The PWM amplifier utilizes a high frequency carrier which is modulated by the incoming
audio signal. The resultant series of variable width pulse trains are switched by the main
high current switching amplifier. This section uses ultra high speed precision integrated
circuits to precisely control the on and off times of the output Mosfets. Two high current,
high voltage Mosfets are used. Each has a current capability of 65 amps in a circuit
limited to less than 16 amps. The output filter utilizes low loss iron cores and high quality
film capacitors.
The turn on/off function of the audio section is done with opto-isolators which allows us to
keep the control circuits fully isolated from the audio circuits.
Do NOT power up
with the volume level high. The internal
initializing circuits will “see” this as a fault condition and shut the amplifier down. The
protection LED will light and the amplifier will have to be powered down for >5
seconds and then reset. This has been done to protect all components in the system,
including YOUR ears!
Important note:
KRONOS
AMBER
Please we aware that ALL class D amplifiers have
high frequency emissions and therefore the
amplifier must be kept well away from the antenna.
Please we aware that ALL class D amplifiers have
high frequency emissions and therefore the
amplifier must be kept well away from the antenna.
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