AmplifierCircuits

High Quality, powerful unit: 90W into 4 Ohm load Also suited as guitar or bass amplifier 60W MosFet Audio Amplifier 60W MosFet Audio Amplifier Description To celebrate the hundredth design posted to this website, and to fulfil the requests of many correspondents wanting an amplifier more powerful than the 25W MosFet, a 60 - 90W High Quality power amplifier design is presented here. Circuit topology is about the same of the above mentioned amplifier, but the extremely rugged IRFP240 and IRFP9240 MosFet devices are used as the output pair, and well renowned high voltage Motorola's transistors are employed in the preceding stages. The supply rails voltage was kept prudentially at the rather low value of + and - 40V. For those wishing to experiment, the supply rails voltage could be raised to + and - 50V maximum, allowing the amplifier to approach the 100W into 8 Ohm target: enjoy! A matching, discrete components, Modular Preamplifier design is available here: Modular Audio ...

240W MOSFET Power Audio Amplifier A high power audio amplifier circuit which can output up to 240W on a 4Ω speaker. This mosfet amplifier is built with BUZ23 and uses a 40V symmetrical power supply. Connect the NTC close to the heatsinker. MosFet 240W power amplifier schematic 240W MOSFET Power Audio Amplifier

Features: HIGH INTERNAL DISSIPATION — 200 WATTS HIGH VOLTAGE, HIGH CURRENT — 200V, 20A HIGH SLEW RATE — 50V/µS 4 WIRE CURRENT LIMIT SENSING LOW DISTORTION EXTERNAL SLEEP MODE CONTROL OPTIONAL BOOST VOLTAGE INPU APPLICATIONS: SONAR TRANSDUCER DRIVER LINEAR AND ROTARY MOTOR DRIVES YOKE/MAGNETIC FIELD EXCITATION PROGRAMMABLE POWER SUPPLIES TO ±95V AUDIO UP TO 400W Circuit Diagram: Equivalent circuit 400 Watt MOSFET Operational Amplifier Pin connection for 400 Watt MOSFET Operational Amplifier

Features high internal dissipation - 250 watts high voltage. high curent - 100V, 30 A high slew rate - 100V/uS 4 wire curent limit sensig low distorsion external shutdown control Description: The PA05 is a high voltage MOSFET power operational amplifier that extends the performance limits of power amplifier  in slew rate and power bandwidth, while maintaining high current and power dissipation ratings.  The PA05 is a highly flexible amplifier. The shutdown control  feature allows the output stage to be turned off for standby operation or load protection during fault conditions. Boost voltage inputs allow the small signal portion of the amplifier to operate at a higher voltage than the high current output stage. The amplifier is then biased to achieve close linear swings to the supply rails at high currents for extra efficient operation.  EQUIVALENT SCHEMATIC: Circuit diagram for 500W MOSFET POWER OPERATIONAL AMPLIFIERS PA...

Features: ■ Multipower BCD technology ■ MOSFET output power stage ■ DMOS power output ■ New high efficiency (class SB) ■ High output power capability 4x28 W/4  @  14.4 V, 1 kHz, 10 % THD, 4x50 W max, power  ■ Max. output power 4x72 W/2  ■ Full I2C bus driving: – Standby – Independent front/rear soft play/mute – Selectable gain (for low noise line output  function) – High efficiency enable/disable – I2C bus digital diagnostics (including AC  and DC load detection) ■ Full fault protection ■ DC offset detection ■ Four independent short circuit protection ■ Clipping detector (2 %/10 %) ■ Linear thermal shutdown with multiple thermal  warning ■ ESD protection Description: The TDA7564B is a new BCD technology quad  bridge type of car radio amplifier in Flexiwatt25 /  PowerSO36 package specially intended for car  radio applications.  Thanks to the DMOS output stage the TDA7564B  has a ve...