I have an industrial application I'm trying to design a solution for. Using a base 24vdc power supply I need to provide 40vdc - up to 2A. That part's not difficult - plenty of pre-engineered designs to chose from. I'm looking at the TPS43060EVM-199 as my starting point now as it looks like a pretty clean solution to my very inexperienced eye.
The catch is, for my application I need to pulse the voltage down to 32 volts for signaling purposes. The ideal output should look like a square wave. The pulses will be about 8 microseconds of duration and spacing between them for transmitting bits of data.
The above power supply, using its dedicated controller, uses a simple resistor divider to determine the output voltage. So it's trivial to switch a second resistor in and out with the divider to achieve a different set point. So on paper this looks ideal.
Here's the part I'm not sure about. As is typical in these power supply designs there are capacitor banks for both the input and output to filter the power and provide a clean output. My concern is will the output capacitors impact the desired pulses and result in more of a delay in change resulting in something closer to a sine wave? Is it possible to accomplish what I'm trying to do using a single power supply or do I need a separate 40 volt and 32 volt and simply switch between them?
The catch is, for my application I need to pulse the voltage down to 32 volts for signaling purposes. The ideal output should look like a square wave. The pulses will be about 8 microseconds of duration and spacing between them for transmitting bits of data.
The above power supply, using its dedicated controller, uses a simple resistor divider to determine the output voltage. So it's trivial to switch a second resistor in and out with the divider to achieve a different set point. So on paper this looks ideal.
Here's the part I'm not sure about. As is typical in these power supply designs there are capacitor banks for both the input and output to filter the power and provide a clean output. My concern is will the output capacitors impact the desired pulses and result in more of a delay in change resulting in something closer to a sine wave? Is it possible to accomplish what I'm trying to do using a single power supply or do I need a separate 40 volt and 32 volt and simply switch between them?