Induced Signal Feedback Circuit for Insulated Metal Parts
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Solution Overview
Problem
Conventional grounding methods do not effectively remove induced voltage from metal parts in inductive loads, leading to unnecessary current flow and potential electric shocks, as they only address static electricity and do not completely eliminate induced signals.
Innovation Solution
An induced signal removing circuit with an input terminal connected to the metal part and two output terminals connected to the inductive load, utilizing a signal flow controller with diodes to direct induced signals in one direction, ensuring they are fed back into the inductive load and not allowed to cause counter electromotive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grounding method is used to remove induced voltage, then static electricity voltage is removed, but induced voltage signals are not completely eliminated and are only absorbed by ripple filter or discharged through housing
Solution Approach 1:
The patent applies feedback by detecting the induced voltage signal on the metal part and feeding back a compensating signal through the signal flow controller to cancel out the induced voltage. This active feedback mechanism completely eliminates induced voltage rather than merely dissipating it, resolving the contradiction between removal effectiveness and energy loss.
Solution Approach 2:
The signal flow controller acts as an intermediary device that manages the flow of induced voltage signals. It controls the direction and path of induced signals, allowing them to be constructively utilized or safely directed, thereby achieving complete removal while managing energy dissipation efficiently.
2Reliability
If grounding method is used, then induced voltage is absorbed by ripple filter or discharged through housing making it undetectable, but induced current still flows causing potential electric shock
Solution Approach 1:
The feedback mechanism continuously monitors the metal part's voltage and actively compensates to maintain it at ground potential. This prevents induced current flow by eliminating the voltage differential that drives current, while keeping the system detectable and controllable.
Solution Approach 2:
The system uses the induced voltage signal itself to generate the compensating signal needed to cancel it out. The metal part's induced voltage is fed back through the signal flow controller to create an equal and opposite signal, achieving self-cancellation and preventing harmful current flow.
3Object-affected harmful factors
If induced voltage is not removed, then potential difference generates induced current causing electric shock risk, but removing induced voltage completely requires immediate action after generation
Solution Approach 1:
The signal flow controller continuously operates to detect and cancel induced voltage signals as they are generated. This continuous action ensures immediate removal of induced voltage without time delay, preventing electric shock risk while maintaining constant protection throughout operation.
Solution Approach 2:
The real-time feedback mechanism detects induced voltage immediately upon generation and instantly applies compensating signals. This continuous feedback loop ensures no time lag between induced voltage generation and its removal, eliminating electric shock risk without time loss.
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
The circuit efficiently removes induced signals from metal parts, preventing electric shocks and ensuring smooth operation of electrical circuits by effectively managing induced voltage, thereby preventing counter electromotive forces and maintaining intended operations.
Implementation Method 1
two output terminals connected to an input side of the inductive load, the output terminal receiving the induced signals and outputting the induced signals, the input receiving electrical signals; and a signal flow controller between the input terminal and each output terminal, the controller causing the induced signals to flow in only one direction from the input terminal to each output terminal
Implementation Method 2
signals input to the inductive load generate voltage by electromagnetic induction even across an adjacent metal part insulated from the inductive load
Data Source
AI summary
[Object] To provide an induced signal removing circuit that feeds back induced voltage regarded as electrical signals into the input side of an inductive load to remove the induced voltage from the metal part, the induced voltage appearing even across an insulated metal part in response to signals input to the inductive load.[Solution to Problem] An induced signal removing circuit for removing induced signals generated in a metal part in response to electrical signals input to an inductive load, including: an input terminal connected to the metal part insulated from the inductive load, the input terminal receiving the induced signals; two output terminals connected to an input side of the inductive load, the input side receiving the electrical signals, the output terminals outputting the induced signals received from the input terminal; and a signal flow controller between the input terminal and each output terminal, the controller causing the induced signals to flow in only one direction from the input terminal to either output terminal.