[SOLVED] Powering a 16V Buzzer with 24V Supply

[daneloctober]

Ok, so I need to power a 16V max Buzzer [datasheet: https://www.mouser.com/ds/2/252/MSR516NPR-24363.pdf]

Now, I have to work with a 24 V source. I know I could use a divider, but I think the resistors I would be needing have to be either a lot of small ones (1/4W) or a few BIG (>1W) ones. What would you recommend?...

And I'm having trouble modelling the buzzer in a simulator. In the datasheet, it says that it can draw a maximum of 12mA at 16V (I just assumed...), so is it ok to just model the whole buzzer as a resistor (16V/12mA = 1.3k) in series with a 12mA current source? If not, then what should it be?...

 

[IanP]

Ok, so I need to power a 16V max Buzzer [datasheet: https://www.mouser.com/ds/2/252/MSR516NPR-24363.pdf]

Now, I have to work with a 24 V source. I know I could use a divider, but I think the resistors I would be needing have to be either a lot of small ones (1/4W) or a few BIG (>1W) ones. What would you recommend?...

And I'm having trouble modelling the buzzer in a simulator. In the datasheet, it says that it can draw a maximum of 12mA at 16V (I just assumed...), so is it ok to just model the whole buzzer as a resistor (16V/12mA = 1.3k) in series with a 12mA current source? If not, then what should it be?...

Have you considered a Zener diode, [24-16]=8.2V in rough mathematics ..

:wink:
IanP

 

[BradtheRad]

Your buzzer may be the kind which draws pulses of current, on-again-off-again.

In any case you might as well model it as a 1.3k resistor.

Here are screenshots showing how you would drop the 24v supply to 16v, using a resistor or a zener (per post #2).

Since the load current is small, you can use low wattage components.