Data transmission and power supply device and data transmission and power supply method thereof

A technology of data transmission and power supply device, applied in the direction of electrical digital data processing, instruments, etc., can solve problems such as unrealizable cost, achieve the effects of simplifying structure, reducing cost, and expanding the applicable field and scope

Active Publication Date: 2012-09-26
SILICON STAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a data transmission and power supply device and its data transmission and power supply method, so as to solve the technical problem that the prior art cannot achieve low cost, simple structure, and use the same DC power supply line for power supply and data synchronous transmission

Method used

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  • Data transmission and power supply device and data transmission and power supply method thereof
  • Data transmission and power supply device and data transmission and power supply method thereof
  • Data transmission and power supply device and data transmission and power supply method thereof

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Embodiment Construction

[0040] In order to make the above-mentioned features and advantages of the present invention more comprehensible, exemplary embodiments are given below together with accompanying drawings and described in detail as follows.

[0041] An embodiment of the present invention provides a data transmission and power supply device, which includes: a host end, including a first general input and output port, a power supply voltage output unit; a slave end, including a second general input and output port, a clock generation unit and A charging unit; the host terminal and the slave terminal are connected through a connection line.

[0042] See figure 1 , which is a circuit diagram of a single-wire bidirectional data transmission and power supply device provided by an embodiment of the present invention.

[0043] The left part is the slave (Slave) 200 , the right is the master (Master) 100 , and the slave 200 is connected to the master 100 through a connection line (VLINE) 300 . The ho...

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Abstract

The invention discloses a data transmission and power supply device and a data transmission and power supply method thereof. The device comprises a host end and a slave end, the host end comprises a first general input and output port and a power voltage output unit connected with the first general input and output port; the slave end comprises a second general input and output port, a clock generating unit and a charging unit, and the clock generating unit and the charging unit are connected with the second general input and output port; and the host end and the slave end are connected via a connecting line. The data transmission and power supply method comprises that the host end is connected to the slave end through the connecting line; the host end transmits low-frequency clock signals to the connecting line, the slave end acquires electric energy from the clock signals, and reshaping, frequency doubling and synchronizing procedures are performed to the clock signals; and the host end and the slave end are in data information transmission by the synchronized clock signals, and the host end supplies power for the slave end. To sum up, the data transmission and power supply device and the data transmission and power supply method thereof realize power supply and single-line bidirectional synchronous data transmission on the premise that an independent power source is unavailable.

Description

technical field [0001] The invention relates to the field of data interface technology, and in particular to a data transmission and power supply device and a data transmission and power supply method thereof. Background technique [0002] In the same DC power supply line, it is necessary to transmit both power and data signals. The traditional method is to use high-frequency carrier wave or DC pulse modulation. The data transmission and power transmission of these two schemes are of the same polarity. The accuracy of data transmission, the cost of transmission devices using high-frequency carrier is too high, and the device using pulse modulation requires a stable DC power supply. When the load is heavy, the cost of high-power regulated power supply will be very high. [0003] In the prior art, for example: Serial Peripheral Interface SPI (serial peripheral interface) bus technology is a synchronous serial interface introduced by Motorola, and most MCUs (microcontrollers) p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 陈锋奚剑雄
Owner SILICON STAR TECH
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