need tweeter protection circuit using hallogen bulb for pa system - diyAudio
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Old 12th March 2011, 04:25 PM   #1
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Default need tweeter protection circuit using hallogen bulb for pa system

hai all i need one passive crossover circuits for my pa system hf driver 150 watts,thank you all
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Old 13th March 2011, 03:15 AM   #2
djk is offline djk
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What is the impedance and the size of the voice-coil?
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Old 23rd January 2012, 03:50 AM   #3
mhtplsh is offline mhtplsh  India
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i can provide you as required by u.
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Old 25th January 2012, 01:26 AM   #5
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I think lightbulbs (of the correct size) work better than a Polyswitch or circuit breaker, and the zener and clipper circuits are not very good either.

The Polyswitch or circuit breakers have very long trip times, suitable for woofers, but of limited use for HF devices.

The lag in resistance changes for the lightbulb may be measured in 10s of milliseconds, and are well suited to HF driver characteristics.

Clipper circuits act to fast, and don't allow for the 10dB transient capability that most HF drivers posess.

Lightbulbs work.

If you want to guild the lilly, add a relay in parallel with the lightbulb.
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