Hobby Robotics 9
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Gate automatic lamp circuit
The circuit utilizes multiple integrated circuits to form an automatic lighting device that is activated by door and window sensors. It includes CD4093 digital integrated circuits, a relay, and a power supply circuit. The system typically remains closed when a...
Direction and speed control
This circuit functions similarly to the one depicted in Fig. 57-4. The key differences include the placement of the field across the rectified supply and the armature being positioned within the SCR bridge. Therefore, the field current is unidirectional while...
Motorized Video Camera Mount
The camera rotator circuit utilizes a 2716 EPROM to store a logic value table that governs the motor driver (H-bridge) circuit. The schematic illustrates the EPROM data. By employing the EPROM, a significant number of discrete gates are eliminated. The...
Gray Projects
After learning to operate the device, it became evident that inertia posed a significant challenge. The constructed system is notably heavy, making it difficult to initiate motor operation at full speed. Despite having some understanding of physics, practical experience is...
Automatic Room light Control With Bi Directional Visitor Counter
The objective of this project is to create a controller-based model that counts the number of individuals entering a specific room and activates the lighting accordingly. This is achieved through the use of sensors that detect the current number of...
Sensor-Activated Relay Pulser Circuit
A sensor activates transistor Q1 to turn on the low-frequency 555 oscillator, which generates pulses to control LAMP II. The sensor may respond to variations in light or temperature. Either resistor RA or RB can function as the sensor, depending...
motor control inverter (AC drive) in mine industry
Motor control, energy efficiency of inverter (AC drive) selection, and parameters setting guidance in the mining industry: vector control, open loop or closed loop control, with energy braking unit or energy feedback unit.
In the context of motor control for the...
2Y-Y-2 - connection four-speed motor switch control circuit
The 3-119 circuit shown in the figure combines switch SA to realize the stator windings, specifically the 2, Y, and 2Y connections, which correspond to the motor speed n1.
The 3-119 circuit is designed to facilitate the control of motor speed...
Wire Break Sensor Alarm Circuit Schematic
The circuit of a loop sensor-based simple security alarm is described here. The sensor loop consists of a short length of thin enamelled copper wire.
The loop sensor security alarm operates on the principle of detecting interruptions in the circuit formed...