Serial port level conversion circuit
A technology for converting circuits and serial ports, applied in the field of serial communication, can solve the problems of affecting timing, unstable serial communication, and high circuit costs, and achieve the effects of simplifying circuits, improving stability and response efficiency, and reducing production costs.
Pending Publication Date: 2020-07-17
广东澳领科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, in the circuit design, since there are units powered by different voltages, the serial ports are used for data transmission between the units. The existing serial port level conversion circuits are often too complicated, and some electronic components or even dedicated chips need to be added for power supply. Level conversion, such as using some filter components such as transistors and capacitors, but this not only has high circuit cost, but also easily causes phase shift and affects timing, making serial communication unstable and low response efficiency
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the protection scope of the present invention.
[0022] see figure 1 , a circuit diagram of a serial port level conversion circuit provided by an embodiment of the present invention includes: a first serial port module, a second serial port module, a step-down module and a boost module;
[0023] One end of the boost module is connected to the receiving end of the first serial port module, and the other end is connected to the transmitting end of the second serial port module; wherein, the boost module includes a first resi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a serial port level conversion circuit, which comprises a first serial port module, a second serial port module, a voltage reduction module and a voltage boosting module; one end of the boosting module is connected with the receiving end of the first serial port module, and the other end of the boosting module is connected with the transmitting end of the second serial portmodule; the boost module comprises a first resistor, a second resistor, a third resistor, an MOS tube and a triode. One end of the voltage reduction module is connected with the transmitting end of the first serial port module, and the other end of the voltage reduction module is connected with the receiving end of the second serial port module. The voltage reduction module comprises a fourth resistor and a fifth resistor. According to the serial port level conversion circuit disclosed by the invention, the use of filtering elements is reduced, the circuit is simplified, and the stability andthe response efficiency of serial port communication are improved.
Description
technical field [0001] The invention relates to the technical field of serial port communication, in particular to a serial port level conversion circuit. Background technique [0002] At present, in the circuit design, since there are units powered by different voltages, the serial ports are used for data transmission between the units. The existing serial port level conversion circuits are often too complicated, and some electronic components or even dedicated chips need to be added for power supply. Level-to-level conversion, such as using some transistors, capacitors and other filter components, but this not only has high circuit costs, but also easily causes phase shift and affects timing, making serial communication unstable and low response efficiency. Contents of the invention [0003] Aiming at the problems existing in the prior art, the invention provides a serial port level conversion circuit, which improves the stability and response efficiency of the serial po...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F13/40G06F13/42H03K19/0175
CPCG06F13/4072G06F13/4282G06F2213/0002H03K19/017509
Inventor 莫志承梁文威叶靖仪
Owner 广东澳领科技有限公司