RC Delay Timing Circuit for Multi-Voltage Supply Sequencing
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Solution Overview
Problem
The high cost of application-specific integrated circuits (ASICs) makes it difficult to reduce manufacturing costs and effectively control the timing of voltage sources in multi-power supply systems, which is crucial for preventing simultaneous connections of different voltage sources to the same circuit.
Innovation Solution
A timing control apparatus comprising delay circuits with resistors and capacitors, and discharging circuits with switches, allowing for adjustable delay times and independent control of voltage source on/off timing, reducing the need for expensive ASICs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ASIC is used to control the timing of voltage sources, then the timing control reliability is improved, but the manufacturing cost increases
Solution Approach 1:
The patent replaces expensive ASIC with a combination of inexpensive components including delay circuits made from resistors and capacitors, flip-flops, and switches. These low-cost components achieve the required timing control function without the high manufacturing cost of ASIC, directly resolving the contradiction between reliability and manufacturing cost.
Solution Approach 2:
The patent substitutes the electronic ASIC system with a hybrid approach combining electronic components (delay circuits, flip-flops) and circuit-based timing mechanisms. This substitution maintains timing control reliability while significantly reducing manufacturing cost by using standard, inexpensive components instead of custom-integrated circuits.
2Ease of manufacture
If delay circuits with resistors and capacitors are used, then the manufacturing cost is reduced, but the timing control precision may be affected
Solution Approach 1:
The patent incorporates feedback mechanisms through the interconnected delay circuits and flip-flops that monitor and adjust timing sequences. The circuit automatically ensures proper timing relationships between voltage sources, maintaining precision despite using inexpensive RC components, thus resolving the contradiction between cost reduction and precision maintenance.
Solution Approach 2:
The patent uses adjustable resistors and capacitors in the delay circuits to fine-tune timing parameters. By changing component values, the circuit achieves precise timing control adaptable to different voltage source requirements, maintaining manufacturing precision while using cost-effective components.
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 enables cost-effective timing control of voltage sources, ensuring proper sequencing of voltage supply and discharge, thereby reducing manufacturing costs and improving the efficiency of multi-power supply systems.
Implementation Method 1
delay circuits with resistors and capacitors, allowing for adjustable delay times
Implementation Method 2
discharging circuits with switches, allowing for adjustable delay times and independent control of voltage source on/off timing
Data Source
AI summary
The present invention discloses a timing control apparatus to control the on/off timing of the voltage sources. The timing control apparatus includes a plurality of delay circuits coupling with the voltage sources, a plurality of discharging circuits coupling with the delay circuits and a plurality of switches coupling with the discharging circuits.