Diagram below show the typical flyback. This flyback mostly found in a direct view color television or computer monitor. The right side show us the high voltage section. This section consist of HV to CRT, focus, and screen divider network. On monochrome an black-and-white TV, the flyback transformer do not have screen divider and focus.
The flyback have a ferrite core that constructed with precision gap that mostly made from pieces of tape or plastic spacer. For focus and screen divider we use a potentiometer and resistor with value 10s to 100s M ohm. D1 to D3 are used to rectify the high voltage that will read open on typical DMM or VOM
Possibly Related Articles:
- Circuit Breaker
We can use a circuit breakers to limit the current in a single circuit in most household applications. Although breakers come in many sizes, typically a single circuit is limited... - Electronic Fuse for DC Circuit
Tired replacing your power supply fuses, or it cost too much because too often to blow? Use this electronic fuse and your life would be easier. It is good for... - 5-Band Graphic Equalizer Circuit Using LA3600 Integrated Circuit Chip
Using a special purpose single IC chip LA3600, we can build a graphic equalizer with low components count. The internal design of the chip uses transistors gyrator circuit, with connections... - Self-Powered Current Sensing Circuit
This current sensing circuit sense the current at the high side (between positive supply and load). This circuit take the benefit of the microampere supply current and Rail-to-Rail input of... - Active Power Factor Correction Circuit
Active power factor correction stabilize the electrical demand of a device to give the best power factor characteristic of many types of loads. To meet power factor regulation, a low... - Variable (Adjustable) Current Limiter Circuit
This circuit provide automatic current limiting up to 8.4A. Unlike current limiter that uses only a resistor, this current limiting circuit doesn’t drop the voltage, or at least keep the... - Basic Uninterruptible Power Supply Circuit
Basic interruptible Power Supply Circuit consist of regular power supply adapter and battery connection. This basic system is a “hot” battery connection, meaning that there is no switching mechanism in... - SCR And Triac Triggering Circuit With A Positive Power Supply
The control-circuit output current has to be amplified when the gate current required to trigger the device is higher than the control-circuit output current capability. For example, A lot of... - Pulse-Train Triggering Circuit for Power Control
Typical circuit for welding equipment shown on the following circuit diagram. Turn on delay can be controlled accurately with Potentiometer P2. We can discharge C1 at each line zero voltage... - Battery Current Monitor Circuit, A Single Supply Operation
By detecting a voltage drop in resistor connected in series with the battery, we can measure the current flowing in or out of the battery. A simple differential amplifier do... - Current Sense Circuit, A Classic Design Using Positive Rail Sensing
A LT1637 is advertised as 1.1MHz, 0.4V/us Over-The-Top Micropower, Rail-To-Rail Input and Output Op Amp. This features are suitable for current sensing application since input voltages are right at the... - Transformerless Voltage Booster Circuit: A DC-DC Step-Up Switching Regulator Using Transistors
A DC-to-DC step-up converter is traditionally implemented using transformer, working by converting the DC voltage to AC Voltage, step-up it using transformer, then rectify and filter the transformer’s output to ...
| 
