A kind of rs-232 transceiver based on miniature transformer
A RS-232, micro-transformer technology, applied in the direction of instruments, adjusting electrical variables, output power conversion devices, etc., can solve the problem that the single-chip integration of charge pumps and RS-232 transceivers cannot be realized, and the size of RS-232 transceiver chips cannot be realized. Large, the charge pump has no voltage regulation structure and other problems, to achieve the effect of simplifying circuit design, improving performance, and reducing volume
Active Publication Date: 2018-07-03
北京中科格励微科技有限公司
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, most RS-232 transceiver chips on the market use a single-supply power supply scheme with an external charge pump, which cannot realize the single-chip integration of the charge pump and RS-232 transceiver, resulting in a relatively large size of the RS-232 transceiver chip. Big
In addition, because the charge pump does not have a voltage stabilizing structure, the positive and negative voltage multipliers fluctuate, which affects the reliability of the circuit
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
[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0017] The invention discloses an RS-232 transceiver based on a miniature transformer, which includes an isolated power supply module with a miniature transformer, an RS-232 communication module and an external interface; the isolated power supply module is a dual-voltage output to support the RS-232 communication module Positive and negative output swing; isolated power supply module and RS-232 communication module adopt chip integrated design.
[0018] In the above solution, the miniature transformer in the isolated power module includes: a primary metal coil, a secondary metal coil, and an isolation layer between the primary and secondary metal coils; the primary metal coil and the secondary metal coil are hollow structures and adopt a common The sha...
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 present invention discloses a micro-transformer based RS-232 transceiver. The RS-232 transceiver comprises an isolated power supply module with a micro-transformer, an RS-232 communications module and an external interface. The isolated power supply module has two output voltages. The isolated power supply module and the RS-232 communications module are designed in a chip integration manner. The RS-232 transceiver provided by the present invention adopts a chip-level micro-transformer in place of an existing charge pump, so that a chip area is greatly reduced. According to the micro-transformer based RS-232 transceiver provided by the present invention, an isolated power supply module and RS-232 communications module hybrid integration scheme is adopted; a charge pump in the RS-232 transceiver is removed; and a volume of a system and the number of components are reduced as much as possible, so that circuit design is simplified, and the cost is reduced. In the RS-232 transceiver provided by the present invention, the isolated power supply module formed by the micro-transformer provides two paths of stable output, so that circuit reliability is greatly improved.
Description
Technical field [0001] The invention relates to a serial communication device, in particular to an RS-232 transceiver based on a miniature transformer. Background technique [0002] With the development of automation technology, more and more production equipment is equipped with computers for data processing. Especially in the field of industrial automation, a large number of devices are connected by serial communication. The RS-232 bus standard is one of the physical layer bus design standards that have been widely used earlier. The RS-232 technology has been developing steadily along with changes in application requirements, and the functions of the RS-232 transceiver have been continuously improved. A typical RS-232 signal swings between positive and negative levels, so dual power supplies are required, while most systems only provide one power supply, which requires an external charge pump to double the single power supply. At present, most of the RS-232 transceiver chips ...
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 Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40H02M3/335
CPCG06F13/4072G06F2213/0002H02M3/33592
Inventor 张峰屈操李金良吴宗国
Owner 北京中科格励微科技有限公司