Low voltage drive circuit with variable oscillating characteristics and methods for use therewith
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Solution Overview
Problem
Current data communication systems face challenges in efficiently transmitting digital data over low voltage signals with high noise immunity and low power consumption, particularly in environments where data errors are prevalent, such as wireless communications.
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 and high noise immunity data transmission, and vice versa, using multiple frequencies to increase data rates without significant power increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital data is transmitted using conventional high voltage signals, then data transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent changes the voltage parameter from conventional high voltage levels to low voltage levels (e.g., 1.8V to 3.6V), and introduces oscillating frequency as a new parameter to encode data. This allows data transmission to achieve reliability through frequency modulation rather than voltage amplitude, significantly reducing power consumption while maintaining transmission integrity.
Solution Approach 2:
The invention introduces dynamic oscillating signals with varying frequencies to represent digital data. Instead of static high voltage levels, the system uses dynamic low-voltage oscillations where data is encoded in the frequency domain. This dynamic approach enables reliable data transmission at low voltage by exploiting frequency variations rather than voltage amplitude variations.
2Productivity
If multiple frequencies are used to increase data rates, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal low voltage drive circuit that can generate multiple oscillating frequencies using the same core circuitry. The circuit employs configurable oscillators and multiplexers that allow a single circuit structure to produce different frequency signals based on control inputs, enabling high data rates without proportionally increasing circuit complexity. The same circuit block serves multiple frequency generation functions.
3Use of energy by moving object
If low voltage signals are used for data transmission, then power consumption is reduced, but noise immunity deteriorates
Solution Approach 1:
The patent replaces the conventional voltage-amplitude-based signaling mechanism with a frequency-based signaling mechanism. Instead of relying on voltage amplitude variations that are susceptible to noise, the system encodes data in the frequency domain using low-voltage oscillating signals. This substitution of the signaling mechanism fundamentally improves noise immunity while maintaining low power consumption, as frequency detection is inherently more robust against voltage noise and interference.
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.