I am wanting to hook up a 12V fire alarm horn and strobe to an alarm clock speaker circuit. When the alarm clock goes off, it outputs 0.9V to the alarm clock speaker. I want to use this 0.9VAC and turn it into 12VDC to power my fire alarm horn and strobe, which will activate when the alarm clock goes off.
I am new to electronics, but my issue is I cannot find an AC Step Up Transformer that goes down to this low of voltage on the primary side. I am also unable to find a Full Wave Bridge Rectifier, that would work with this low of voltage.
The horn strobe can operate on as low as 8VDC, and draws about 150mA. Any help or suggestions would be a great help as I am new at this, and learning as I go. I have considered an Arduino, which puts out 5VDC but it can only handle 40mA max output. Would some type of MOSFET work? I am not sure quite how these operate yet, but just a thought. Thanks again.
I am new to electronics, but my issue is I cannot find an AC Step Up Transformer that goes down to this low of voltage on the primary side. I am also unable to find a Full Wave Bridge Rectifier, that would work with this low of voltage.
The horn strobe can operate on as low as 8VDC, and draws about 150mA. Any help or suggestions would be a great help as I am new at this, and learning as I go. I have considered an Arduino, which puts out 5VDC but it can only handle 40mA max output. Would some type of MOSFET work? I am not sure quite how these operate yet, but just a thought. Thanks again.