| Electronics > Beginners |
| igbt high side. how to increase load current |
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| elektronJack:
I want to increase the current to a load eg light bulb. which is connected to ground.I would like to be able to increase the current up to 10amps or higher at a later point in my investigations, by manipulating the components of the circuit. I want the igbt on the high side ie between the + and the load and the load then connects to ground -. I'm using an igbt which i can turn off and on using a micro switch.Its all direct current. I dont want replies that refer to driver ics etc. I want it basic at this stage. The igbt I'm using is IKPO6N6OT but its not important at this stage of my investigation.It could be another type. Any helpful basic suggestions regarding circuits, components would be appreciated. ********************************************* What is happening in this circuit? There is a diode on the red line allowing current to flow from left to right. There is a 25v 47 microF capacitor on the blue line, + side on the left. The cny17-2 is an optocoupler. Any helpful replies will be appreciate. |
| MagicSmoker:
Using a high-side driver IC is by far the simplest solution, but you don't want that so your alternatives are a level shifter and bootstrap charge pump or use a fully isolated gate driver circuit with floating power supply. |
| langwadt:
why an IGBT? it'll have a lot of loss at 10A, what voltage? why not use a high side switch? |
| David Hess:
What is the voltage? IGBTs are only suitable for use at higher voltages where MOSFETs become uneconomical. |
| elektronJack:
Voltage could be 50v |
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