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Pressure sensor, switching circuit of pressure sensor, clock control method and clock control device

A pressure sensor and switching circuit technology, applied in the field of circuits, can solve the problem of high power consumption of pressure sensors

Pending Publication Date: 2020-04-07
GOERTEK MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a pressure sensor and its switch circuit, clock control method and clock control device, aiming to solve the technical problem of high power consumption of the pressure sensor

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  • Pressure sensor, switching circuit of pressure sensor, clock control method and clock control device
  • Pressure sensor, switching circuit of pressure sensor, clock control method and clock control device
  • Pressure sensor, switching circuit of pressure sensor, clock control method and clock control device

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the ...

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Abstract

The invention discloses a switching circuit of a pressure sensor, which comprises an initial signal detection module used for detecting an initial signal sent by an external chip through a bus; an endsignal detection module which is used for detecting an end signal sent by an external chip through a bus; a clock switch signal generation module which is used for generating a clock starting signalwhen the starting signal detection module detects a starting signal so as to control the pressure sensor to start a clock pulse; and when the end signal detection module detects an end signal, a clockclosing signal is generated to control the pressure sensor to close the clock pulse. The invention also discloses the pressure sensor and a clock control method and a clock control device thereof. The power consumption of the pressure sensor is saved.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a pressure sensor and its switch circuit, a clock control method and a clock control device. Background technique [0002] A pressure transducer (Pressure Transducer) is a device or device that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. The chip of the pressure sensor can communicate with an external chip through a bus connection. For the logic circuit inside the chip to operate, the power supply and the clock pulse must work simultaneously to enable data transmission. When the current pressure sensor is powered on, regardless of whether there is a need for data transmission, the clock pulse is always in the working state, which consumes a lot of power, and the power consumption of the pressure sensor is high. [0003] The above content is only used to assist in understanding the technical solution o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/22
CPCH03K17/22
Inventor 陈思颖
Owner GOERTEK MICROELECTRONICS CO LTD