Oscillator-Clamper Circuit for Low-Voltage Signal Boosting
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Solution Overview
Problem
Existing DC-DC boost converters are complex and expensive, and conventional amplifiers require high DC biasing voltages and additional components to amplify low voltage signals for LED operation and capacitor charging, while also failing to efficiently handle low frequency AC signals.
Innovation Solution
A circuit using transistors, Schottky diodes, capacitors, and inductors forms an oscillator and clamper circuit to boost low voltage signals to higher levels, creating a new GND terminal and allowing multiple cascaded units to achieve higher output voltages with a common input and output terminal configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing DC-DC boost converters are used to increase low voltage levels, then voltage boosting is achieved, but device complexity and cost increase
Solution Approach 1:
The patent changes the operating parameters by using a transistor oscillator operating at low voltages (1V-1.5V) instead of conventional high-voltage oscillators, and employs Schottky diodes with low forward voltage drops to achieve voltage multiplication through capacitive coupling without requiring complex high-voltage components
Solution Approach 2:
The voltage boosting function is segmented into multiple stages using cascaded oscillator-clamper units, where each stage multiplies the voltage by a factor of 2-3, allowing progressive voltage increase from 1.5V to 9V or higher through simple repetition of modular stages rather than a single complex converter
2Power
If conventional amplifiers are used to amplify low voltage signals for LED operation, then LED drive capability is achieved, but high DC biasing voltage and additional components are required
Solution Approach 1:
The transistor oscillator generates its own oscillating signal and voltage multiplication internally, eliminating the need for external high-voltage biasing circuits. The circuit self-regulates by using the LED's forward voltage drop as part of the oscillator's operating point, with the clamper circuit automatically generating the necessary voltage swings
Solution Approach 2:
The transistor serves multiple functions simultaneously: it acts as the oscillator active device, provides voltage amplification, and works with the clamper circuit to generate both the oscillating signal and the multiplied voltage, replacing what would traditionally require separate amplifier, oscillator, and biasing circuit components
3Productivity
If conventional amplifiers are used to handle low frequency AC signals, then signal amplification is achieved, but additional biasing components and high voltage requirements are needed
Solution Approach 1:
The circuit uses periodic oscillation at low frequencies (audio range or lower) where the transistor switches between saturation and cutoff regions, with the clamper circuit capturing voltage during each half-cycle and releasing it to achieve amplification of low-frequency AC signals without requiring continuous high-voltage biasing
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 provides a simpler, more economical method to boost low voltage signals to levels suitable for LED operation and capacitor charging, while allowing flexibility in optimizing output voltage and current, and can handle low frequency AC signals with minimal additional components.
Implementation Method 1
Said transistor is used as an oscillator. Said inductors, capacitors and diodes are connected to form a clamper circuit, components of which store and release electric energy in alternating cycles of said multi-vibrator.
Implementation Method 2
Said inductors, capacitors and diodes are connected to form a clamper circuit, components of which store and release electric energy in alternating cycles of said multi-vibrator.
Implementation Method 3
Said inductors, capacitors and diodes are connected to form a clamper circuit, components of which store and release electric energy in alternating cycles of said multi-vibrator.
Implementation Method 4
A Light-Emitting-Diode (LED) is a semi-conductor device that has a certain forward voltage drop that needs to be overcome by an electrical source before it can glow.
Data Source
AI summary
The present invention is an electronic circuit used to increase voltage levels of electrical signals from sources having low voltage levels for any required application in an electrical system. While the focus is to increase voltage levels, current levels can also be optimized per application requirements. It is built by electronically cascading a clamper circuit or a part of clamper circuit to an oscillator circuit. The oscillator circuit generates an AC signal. The basic functionality of a clamper circuit is to raise DC level of an AC signal. With an oscillator circuit feeding an AC signal to the clamper circuit, multiple applications can be achieved economically. Said invention can be used for driving LEDs at low voltage levels, charge a capacitors to higher voltage levels than a voltage applied to it, low frequency signal amplifiers, low frequency signal generators, AM/FM modulators, etc.