2SJ datasheet, 2SJ circuit, 2SJ data sheet: TOSHIBA – P CHANNEL MOS TYPE (HIGH POWER AMPLIFIER APPLICATIONS),alldatasheet. 2SJY(F) Toshiba MOSFET MOSFET P-Ch V 12A Rdson Ohm datasheet, inventory, & pricing. Toshiba 2SJ Explore Discrete Semiconductors on Octopart: the fastest source for datasheets, pricing, specs and availability.

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I had to guess and check with my ammeter to get a good value. Does bass preamp will work like a filter? Well, that is the easy route to take for designing an output stage. If i connect 25v 5amp ac and 10inch 4ohm subwoofer, what power will actually get when it use as a subwoofr amp?

I’ve tested an amplifier that used them, and they perform well enough, but it’s doubtful that there was really any advantage over using bipolar output transistors other than cost.

IF unblocked, this DC voltage will alter the bias setting s of the succeeding stages. Many fake lateral MOSFETs are re-badged vertical devices typically HEXFETsso source and drain are in the wrong places and the amp will provide close to a dead short across the power supply via the intrinsic body diodes.

The multiplication factor of gives the headroom needed for accurately reproducing a square wave or high frequency sinewavesince the gate driver needs a lot of current to quickly switch the MOSFET from OFF to ON.

Don’t run any signal wire close to a power supply wire or the power transformer. Set R1 at midpoint before powering up and datasheeet adjust it slowly in order to get a minimum voltage less than 50mV0 at the output. Use a current mirror with the LTP input to get as much gain as possible to allow for negative feedback, but do not solely rely on the feedback to make the amplifier better.


The R17 must set a current aprox of 1mA, so, we need a r to r. As it transpires, the design I was looking at was unsuitable for the intended purpose, because the quiescent current 2ssj201 to remove crossover distortion was too high to be practical. Reduce the fuse rating to mA.

2SJ201 MOSFET. Datasheet pdf. Equivalent

I accept the Terms and Coditions. Also note that this amp was built on a breadboard. Reducing your expectations of datasheer maximum frequency that needs to be passed at full power will reduce the loading on the Class-AB drivers, but does nothing for the MOSFET low current linearity. Also what use capacitors C1 and C2 in parallel?

Do the tweeter have impedence? Preset R8 can be used for adjusting the quiescent current of the amplifier. Hi BC VCeo is 80 volt but is only 50volts, hence it will be oprating at the brim and may get damaged, hence it is preferable to use BC only.

It may be possible to select the zeners to achieve basic current limiting, giving the amp some protection from overload conditions. R8 to adjust no signal current adjustment of 50mA.

That is why we need to buy a few extra and match them together. As I powered up, Q5, Q6, and Q7 blew up. 2sj01 Tags Add Your Tags: Lateral devices are almost unbeatable in this respect. Seetharaman, please post the W mosfet Amplifeir circuit here. We want to measure what the load is doing, not what it should be doing.

You cannot use 25 volt transformer. After fixing the problem datasheett adding a class AB driver, distortion was greatly decreased BJTs are often used, but they do not respond well to even momentary overloads.


Tracks connected to Q7 Q8 source and drain and loud speaker. Only lateral MOSFETs provide a crossover point on their transfer characteristics that is low enough for linear operation. Thank you sir, god bless you. This will show that the threshold voltage falls as T j increases datasheeh a negative temperature coefficient. A few tens of millivolts of gate voltage is the difference between acceptable quiescent current and overheating.

So a Class-A driver would need daatsheet set to 3. The exact values around the Vbe multiplier also known as a bias servo are critical to ensure that the thermal performance is matched as closely as possible.

I need your help…. Try this W Hi-Fi mosfet Amplifier http: Figure 6 – Normalised V th Vs. This amplifier will burn. Amplifier Circuits Audio Circuits. As far as I’m aware, there are no exceptions to the above. Hi Harry as per following link it is a good performer.

I think preamp will datasheer only increase the voltage level of the input signal, but when we split a signal into two actually the current is divided into two.

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The current to reproduce a sinewave will be a bit lower, since it is a smooth curve, but this much headroom will drastically lower distortion. Email to a Friend.

2SJ Datasheet PDF – Toshiba

Thank you sir for the PCB layout. Something must be terribly wrong with my circuit. Will the preamp be helpful in 2sj20 gain? Of course R17 must be ohm.