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6 Threads found on edaboard.com: Pwm 2n3055
i need some one to help me choose a transistor type for h- bridge control of dc motor if the dc motor rating be between 12-36 volt , so what kind of transistors can be used? see the link i need the types of q1 q2 q3 q4? ---------- Post added at 19:42 ---------- Previous post was at 19:40 ---------- i n
you can use mosfet instead of bipolar also i doubt abt 555 driving as mosfet need large transient current in switching you should look 4 pwm circuit i have many of them but i don't know how to send or upload them
I am Alexander am looking for a 12v to 220v inverter of 1Kw,2Kw,5Kw power circuit diagram pls help me forword your diagrams to . I built one of 800va but with no pwm section. pls help with my above request and also that of a pwm circuit Thank you Alexander
Hi,i don't think you can achieve pure sine wave using this method,pure sine wave is acheived by using pwm technics, the signal you are feeding to your transistors is an analog signal therefore your transistor will become very hot and even get burnt with the signal you are feeding into the base of the transistors.
For a realistic circuit for 500W, the entire circuit should be changed for multiple reasons, efficiency being a key factor. The driver stage should be replaced with MOSFETs. There should be output regulation under line/load variation. A pwm controller stage should be used. Features such as low-battery protection and overload protection should be im
Hi all, I need a variable power supply to control 2 H bridges which drive 2 DC motors. The max output current and voltage is 5A and 20V respectively. I have designed the following circuit based on Dave Jones's lab supply where the output voltage and current is set by filtered pwm signals. What can I do to improve the stability and quality on