Battery Switch-On Relay Circuit for Power-Off Wake and Communication
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Solution Overview
Problem
Existing battery management technologies require complex hardware circuits and suffer from poor reliability in control signal transmission, making it difficult to achieve efficient power-on and communication after a circuit is powered off.
Innovation Solution
A battery switch on circuit comprising a communication control module, a relay, a communication control circuit, and a switch, where the relay's coil is powered on by a battery supply to control connections between common and first contacts, and powered down to control connections between common and second contacts, enabling normal power-on and communication by using the communication control module when the entire circuit is powered off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery charging circuit and power-on switch circuit are used to power on the entire circuit, then the circuit can be powered on, but the hardware circuit becomes complex and control signal transmission reliability deteriorates
Solution Approach 1:
The patent combines the battery management circuit and communication circuit into an integrated design where the communication control module serves dual purposes: managing battery operations and enabling communication. This merging eliminates the need for separate power-on switch circuits and reduces hardware complexity while maintaining control signal reliability through the integrated architecture.
Solution Approach 2:
The communication control module is designed to perform multiple functions: it manages battery charging/discharging operations, handles communication protocols, and serves as the power-on trigger mechanism. This multi-functionality replaces traditional dedicated power-on circuits, simplifying the overall hardware design while improving signal transmission reliability through a unified control pathway.
2Use of energy by moving object
If the entire circuit is powered off to achieve low power consumption, then power consumption is reduced, but the ability to power on and communicate after power-off is compromised
Solution Approach 1:
The system enters a preliminary low-power state where the main circuit is powered off but the communication control module retains minimal operational capability. This preliminary action allows the system to quickly transition from low-power mode to full operation when a power-on signal is received, maintaining ease of operation while achieving low power consumption during idle periods.
Solution Approach 2:
The communication control module is designed to self-activate upon receiving a power-on signal without requiring complex external control circuits. It automatically restores full circuit operation and re-establishes communication capabilities, enabling the system to serve itself during power-on transitions and maintaining operational ease while in low-power state.
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 solution simplifies the hardware circuit, improves control signal reliability, and enables successful power-on and communication after the entire circuit is powered off, addressing the issues of complexity and poor signal transmission in prior art.
Implementation Method 1
a relay, the relay comprising a power input terminal, at least one common contact, at least one first contact, at least one second contact and a coil for controlling connection between the at least one common contact and the at least one first contact and a connection between the at least one common contact and the least one second contact based on the voltage at the power input terminal
Data Source
Figure 1~2
AI summary
Embodiments of the present invention disclose a battery switch on circuit and a lithium battery. The circuit includes a communication control module, a relay, a communication control circuit, a switch, and a communication connection terminal. A communication signal terminal of the communication control module is connected to a first contact of the relay, a common contact of the relay is connected to the communication connection terminal. A coil of the relay is powered on to control the common contact and the first contact to be gated and is powered down to control the common contact and a second contact of the relay to be gated. The communication connection terminal is configured to connect to an upper computer. The switch includes a first terminal, a second terminal, and a control terminal. A signal from the control terminal of the switch is capable of controlling conduction or disconnection between the first terminal and the second terminal. The first terminal of the switch is connected to a power supply, the second terminal of the switch is connected to a power input terminal, and after the power input terminal is powered on, the coil of the relay is powered on. A signal input terminal is connected to the second contact of the relay, and a control signal output terminal is connected to the control terminal of the switch. Whereby, an effect of normal power-on and communication after the entire circuit is powered off is realized.