Time Ratio Control
Time Ratio Control known as duty cycle control is a common method employed in the power electronic systems. It involves controlling the on and off times of the power semiconductor devices such as transistors or thyristors. This method is widely used in choppers, inverters and other power converters.
Working Principle
In time ratio control, the duty cycle represents the fraction of the time during which the power semiconductor device is the “on” state compared to the total switching period. The duty cycle is typically expressed as a percentage.
Example
The pulse width modulation (PWM) control scheme the duty cycle determines the width of the pulses generated. By adjusting the duty cycle the average output voltage or current can be controlled.
Applications
- Choppers: In DC-DC converters time ratio control is used to the regulate the output voltage.
- Inverters: In PWM inverters adjusting the duty cycle controls the magnitude of AC output.
What are the Control Methods in Power Electronics ?
In this composition we will learn about Control styles in power electronics, The Control styles in power electronics are abecedarian ways used to manage and regulate the inflow of electrical energy in electronic systems. These styles play a pivotal part in ensuring effective and dependable operation of the power electronic bias.
Table of Content
- What is Control Methods in Power Electronics?
- Key Terminologies
- Control Methods in Power Electronics
- Pulse Width Modulation (PWM)
- Feedback Control
- Hysteresis Control
- Time Ratio Control