2021年1月13日 · I am building a power amp with the chip LME49830 as driver stage for IRFP240/IRFP9240 mosfet quads, it's going to be used for bi-amping to drive the woofers of my speakers, each speaker has a pair of 9" woofers whose impedance @20 …

2012年10月4日 · LT1166+LME49830 design by Bob Cordell Hi Vic, Take a look at my layout in this thread, LME49830+LatFET, yet another for design review. there is an optimal position for the LME49830 which will have short gate drive leads. The LME49830 heatsink is a limiting factor in reducing the gate drive track length.

I designed a LME49830 with foldback current limit and the popular 2sk1530/2sj201, the circuit is similar to the an1850 from ti. Unfortunately I can only simulate the circuit in tina-ti because I don't have the LME in lt-spice. BUT I don't have the 2sk1530 mosfets in tina-ti 🙁 So I tried to simulate it with irfp240 and irfp9240 and it nearly ...

2011年9月20日 · the IC is a very nice circuit, unfortunately the LME is obsolete since not so long time 🙁 seems that TI wanted to sell more of their own class D solutions instead of the old school class AB circuit... i designed an amplifier with the LME which is going 6 times in a dsp based 6 channel active speaker system 🙂 but with my own pcb layout. good that i …

This connection completes the return path to feedback the output voltage to the mute gain circuitry inside LME49830. If the Osense pin is not connected to the output or it is floated, high voltage generated from the output stage may cause damage to the speaker or load.

2016年11月27日 · Hello, I want to build a Mos-Fet (single-ended / high-voltage / medium-power) amplifier with the Texas Instruments LME49830 driver : in my application, I just have to cope with positive input signals so I only need one N-Channel Mos-Fet for the output stage. Could someone (with solid know-how)...

2009年4月29日 · Now I have enough plug-in driver boards to do LME498xx comparison efficiently. Three driver boards will be prepared for working with two pairs of NJL3281D/1302D. I will see do we need driver stage for 49830 and 49811, and more.

2014年4月28日 · The LME49830 is designed for use with MOSFETs. I suspect most of the chip is identical to the LME49810 or LME49811, but the circuit that biases the output stage is different. They are all high fidelity input stages with good specs.

2010年9月4日 · This is an implementation of National's reference design for LME49830 with two matched pairs of 2SK1530+2SJ201 per channel. The PCBs were made using National's gerbers (thus National's logos). The PCBs were made using National's gerbers (thus National's logos).

2012年12月16日 · Current capability of BIAS pin of the LME49830 pin is below 3mA (according to data sheet) so a current source is needed to supply this current in order to the LT1166 works fine. Probably your amplifier doesn't sound at the best quality because there is a current difference between N-channel and P-channel MOSFETs, since they are not totally ...