Time Delay Flash Trigger Circuit Circuit
The 4093 integrated circuit (IC) contains four independent 2-input NAND gates with Schmitt trigger characteristics, which provide a high degree of noise immunity and are suitable for use in digital circuits requiring clean transitions. In this configuration, two of the NAND gates (U1-a and U1-b) are utilized to create a set-reset (SR) flip-flop.
The set-reset flip-flop operates by using the NAND gates to store a binary state. The output of U1-a is connected to one input of U1-b, while the output of U1-b is fed back to one input of U1-a, forming a feedback loop essential for maintaining the state of the flip-flop. The other inputs of both NAND gates are connected to the set (S) and reset (R) control signals. When the set input is activated (logic high), U1-a outputs a logic low, which in turn causes U1-b to output a logic high, thereby setting the flip-flop. Conversely, activating the reset input causes U1-b to output a logic low, which resets the output of U1-a to logic high.
This configuration allows for stable binary storage, where the outputs can remain in their respective states until the set or reset inputs are activated again. The Schmitt trigger action ensures that the transition between high and low states is clean, eliminating any unwanted oscillations or noise that could affect the reliability of the flip-flop operation. This circuit is commonly used in applications requiring memory storage, pulse generation, and state retention in digital systems. The circuit is built around a single 4093 quad 2-input NAND Schmitt trigger. Two gates from that quad package (Ul-a and Ul-b) are configured as a set-reset flip-flop.
Related Circuits
The circuit diagram depicted in Figure 5 illustrates a system for charging a lead-acid battery using 220V AC power. The circuit employs a capacitor, buck converter, and diode rectifier for this purpose. A red LED indicates the charging status....
This simple circuit tests speakers, microphones, transformers, and voltage. It is essentially a very low-frequency oscillator that generates extremely short, distinctive pulses. The sound produced is easy to hear and allows for precise localization, making it ideal for checking...
This Korean SuperCap OEM supports usage in series configurations. Consider whether the implementation will be manual or automatic, such as with a smart battery charger or a power fail backup circuit. It is essential to balance the voltage and...
This circuit is designed for selective tuning adjustments between two closely spaced audio tones. The frequency is determined by the values of the capacitors and resistors in the feedback circuit connecting the collector and base of transistor Q1. With...
An AC mains operated single LED flasher circuit is constructed using the widely utilized CMOS timer chip TLC555. The entire circuit is powered directly from the 230VAC grid supply via a capacitive potential divider and associated components. This compact...
GND and VCC are positioned perpendicularly to the other pins in the circuit diagrams, while the actual Z80 is a DIP with no pins in these locations. This arrangement complicates the readability of the circuit diagram, necessitating a mapping...