Trainable Transceiver Voltage Regulator Circuit for Battery Life
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Solution Overview
Problem
Trainable transceivers used in vehicles face challenges in maintaining reliable operation across varying temperatures and operating conditions without requiring frequent battery maintenance or replacement, and existing solutions often interfere with communication usage.
Innovation Solution
A trainable transceiver unit with a voltage regulator circuit that includes a DC-DC converter, a low leakage switch, and a temperature-sensitive current source, powered by a long-life battery such as lithium-carbon monofluoride, lithium manganese dioxide, or lithium-thionyl chloride cells, which adjusts voltage levels and reduces interference, allowing for self-sufficient operation and extended battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a standard battery is used to power the trainable transceiver, then the device can operate, but the battery requires frequent maintenance and replacement during the vehicle's lifetime
Solution Approach 1:
The patent changes the chemical composition parameters of the battery by selecting specific lithium battery chemistries (lithium-carbon monofluoride, lithium manganese dioxide, or lithium-thionyl chloride cells) that inherently provide extended service life and reduced maintenance requirements compared to standard batteries, directly addressing the contradiction between battery duration and maintenance ease
Solution Approach 2:
The voltage regulator circuit with temperature-sensitive current source automatically adjusts the base drive current to the low leakage switch based on temperature conditions, enabling the power supply system to self-regulate and optimize battery performance across varying temperatures, thereby extending battery life without requiring user intervention
2Adaptability or versatility
If the battery voltage varies with temperature, then the battery can operate in different temperature conditions, but the voltage instability interferes with transceiver communication
Solution Approach 1:
The voltage regulator circuit acts as an intermediary between the temperature-variable battery and the transceiver circuitry. It converts the unstable battery voltage into a stable regulated voltage, isolating the transceiver from temperature-induced voltage fluctuations and maintaining communication reliability across different temperature conditions
Solution Approach 2:
The temperature-sensitive current source dynamically adjusts electrical parameters (base drive current) based on temperature changes, compensating for battery voltage variations and ensuring stable operation of the low leakage switch and DC-DC converter across the full operating temperature range
3Reliability
If a voltage regulator circuit is added to stabilize battery voltage, then communication reliability improves, but device complexity increases
Solution Approach 1:
The voltage regulator circuit uses a temperature-sensitive current source that automatically senses temperature changes and self-adjusts the base drive current without requiring external control or complex regulation logic, achieving voltage stabilization through self-regulating behavior that minimizes circuit complexity
Solution Approach 2:
The temperature-sensitive current source implements a feedback mechanism where temperature sensing directly controls the base drive current to the low leakage switch, creating a closed-loop system that automatically compensates for voltage variations while maintaining relatively simple circuit architecture
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 solution provides a stable voltage supply, extends battery life, and reduces the need for frequent replacements, ensuring reliable operation across a range of temperatures and maintaining communication functionality without interfering with vehicle systems.
Implementation Method 1
The voltage regulator circuit includes a DC-DC converter configured to step up the battery voltage level
Implementation Method 2
a temperature-sensitive current source configured to control the low leakage switch
Implementation Method 3
a low leakage switch configured to couple the battery and the DC-DC converter
Implementation Method 4
The at least one resistor is configured to filter spikes that may arise from the operation of the voltage regulator circuit
Data Source
AI summary
One embodiment of the invention relates to a trainable transceiver. The trainable transceiver includes a transceiver circuit, a user input device, a battery, and a voltage regulator circuit. The transceiver circuit is configured to reproduce and transmit control signals for operating a plurality of remote electronic devices. The user input device is configured to accept user input. The voltage regulator circuit includes a DC-DC converter configured to step up the battery voltage level, a low leakage switch configured to couple the battery and the DC-DC converter, and a temperature-sensitive current source configured to control the low leakage switch. The battery is configured to power the transceiver circuit, the user input device, and the voltage regulator circuit.