As shown in the figure, the circuit consists of a reference pulse generator, an input-triggered RS flip-flop, a delay circuit, and an integrating circuit.
In this circuit, IC1 (555) constitutes an astable multivibrator, which produces a pulse with a duty cycle of almost 100% and its output as a reference pulse. SR1 is an RS flip-flop that generates a trigger pulse for the JK1 flip-flop. IC6 is an inverting amplifier and IC7 is an integrator that produces a sawtooth triangle wave.
The biggest difference between Home Theater Projector and ordinary business projectors is the resolution and ease of use. Most of the mainstream Home Theater Projectors have a resolution of 1080P Full HD, and are equipped with an intelligent system, which makes the projector more convenient to use. Home Theater Projector mainly pursues brightness, color, and contrast, which can bring users an immersive and realistic experience.
Features
1. Large screen: The size of traditional LCD TVs is mostly between 40-70 inches, while the Home Theater Projector can easily project 100-150 inches of screen content.2. Diverse uses: Home Theater Projector will be equipped with intelligent systems, which contain a large number of film sources. In addition, the projector can also be connected to different devices through different interfaces, such as game consoles, computers, U disks, etc. Only one machine can realize online drama, listening to songs, games, office and other functions.
3. Diffuse reflection eye protection: Home Theater Projector uses the principle of diffuse reflection to form images, which is less harmful to the eyes than the LCD screen.
4. Diverse usage scenarios: Home Theater Projector can adapt to different sizes of bedrooms, living rooms and even dedicated audio-visual room scenes due to its different brightness.
According to the increase of people's needs, the forms of Home Theater Projector are also becoming more and more diverse. In the past, people's impression of Home Theater Projector was mostly a square box placed on a cabinet or suspended from the ceiling, but there are already portable projectors that take into account both the sense of use and the size. In addition to portable micro-projectors, larger home laser TVs are also developing rapidly. Many users have abandoned traditional LCD TVs and opted for home projectors when decorating. It can also be seen from this that Home Theater Projector has a trend of gradually replacing LCD TVs.
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