for my audio, i always use toroid and cap bank which always secured by soft start board which never failed me. before using softstart, my fuse was always blown.
my experience with smps is only for pc gaming which only made my mcb trip. maybe you can just buy softstart board instead of thermistor only for feeling safe
too high resistance (Watt is too low) for 1 lamp but you can put them in paralel 3pcs
i secured several items of this kind of 1kW 110V vintage lamp from local storage guy for only $1 each
Projector Lamp 1000w 110v p28s Osram 58.8985e NEW OVP 1000 W 110 V 588985 E P 28 | eBay
I believe I recall some discussion about halogen bulbs needing to be operated at near there design voltage or they experienced a much shorter life. I refer you to this article.
How Dimming Alters the Halogen Cycle and Shortens Bulb Life
How Dimming Alters the Halogen Cycle and Shortens Bulb Life
I find interesting photos of mysterious vintage light bulbs room laboratory ?..many years ago..
This evening by luck I know the man himself and his fascinating collection
Brass and Gold on Vimeo
Go L'Amp and De-Light 🙂
This evening by luck I know the man himself and his fascinating collection
Brass and Gold on Vimeo
Go L'Amp and De-Light 🙂
Go for it!
You should start the voltage with -10 and slowly going to something like -7.
You need a very good heatsink. BTW i use SiCs instead before i put on the 182ES because if something wrong, i don't like to break a 182ES...
resistor should be high power.
You are going to need a preamp with very low impedance and high voltage output.
I would also recommend:
- increase 10mF of out to 22mF
- put a resistor in source to ground of about 0.1 ohm, high power, i use arcos 100W, which are like a fortress.
You should start the voltage with -10 and slowly going to something like -7.
You need a very good heatsink. BTW i use SiCs instead before i put on the 182ES because if something wrong, i don't like to break a 182ES...
resistor should be high power.
You are going to need a preamp with very low impedance and high voltage output.
I would also recommend:
- increase 10mF of out to 22mF
- put a resistor in source to ground of about 0.1 ohm, high power, i use arcos 100W, which are like a fortress.
thanks for the reply.
how i can protect the 182es?
start from -10v in the gate and then rise the VCC?
can i test high voltage, like 100v?
do i need to put diode for protection?
thanks
how i can protect the 182es?
start from -10v in the gate and then rise the VCC?
can i test high voltage, like 100v?
do i need to put diode for protection?
thanks
yes start from -10 and then go slow... checking temperature and amperage. I would say to have about 2-3A and then later based on your heat sinks and PSU you can go higher. No need to go high voltage, avoid it. Go till 65V. For now, you can test without the zener protection, as long as you keep your input till 10V, which is very high
only your ears can tell what is sweet spot for you
tip: keep main frequency at -10dbfs, rest will come
tip: keep main frequency at -10dbfs, rest will come
hi,
today i do some measurement with the 2sk182es chip
the lamp is about 20 ohm
vcc=30-60
when i decrease the bias from -10 to -1, the current increase only to 0.9A 😕
today i do some measurement with the 2sk182es chip
the lamp is about 20 ohm
vcc=30-60
when i decrease the bias from -10 to -1, the current increase only to 0.9A 😕
It's difficult to diagnose without knowing your setup. Please post pictures and description of your circuit (power supply, wiring, etc).
the setup is base on the L'Amp.
lm317 for the bias
3*regular lamp of 100W
change the PS to 60vdc
now its 60vdc with 0.5a and play fine, but way i cent increases the current?
edit:
strange: when i switch the lamp with 10ohm resistor, i can increase the current to 2.5A easy
lm317 for the bias
3*regular lamp of 100W
change the PS to 60vdc
now its 60vdc with 0.5a and play fine, but way i cent increases the current?
edit:
strange: when i switch the lamp with 10ohm resistor, i can increase the current to 2.5A easy
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