Flip-Flop Latch Circuit Without Clock Buffer Power Loss
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Solution Overview
Problem
Flip-flop circuits in digital electronic circuits face challenges in reducing power consumption, particularly when not in operation, due to unnecessary power consumption in clock buffers.
Innovation Solution
The implementation of a latch circuit and flip-flop circuit that internally generate an inverted clock signal without a clock buffer, reducing power consumption by eliminating the need for a clock buffer and optimizing transistor connections to minimize power usage during idle periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clock buffer is used to generate inverted clock signal, then the flip-flop circuit can operate reliably, but power consumption increases unnecessarily when the flip-flop is not operated
Solution Approach 1:
The patent removes the clock buffer component from the flip-flop circuit entirely. Instead of using a separate clock buffer to generate inverted clock signals, the circuit uses the existing clock signal and data input signals to control transistor switching, thereby eliminating the unnecessary power consumption of the clock buffer while maintaining reliable operation
Solution Approach 2:
The patent makes the transistor network serve multiple functions: it controls data transmission during active operation and simultaneously generates the necessary inverted clock signals when needed. This multi-functionality eliminates the need for dedicated clock buffer components, reducing power consumption during idle periods while maintaining operational reliability
2Use of energy by moving object
If transistor connections are optimized to eliminate clock buffer, then power efficiency improves, but circuit design complexity increases
Solution Approach 1:
The patent merges the clock signal generation function with the data transmission control function by using the same transistor network for both purposes. The transistor connections are designed so that the clock signal and data input signals work together to control the circuit behavior, eliminating the need for separate clock buffer components and reducing overall circuit complexity despite the optimized transistor arrangement
Data Source
AI summary
A master latch circuit, including a first p-type transistor, a first n-type transistor, and a second n-type transistor connected in series; a first node connected to the first p-type transistor and the first n-type transistor, and a NAND circuit configured to receive a signal of the first node and a clock signal and output a result of a NAND operation to a second node, wherein a gate of the first p-type transistor is connected to the second node.