Transformer Pulse Transmission Circuit for Latch Control
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Solution Overview
Problem
Existing signal transmission apparatuses require multiple signal path systems to set and reset flip-flops, which can be complex and inefficient, especially when dealing with changes in binary levels and frequencies of input signals.
Innovation Solution
A signal transmission apparatus with a transmission circuit that outputs pulse signals with specific frequencies based on input signal edges and levels, using transformers to induce signals in a reception circuit, allowing for stable control of a latch circuit without increasing the number of signal path systems, by modulating frequencies and amplitudes in response to input signal changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple signal path systems are used to set and reset flip-flops, then the control capability is improved, but the circuit complexity increases
Solution Approach 1:
The patent merges the set and reset signal paths into a single signal path system. The transmission circuit outputs a single pulse signal that is transmitted through one transformer to the reception circuit, which then generates both set and reset signals internally based on the received pulse signal and input signal levels, eliminating the need for multiple separate signal paths while maintaining full control capability
Solution Approach 2:
The single pulse signal transmitted through the transformer serves multiple functions: it carries the clock signal for flip-flop operation, enables the reception circuit to generate both set and reset signals, and works in conjunction with input signal levels to control the output. This multi-functional approach replaces the need for separate dedicated signal paths for set and reset operations
2Productivity
If frequency modulation is applied to encode control signals, then the signal transmission efficiency is improved, but the detection and measurement difficulty increases
Solution Approach 1:
The reception circuit incorporates frequency detection functionality that monitors the pulse signal frequency and uses this information to control the output signal levels. The circuit automatically adjusts its response based on the detected frequency, providing a feedback mechanism that simplifies the detection process and ensures reliable operation without requiring complex external measurement systems
Solution Approach 2:
The patent uses frequency as a control parameter where different pulse frequencies encode different control states (e.g., first frequency for high level, second frequency for low level). The reception circuit is designed to detect these frequency changes and translate them into corresponding output signal levels, making the frequency modulation approach straightforward to implement and detect
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables robust and efficient control of a target circuit with reduced circuit complexity, allowing for stable output signals that can drive switching elements like MOSFETs, improving robustness and control without increasing the circuit configuration.
Implementation Method 1
a first level of a first output signal is changed to a second level according to a first induced signal via a transformer, the second level of the first output signal is changed to the first level according to a second induced signal via the transformer
Data Source
AI summary
In a transmission circuit, a first pulse signal with a first frequency and a second pulse signal with a second frequency are output according to a rising edge and a falling edge of a first input signal, respectively. When a second input signal indicates an active level, the second pulse signal is output according to the falling edge of the first input signal and the second frequency is changed to a third frequency. In a reception circuit, a first level of a first output signal is changed to a second level according to a first induced signal via a transformer, the second level of the first output signal is changed to the first level according to a second induced signal via the transformer, and a second output signal is changed to an active level when a frequency of the second induced signal has changed to the third frequency.