mosfet amp

140W IGB power amplifier HIFI

As collect power amplifier hifi circuit come to many the circuit. Today I begs for to advise the circuit that uses IGB be important equipment. And still give tall drive arrives at 140W interesting good. This circuit still very bias keep well be amp class AB. At power shape the loud sound is excellent. Use power supply model Amp OCL the general by use Voltage +43V GND -43V. And should use the size current 5Amp sizes go up then give enough tall usual this circuit uses 8ohm loudspeakers s have are having about 120-145Watt. when see the circuit may inappropriate for a novice. If you will build should are careful specially request enjoy have. Power amp HIFI good listen please sir.

Be the first to comment - What do you think? Posted by admin - August 11, 2008 at 1:14 pm

Categories: mosfet amp, Power Amplifier Tags: class AB Amplifier, ocl amp, Power-Amp-MOSFET

Mosfet Amplifier OTL 100W by K1058,J162

This includes a 220uF capacitor and two diodes to slow down the switch-on to reduce the output thump as the output capacitor charges through the speaker. This is not essential, depending on speaker sensitivity, with my own speakers there is just an unobtrusive low frequency sound at switch-on. With other applications such as a bi-amp or tri-amp system with active crossover filters, this addition may become more useful to avoid low frequencies reaching high frequency speaker drivers. It may also have some point if a high sensitivity speaker is used, so it makes sense to include it in this low noise version.

Be the first to comment - What do you think? Posted by admin - April 30, 2008 at 11:57 am

Categories: mosfet amp Tags: fet amp, J162, K1058, mosfet amps

Class-A MOSFET Amplifier by 2SK1058

This is simple Class-A MOSFET Amplifier, used mosfet 2SK1058 in circuit.
It is easy to make, Must use supply volte 24V at high current. read more

I am using this Class A Amplifier with a 12AU7 based valve preamp. It produces the most purest sound. I have no idea of distortion levels etc. but it has a very fine grain and delicately textured quality. With only one watt of output efficient speakers must be used. Bass is better than the design predicts and the amp drives my 12″ 63L based 3-way speakers with ease.

Read More Source: http://diyaudioprojects.com/Solid/ZCA/ZCA.htm Thank you.