically connected with a pin 16 of a main control chip U1.

The ADC detection and buzzer multiplexing circuit further comprises a digital display module 50 electrically connected with the main control module 20.

The ADC detection and buzzer multiplexing circuit further comprises a controllable silicon output module 60 which is electrically connected with the power supply module 10 and the main control module 20 respectively.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides a ADC detects and buzzer multiplex circuit which characterized in that: including power module (10) and with power module (10) electricity main control module (20), ADC detection module (30) and buzzer module (40) of connecting, power module (10) are connected with main control module (20) electricity, and main control module (20) have ADC detection port, and ADC detection module (30) and buzzer module (40) all are connected with the same ADC detection port electricity of main control module (20), and ADC detection module (30) can detect the analog quantity to feed back to main control module (20) through ADC detection port, main control module (20) accessible ADC detection port control buzzer module (40) work.

2. The ADC detection and buzzer multiplexing circuit of claim 1, wherein: the main control module (20) comprises a main control chip U1 with the model of BF7612BM 16.

3. The ADC detection and buzzer multiplexing circuit of claim 2, wherein: the buzzer module (40) comprises a buzzer BUZ1, a resistor R10 and a ceramic chip capacitor C2, one end of the ceramic chip capacitor C2 is electrically connected with a pin 3 of a main control chip U1, the other end of the ceramic chip capacitor C2 is electrically connected with one end of a resistor R10, the other end of the resistor R10 is electrically connected with a control end of the buzzer BUZ1, and a power supply end of the buzzer BUZ1 is electrically connected with the power supply module (10).

4. The ADC detection and buzzer multiplexing circuit of claim 2, wherein: the ADC detection module (30) comprises an NTC, a resistor R7, a resistor R9 and a capacitor C3, one end of the capacitor C3 is electrically connected with a ground terminal and one end of the NTC respectively, the other end of the capacitor C3 is electrically connected with one end of a resistor R9 and a pin 3 of a main control chip U1 respectively, the other end of the resistor R9 is electrically connected with one end of the resistor R7 and the other end of the NTC respectively, and the other end of the resistor R7 is electrically connected with the power supply module (10).

5. The ADC detection and buzzer multiplexing circuit of claim 2, wherein: the power supply module further comprises a zero-crossing detection resistor R4, one end of the zero-crossing detection resistor R4 is electrically connected with the power supply module (10), and the other end of the zero-crossing detection resistor R4 is electrically connected with a pin 16 of the main control chip U1.

6. The ADC detection and buzzer multiplexing circuit of claim 1, wherein: the digital display device also comprises a digital display module (50) electrically connected with the main control module (20).

7. The ADC detection and buzzer multiplexing circuit of claim 1, wherein: the power supply module also comprises a silicon controlled output module (60) which is respectively electrically connected with the power supply module (10) and the main control module (20).