Low-Voltage Drive Circuit Using Oscillating Bus Loading Signals
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Solution Overview
Problem
Current data communication systems face challenges in efficiently transmitting digital data over low voltage signals with minimal power consumption and high noise immunity, particularly in environments where data errors are prevalent.
Innovation Solution
The implementation of Low Voltage Drive Circuits (LVDCs) that convert digital data into analog signals with oscillating components of low magnitude, allowing for low power, high data rate communications with improved noise immunity, and enable full or half duplex communication using multiple frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital data is transmitted using conventional voltage levels, then data communication is reliable, but power consumption is high and noise immunity is reduced
Solution Approach 1:
The patent changes the voltage level parameter from conventional high voltage to low voltage operation. The LVDC transmits digital data using low voltage analog signals with oscillating components, fundamentally altering the electrical parameter to achieve both low power consumption and acceptable noise immunity through the specific oscillating signal characteristics
Solution Approach 2:
The patent applies the concept of vibration by using oscillating signal components in the low voltage analog transmission. The oscillating nature of the signal provides noise immunity through frequency-based differentiation, allowing reliable data detection despite low voltage levels and enabling efficient operation at low power consumption
2Use of energy by moving object
If low voltage signals are used for data transmission, then power consumption is reduced, but data transmission reliability deteriorates due to increased susceptibility to noise
Solution Approach 1:
The patent uses oscillating signal components embedded in the low voltage analog transmission. These oscillations create a distinctive signal pattern that can be differentiated from noise through frequency-based detection, maintaining reliability despite the low voltage operation and resulting in both reduced power consumption and acceptable noise immunity
Solution Approach 2:
The patent transforms the transmission approach by changing from digital voltage levels to low voltage analog signals with specific oscillating characteristics. This parameter change enables the system to operate at low power while maintaining data integrity through the unique temporal and frequency properties of the oscillating signal
3Productivity
If high data rates are achieved using conventional methods, then productivity increases, but power consumption and noise susceptibility increase
Solution Approach 1:
The patent changes the fundamental transmission parameter from digital voltage switching to low voltage analog signaling with oscillating components. This enables high data rates to be achieved through frequency and temporal encoding in the analog domain, consuming less power and exhibiting better noise characteristics than conventional high-speed digital transmission methods
Data Source
AI summary
A low voltage drive circuit includes a transmit digital to analog circuit that converts transmit digital data into analog outbound data by: generating a DC component; generating a first oscillation at a first frequency; generating a second oscillation at the first frequency; and outputting the first oscillation or the second oscillation on a bit-by-bit basis in accordance with the transmit digital data to produce an oscillating component, wherein the DC component is combined with the oscillating component to produce the analog outbound data, and wherein the oscillating component and the DC component are combined to produce the analog outbound data. A drive sense circuit drives an analog transmit signal onto a bus, wherein the analog outbound data is represented within the analog transmit signal as variances in loading of the bus at the first frequency and wherein analog inbound data is represented within an analog receive signal as variances in loading of the bus at a second frequency.