Recent content by legendary_

Greetings! I am actually confused on what is the maximum and minimum voltage at the drain pin of IRF3000 MOSFET. Here is the datasheet: http://www.datasheetcatalog.org/datasheet/irf/irf3000.pdf Here is what the datasheet says: VDSS = 300V I wonder if this is the maximum or minimum voltage. I...

Ball Collector Robot using Android phone.

ln(x+10)+ln(x+4)=2 ln[(x+10)(x+4)] = 2 (x+10)(x+4) = e^2 x^2 + 14x + 40 = e^2 x^2 + 14x + 40-e^2 = 0 x = ( -14 +- sqrt((14^2)-4*1*(40-e^2)) ) / (2) [quadratic formula] x = answer

1. Given: 1 classroom : 12 fluorescent 1 fluorescent : 110 Watts 1 office : 6 fluorescent 1 year : 240 days $0.082 : 1 kWh 1 unoccupied period : 4h per day $ ? [cost] : 1 year 2. Let's use the quantity of units for analysis. The objective here is to match the units on the right side to the...

1. Use Kirchoff's Voltage Law (sum of voltages around the loop of the circuit):2. However, we need to determine the voltage across the inductor and capacitor. Just do research, the voltage of the inductor is: V_L = Ldi/dt V_C = (1/C) integral (idt)3. Using KVL: Ldi/dt + (1/C)integral(idt) =...

Here is how to solve the problem: Use finite states to have a picture of the problem easily. State 1: V_a1 = 1 m^3 T_a1 = 25 deg C + 273 = 323 K P_a1 = 500 kPa m_b1 = 5 kg T_b1 = 35 deg C + 273 = 308 K P_b1 = 200 kPa State 2: T_a2 = T_b2 = 20 deg C + 273 = 293 K (thermal...

Greetings! I would like to know which is better for PWM application: IGBT or MOSFETS? Here are the specs for maximum ratings: 1. The supply voltage is 400V. 2. The output of PWM is 5V @ 40 KHz What IGBT/MOSFETS device suit the most of this ratings? Please provide link for the datasheet. A...

Greetings! This is my first thread. I am creating a 200V bulb dimmer using PWM and IGBT. Currently, this is how I connect the components: The output of the PWM goes into the gate of IGBT. The bulb connects in series with the 220V supply and the collector of IGBT. The emitter of IGBT is...