AN79 Linear Technology AN79 modifies methods presented in AN74, permitting verification of 30 nanosecond amplifier settling times to 0. 1% resolution. sampling-based technique used is detailed and results presented. Appendices cover oscilloscope overdrive issues, construction of a subnanosecond rise time pulse generator, amplifier compensation,
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circuit construction and calibration procedures. 555 Makes Handy Voltage to time Converter : 02/01/01 EDN-Design Ideas. The circuit in Figure 1 is a simple, low-cost voltage-to-time converter using ubiquitous 555 timer chip. You can use IC`s monostable multivibrator as a voltage-to-time converter by connecting analog-voltage input to charging resistor, R, instead of connecting R to VCC. With this modification, . 555 Timer as an A/D Converter : Measure voltages accurately with a microcontroller using this simple circuit. Includes sample program for Parallax Basic Stamp 555 timer Mono stable (one shot) circuit : The two circuits below illustrate using the 555 timer to close a relay for a predetermined amount of time by pressing a momentary N/O push button. The circuit on the left can be used for long time. 6 Digit 40MHz Frequency Counter Module : Here is design for a very low cost 6-digit frequency counter module using of shelf components (and not that expensive 74C926!). The standard circuit will display directly in Hz (1MHz max), and re is a separate on board divider that will allow you to display directly in KHz (approx 40MHz max). Because display reads directly in. (add 11/05) 74ACT74 makes Low-skew clock divider : 12/17/98 EDN-Design Ideas - Serial-data systems often generate an internal clock at twice data rate for mid-bit sampling or for generating bi-phase codes. External equipment and some internal processes require...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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