Analysis, design and experimentation with a four-element resonant immittance converter topology as a constant-current power supply

2018 ◽  
Vol 9 (4) ◽  
pp. 447
Author(s):  
Sunil Tiwari ◽  
Saylee Koli ◽  
Mangesh Borage
Keyword(s):  
Power Supply ◽  
Constant Current ◽  
Immittance Converter ◽  
Converter Topology ◽  
Analysis Design

Design and Implementation of Mid-Frequency Magnetron Sputtering Power Supply Based on TL494 and MCU

2013 ◽  
Vol 709 ◽  
pp. 408-412
Author(s):  
Yan Ling Zhao ◽  
Rong Xing Liu
Keyword(s):  
Magnetron Sputtering ◽  
Power Supply ◽  
Current Mode ◽  
Voltage Regulation ◽  
Control Circuit ◽  
Constant Current ◽  
Loop Control ◽  
Pulse Width Modulator ◽  
Digital Pulse ◽  
The Stability

Abstract. A mid-frequency magnetron sputtering (MFMS) power supply based on TL494 and MCU was introduced. A Buck Chopper and full bridge inverter were applied to the main circuit. The PWM controller TL494 was used in the Buck voltage-regulation control circuit to realize closed loop control. The drive signal of the IGBT in full bridge inverter was based on precise digital pulse width modulator (DPWM) signal produced by the MCU M30290. The DPWM can be set by potentiometer so the power supply can output the square wave with adjustable frequency and duty cycle. The power supply was operated in constant current mode. For micro or strong arcing of the target, different safeguards were adopted by the control circuit. At last, the system test and experimental results show that the stability, reliability and tuning range of the MFMS power supply can meet the requirements of the magnetron sputtering coating.

A multipurpose power supply for constant current, constant voltage, and constant power applications

2021 ◽  
Vol 92 (11) ◽  
pp. 114706
Author(s):  
Geethanjali Pandeswara ◽  
Naresh Pasula ◽  
Geshma Kumari R
Keyword(s):  
Power Supply ◽  
Constant Current ◽  
Constant Voltage ◽  
Constant Power
Sign in / Sign up

Export Citation Format

Share Document