Showing posts with label output. Show all posts
Showing posts with label output. Show all posts
Thursday, October 30, 2014
Low Output Power Amplifier
This Low Output Power circuit was a presented,it can go power output around 1 Watt, whilst connected to a power supply 9 volt. The pro of this Low Output Power Amplifier is with the purpose of it uses a dual dear ton to enhance the size at the same time as much as of input impedance about 20 Meg ohm. This circuit unlike other circuits,the input impedance is a constant about 20 Meg ohm each time, whether to adjust the volume control on several level.
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| Low Output Power Amplifier Diagram Schematic |
The components participating in the circuit, it is tightfisted, especially the BC549 transistor output amount after the increase force be present very distorted, it have got to reduce the current level to a safe By dipping the volume down. The sector output in place of the R1 and C1 in order to reduce the oscillator profit is, the truth to the output sector, with an op-amp acts drive dual complementary.
Monday, September 15, 2014
Mixed acoustic connection to an amplifier with two bridge output channels
Consider the circuit connection to the AC amplifier with two bridge output channels. Dynamic head BA1, BA2 speakers form the left and right stereo channels. They are shown conventionally broadband. Low-frequency head BA3 is connected between the output of the amplifier left and right channels, the signals are summed and head reproduces a mono signal.
This connection will be sure to have two high-pass and low-pass filter for the stereo for the total channel. Their mission - to eliminate the parallel operation and overload amplifier heads. Usually used for stereo first order filters (C1, C2), for the total - the second (C3L1) or third.Their payment is made in the usual way. Crossover frequency of the LPF and the order chosen in the range 80 ... 200 Hz, depending on the location of the low-frequency head. If it is placed in the rear compartment, the crossover frequency should be selected as low as possible, and the order - up to avoid reproducing the subwoofer "voice" of the range. However, this requires the manufacture of relatively large inductors.Used in their construction ferromagnetic yokes undesirable because the distortion caused by the inevitable core magnetization significantly degrade sound quality.
Original article sourse cxem.net
Thursday, September 11, 2014
Subwoofer amplifier with 30W output power
Amplifier circuit is very suitable for use in subwoofer amplifier system based on IC SI1030G. Amplfier has 30W output with 8 ohm impedance. Supply voltage required minimum of 12 volts and a maximum of up to 22 volts DC.
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