Speakers And Temperature Protector For PA

Tuesday, May 16th, 2017 - Audio

Speakers And Temperature Protector For PA is working to protect the speakers from the DC current that goes to the speaker and gives the time delay on the interconnection of power amplifiers and speakers when first turned on so that the spikes voltage amplifier output is not connected to the speakers. Speakers And Temperature Protector For PA is equipped with temperature sensors that function to monitor the temperature on the final power amplifier. Speakers And Temperature Protector For this PA in pairs between the power amplifier and speakers, then the temperature sensor (thermostat) attached to the cooling power amplifier.

Featured Speaker From And Temperature Protector For PA

  • Protects power amplifier from short circuit (shorting the line speaker output)
  • Avoid over-temperature on the final power amplifier
  • Protect speakers from spikes when the output voltage is turned
  • Protect the speaker from the DC leakage currents of the power amplifier

Circuit Of Speaker And Temperature Protector For PA

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Component List of Speakers And Temperature Protector For PA

  • R1-2 = 27 Kohms; R3 = 1.4 Kohms; R4 = 1 Mohms; R5-14-17 = 3.3 Kohms; R6-7 = 100 Kohms; R8 = 47 Kohms; R9-11 = 120 Kohms; Kohms R10 = 470; R12 = 15 Kohms; R13 = 1.5 Kohms; R15 = 4.7 Kohms; R16 = 33 Kohms; R18 = 1.5 Kohms 5W
  • C1 = 100uF 63V-2; C3 = 470nF 100V MKT; C4-5 = 47uF 25V
  • Q1-2-3 = BC337; Q4 = BC639;
  • D1 = 1N4148; D2 = 1N4004; D3 = 15V 1.5W Zener; D4 = 1N4002; D5-6 = LED
  • Relay RL1 = 24V
  • RTH = KTY81-122
  • IC1 = LM393

Before the plug on the power amplifier circuit of Speakers And Temperature Protector For PA was necessary in the first set voltage on R3 (0.78 V) as a reference voltage for temperature sensors. Way of setting the reference voltage temperature sensor on the Speakers And Temperature Protector For this PA is to set the value of R2 (VR).

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