What is horizontal oscillator?
(electronics) The oscillator that produces, under control of the horizontal synchronizing signals, the sawtooth voltage waveform that is amplified to feed the horizontal deflection coils on the picture tube of a television receiver. Also known as horizontal oscillator.
What is the function of horizontal section in television receiver?
As in the vertical system; there is generally a driver between the Television Horizontal Deflection Circuit oscillator and the horizontal output stage. Its function is to isolate the oscillator and to provide drive power for the horizontal amplifier.
What is horizontal circuit?
A horizontal deflection circuit makes a sawtooth current flow through a deflection coil. The current will have equal amounts of positive and negative current. The horizontal switch transistor conducts for the right hand side of the picture. The damper diode conducts for the left side of the picture.
What is horizontal drive transistor?
The horizontal output transistor (HOT) is a switch. It provides a path for current to flow through the flyback’s primary winding and horizontal yoke as shown in Figure 2. The HOT is switched on and off by a signal applied to the base. This drive current is supplied by the horizontal driver and driver transformer.
What does horizontal deflection mean?
The category descriptions and the measures they include are presented below. A horizontal deflection hinders the ability of a motorist to drive in a straight line by creating a horizontal shift in the roadway.
What is local oscillator frequency?
In electronics, a local oscillator (LO) is an electronic oscillator used with a mixer to change the frequency of a signal. This frequency conversion process, also called heterodyning, produces the sum and difference frequencies from the frequency of the local oscillator and frequency of the input signal.
How many horizontal lines of resolution are in an HDTV system?
1125 horizontal lines
The characteristics of a HDTV are 1125 horizontal lines per frame, 30 frames per second, and a 27 MHz bandwidth.
What is vertical circuit?
Vertical Circuits is a global supplier of advanced die level vertical interconnect packaging technology, products, services and intellectual property for the manufacture of low-cost, ultra high-speed/high-density semiconductor components.
What is meant by horizontal deflection system?
This voltage which is of the saw tooth waveform is applied to the horizontal deflecting plates to sweep the beam horizontally. Hence the name sweep voltage or time base voltage. A sweep generator is used to produce this sweep voltage. The sweep generators may employ vacuum tube circuits, transistors or ICs.
How is vertical deflection calculated?
Generally, deflection can be calculated by taking the double integral of the Bending Moment Equation, M(x) divided by EI (Young’s Modulus x Moment of Inertia).