Doorbell Circuit Diode Emulator Power Harvesting
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Solution Overview
Problem
Current doorbell circuits, especially those with electronic chimes, often fail to complete musical passages or songs due to insufficient power when the doorbell button is pressed for a short duration, requiring users to install a diode in parallel, which can be improperly configured, and they struggle to dynamically switch between battery and line power to extend battery life.
Innovation Solution
A doorbell circuit architecture that includes a diode emulator circuit and current sensing circuit to simulate a diode in either direction, allowing electronic chimes to play to completion without a physical diode and dynamically switch between battery and line power based on load to maximize power harvesting and prevent spurious ringing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical diode is installed in parallel with the doorbell button, then electronic chimes can complete musical passages, but installation complexity increases and improper configuration may occur
Solution Approach 1:
The doorbell circuit automatically detects whether a physical diode is present and configures itself accordingly. The control component monitors the circuit configuration and autonomously adjusts power harvesting parameters, eliminating the need for manual diode installation and configuration by the user.
Solution Approach 2:
The patent replaces the mechanical/physical diode component with an electronic control system that uses electrical signals and control circuitry to achieve the same functional effect of completing musical passages while providing automatic configuration capabilities.
2Duration of action of stationary object
If power is harvested from line power, then battery life is extended, but spurious ringing may occur
Solution Approach 1:
The control component continuously monitors circuit conditions and power harvesting levels, using feedback signals to detect when spurious ringing is about to occur. Based on this feedback, the system dynamically adjusts or reduces power harvesting to prevent spurious ringing while maximizing battery life extension during normal operation.
Solution Approach 2:
The power harvesting level is made dynamic rather than fixed. The control component continuously adjusts the power harvesting parameters based on real-time circuit conditions, allowing the system to optimize battery life when conditions permit and prevent spurious ringing when conditions require it.
3Use of energy by moving object
If the doorbell button is pressed for a short duration, then power consumption is reduced, but electronic chimes cannot complete musical passages
Solution Approach 1:
The system performs preliminary detection of the physical diode configuration before the doorbell button is pressed. Based on this preliminary information, the control component pre-configures power harvesting parameters to ensure that even short-duration button presses can complete musical passages by harvesting sufficient power in advance.
4Ease of operation
If automatic power harvesting is implemented, then user configuration is simplified, but spurious ringing and volume reduction may occur
Solution Approach 1:
The control component uses feedback from circuit monitoring to detect when spurious ringing or volume reduction is occurring. This feedback enables the system to automatically adjust power harvesting levels to prevent these issues while maintaining the simplicity of automatic operation for the user.
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
Enables electronic chimes to play musical passages to completion without user configuration, extends battery life by optimizing power use, and simplifies installation by automatically determining power harvesting without spurious ringing or volume reduction of electro-mechanical chimes.
Implementation Method 1
A doorbell circuit architecture includes a diode emulator circuit and current sensing circuit to simulate a diode in either direction
Implementation Method 2
A doorbell circuit architecture includes a diode emulator circuit and current sensing circuit to simulate a diode in either direction
Implementation Method 3
dynamically switch between battery and line power based on load to maximize power harvesting
Data Source
AI summary
Devices and techniques are generally described for a doorbell camera circuit architecture. In some examples, at least one processor of a doorbell device may generate a first control signal. The at least one processor may send the first control signal to a power-switching control circuit of the doorbell device. The power-switching control circuit may receive a first input electrical signal. The power-switching control circuit may store at least a portion of energy associated with the first input electrical signal in a plurality of capacitors of the power-switching control circuit. The power-switching control circuit may supply power from the plurality of capacitors to a camera of the doorbell device during a first state of the control signal. In various examples, the power-switching control circuit may supply power from the battery to the camera of the doorbell device during a second state of the control signal.