AC Input DC Output Power Supply Integrating Clock Signal Generation
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Solution Overview
Problem
Existing AC input/DC output power supplies and clock generators are typically provided as separate components, making size reduction and cost reduction difficult.
Innovation Solution
An AC input/DC output power supply that includes a voltage conversion means to generate secondary AC voltages, a DC voltage generation means to produce a DC voltage, a waveform shaping means to output a square wave voltage signal, and a frequency adjustment means to generate a high-precision clock signal from a single AC power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AC input/DC output power supply and clock generator are provided as separate components, then each component can be optimized independently, but device size and cost increase
Solution Approach 1:
The patent combines the power supply unit and clock generator into a single integrated device. The power supply includes a rectifier bridge, smoothing capacitor, and voltage regulator, while the clock generator uses the same AC input to drive a frequency divider circuit. This merging eliminates the need for separate power adapters and clock modules, reducing overall device size and cost while maintaining independent optimization of each functional block within the integrated architecture.
Solution Approach 2:
The AC input signal serves multiple functions simultaneously: it powers the rectifier bridge for DC generation, drives the frequency divider for clock signal generation, and provides synchronization reference. This multi-functionality allows a single component to perform both power supply and clock generation tasks, resolving the contradiction between component specialization and size reduction.
2Reliability
If AC input/DC output power supply and clock generator are provided as separate components, then each component can be optimized independently, but manufacturing cost increases
Solution Approach 1:
By integrating the power supply and clock generator into one unit, the patent reduces the total component count, assembly steps, and testing procedures. The shared AC input stage and common housing further simplify manufacturing processes, lowering production costs while maintaining the ability to optimize each functional block's performance.
Solution Approach 2:
The unified design allows a single manufacturing process to produce both power supply and clock generation functions, eliminating the need for separate production lines and assembly operations. This multi-functional integration directly reduces manufacturing complexity and cost.
3Device complexity
If quartz resonator or ceramic resonator is used for clock signal generation, then the power supply can be simple, but frequency accuracy deteriorates
Solution Approach 1:
The system uses the AC power line frequency (50Hz or 60Hz) as a free, highly accurate reference source. The frequency divider circuit divides this stable frequency to generate the required clock frequencies with high precision. This self-service approach eliminates the need for expensive quartz or ceramic resonators while maintaining simple power supply requirements.
Solution Approach 2:
The patent changes the reference frequency source from traditional resonators (kHz range) to AC power line frequency (50/60Hz). By using frequency division rather than direct oscillation, the system achieves high frequency accuracy through mathematical division of a stable reference, rather than relying on high-Q resonant circuits.
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 a compact and cost-effective AC input/DC output power supply capable of simultaneously providing both DC voltage and high-precision clock signals.
Implementation Method 1
a voltage conversion means for taking an AC voltage as input and generating a secondary voltage
Implementation Method 2
a waveform shaping means for receiving the second AC voltage and outputting a square wave voltage signal
Implementation Method 3
a frequency adjustment means for adjusting a frequency of the square wave voltage signal to be a predetermined frequency
Data Source
AI summary
[Issue] To provide a small size, low cost AC input/DC output power supply capable of supplying both a DC voltage and a high-precision clock signal.[Solution] An AC input/DC output power supply of the present invention includes: a voltage conversion means for taking an AC voltage as input and generating a secondary voltage, splitting the secondary voltage into a first secondary AC voltage and a second secondary AC voltage, and outputting the first and second secondary voltages; a DC voltage generation means for receiving the first secondary AC voltage and outputting a predetermined DC voltage; a waveform shaping means for receiving the second secondary AC voltage and outputting a square wave voltage signal; and a frequency adjustment means for adjusting a frequency of the square wave voltage signal to be a predetermined frequency, and thereby outputting a clock signal.