Pressure sensor module, pressure detection device and method
A technology of a pressure sensor and a detection device, which is applied in the field of pressure detection devices and pressure sensor modules, can solve the problems that pressure-sensing buttons cannot correctly identify positive and lateral pressing signals, and misidentify, so as to avoid misidentification and improve reliability effect
Pending Publication Date: 2020-05-08
CHIPSEA TECH SHENZHEN CO LTD
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Problems solved by technology
[0004] Based on this, it is necessary to provide a pressure sensor module, a pressure detection device, and a method for the existing pressure-sensitive buttons that cannot correctly identify the forward and side pressing signals and have misidentification problems.
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[0053] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.
[0054] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" an...
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The invention provides a pressure sensor module, a pressure detection device and a method. The pressure sensor module comprises a panel, a first full-bridge circuit and a second full-bridge circuit. The first full-bridge circuit is arranged on the panel. And at least one half bridge of the first full-bridge circuit is a force sensitive resistor. The first full-bridge circuit includes a first half-bridge and a second half-bridge. The first half bridge is located on a first plane. The second half-bridge is located on a second plane parallel to the first plane. And the second full-bridge circuitis arranged on the panel. The second full-bridge circuit comprises a first bridge arm and a second bridge arm which are located on a first plane, and a third bridge arm and a fourth bridge arm which are located on a second plane. The first bridge arm and the third bridge arm are electrically connected to form a third half bridge. And the second bridge arm and the fourth bridge arm are electricallyconnected to form a fourth half bridge. And the first bridge arm and the second bridge arm, and / or the third bridge arm and the fourth bridge arm are force sensitive resistors. The output end of thefirst full-bridge circuit and the output end of the second full-bridge circuit are used for being electrically connected with a pressure signal detection circuit.
Description
technical field [0001] The present application relates to the technical field of pressure-sensitive keys, and in particular to a pressure sensor module, a pressure detection device and a method. Background technique [0002] The pressure-sensing button is a new type of button based on pressure-sensing technology. It uses a pressure-sensing structure instead of a mechanical button structure, and can convert the force applied on the pressure-sensing panel into a control signal, thereby realizing the corresponding control function. Compared with mechanical buttons, pressure-sensitive buttons have the advantages of high sensitivity, long service life, and small footprint. They can replace the original mechanical buttons in many fields and provide richer human-computer interaction methods for many input devices. [0003] Currently, pressure-sensitive buttons are widely used in electronic devices. The realization principle of the pressure-sensitive button on the electronic device...
Claims
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IPC IPC(8): G01L1/22H03K17/96G06F3/041
CPCG01L1/2262G01L1/2287H03K17/9645G06F3/0414
Inventor 张志义
Owner CHIPSEA TECH SHENZHEN CO LTD