6 to 12 volts Converter Circuit using TDA 2003Two IC TDA2003 are used here, which are connected to oscillators and their results are identical, but 180 out of phase. Capacitors C3 and C6 determine the frequency of these oscillators respectively. When IC1's output charges capacitor C1 to the voltage across diode D2. When the output of IC1 is high, this voltage is also added to the C1. Now the
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TL062 Subwoofer Low Pass Filter
Many circuits of low-pass filter for subwoofer seem to be given, and also is just another. The circuit given here is depending on the TL062 of an opamp ST Micro Electronics. TL062 is really a high input impedance dual J-FET opamp, and this has very low power consumption and high slew rate. The opamp has good audio features and is quite suitable for this circuit.Outside these two opamps inside
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TDA2822 Stereo Amplifier circuit
TDA2822 is a stereo low-power op amplifier used in the Walkman and headphones. It can output 250 milliwatts. TDA2822 is an operational amplifier ideal for low production. It is a good option as a stereo preamplifier circuits high-powered amplifier. It has two inputs and two outputs that can generate 250 milliwatts of output.power. The circuit of the amplifier IC is well established for noise-free
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Police Siren circuit NE555
A lot of electronic circuits using NE555 timer IC here is the circuit diagram of a police siren NE55 timer IC-based. The circuit uses two timers NE555 ICs and each of them are arrested as astable multivibrators. The circuit will be fed somewhere between 6 to 15V DC and is quite high. Connecting an extra power amplifier in the output you can further enhance the sound.IC1 is connected as an astable
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LTC3440 5V Boost Converter Circuit
A simple 5V boost converter using LTC3440 is shown here. LTC3440 is a highly efficient DC to DC converter which can be operated from input voltages below, higher than or equal to the output voltage. In terms of synchronous rectification, LTC3440 provides up to 96 efficiency and up to 600mA of output current is guaranteed. The IC contains a built in synchronizable oscillator whose frequency whose
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100W MOSFET Power Amplifier based on IRFP240
A 100W MOSFET power amplifier circuit based on IRFP240 and IRFP9240 MOSFETs is shown here. The amplifier operates from a +45/-45 V DC twin supply and might deliver 100 watt rms into an 8t ohm speaker and 160 watt rms into a 4 ohm speaker. This Hi-Fi amplifier circuit is appropriate for lots applications like general purpose amplifier, guitar amplifier, keyboard amplifier. The amplifier and also
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AC to DC 90W Switching Adaptor Power
AC to DC 90W Switching Adaptor PowerAC to DC adapter circuit switching contactors maximum output power of 90W. Switching power supply is constructed using a high voltage power switching regulator IC MC33374 and additional components. The MC33374 is a monolithic IC for high-voltage power switching regulators that are specially designed to operate directly from a rectified AC line source, and the
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