Logic Checker

Simplified logic checker. Logic voltage levels have the ability to display LED. "H" in the LED is green, "L" and red LED lights, and so both the open and goes out. But not only that was put on the ability to detect narrow pulses. In doing Shottomaruchibaibureta be extended to a short, pulse, this pulse of about 100ns in LED flash you can see it. This is handy for checking the presence of the signal and strobe. More: Indicator Red LED + green LED Threshold voltage Red light: 1.5V or less Green light: 2.5V or more Pulse detection In Power AAx3 (4.5V), 1mA Production costs \ 1,000 or less

The described circuit functions as a simplified logic checker, which is capable of indicating logic voltage levels through the use of two LEDs: a green LED for high logic levels ("H") and a red LED for low logic levels ("L"). The circuit is designed to provide visual feedback on the state of the input signals, allowing users to easily ascertain whether the logic level is above or below specific threshold voltages.

The threshold voltage for the red LED activation is set at 1.5V or less, while the green LED illuminates when the input voltage reaches 2.5V or more. This clear distinction enables users to quickly interpret the logic states. The circuit also incorporates functionality for pulse detection, specifically designed to capture narrow pulses of approximately 100 nanoseconds. This feature is particularly useful for observing transient signals or strobe pulses, which can be critical in various electronic applications.

Powering the circuit requires three AA batteries, providing a total of 4.5V, with a current consumption of approximately 1mA. This low power requirement enhances the circuit's usability in portable applications. The production cost is estimated to be around 1,000 yen or less, making it an economical solution for logic level indication and pulse detection tasks. Overall, this simplified logic checker serves as a practical tool for engineers and hobbyists alike, facilitating the monitoring of digital signals in a straightforward and efficient manner.Simplified logic checker. Logic voltage levels have the ability to display LED (Of course I (^_^;)." H "in the LED is green," L "and red LED lights, and so both the open and goes out . But not only that was put on the ability to detect narrow pulses. In doing Shottomaruchibaibureta be extended to a short, pulse, this pulse of about 100ns in LED flash you can see it.

This is handy for checking the presence of the signal and strobe. Indicator Red LED + green LED Threshold voltage Red light: 1.5V or less Green light: 2.5V or more Pulse detection In Power AAx3 (4.5V), 1mA Production costs \ 1,000 or less 🔗 External reference