![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
What is the function of rectifier diode parallel capacitor resistor after switching power supply transformer The DC power supply is connected in parallel with a capacitor and a resistor through the rectifier diode of the switch transformer. What are the functions of the capacitor and the resistor
It is common to form a peak absorption circuit. When the half cycle peak of the transformer comes, the peak will charge the capacitor after the resistance current limiting. When the cycle peak is converted to the second half cycle, the capacitor will discharge through the current limiting resistance. This is probably such a working process
RELATED INFORMATIONS
- 1. The ratio of electric power to current voltage resistance in parallel circuit P1:P2=_____ ( I ) ______ ( U ) ————（ R ） Just give me the alphabet. No text
- 2. In a circuit, the maximum range of the ammeter is a ampere, and the voltage is B volt. There is a variable resistor Rx. Q: how to expand the range of the ammeter ten times
- 3. A resistance marked "1K ohm, 10W", the maximum current allowed to pass is_____ The maximum voltage allowed to be applied to both ends of the resistor is. When the voltage at both ends of the resistor is 40V, the actual power consumed is. (it is assumed that the resistance does not change with temperature)
- 4. How many kilowatts per hour
- 5. A light bulb is marked with pz220-40, which is connected to the home circuit. Its rated power is the actual power
- 6. When a power supply is connected with 8 ohm resistor, the current passing through the power supply is 0.1 a
- 7. Measure resistance with voltmeter and ammeter 1. Measure the resistance of the small light bulb when it normally emits light by voltammetry (only once) 2. Adjust the sliding rheostat to make the small bulb glow under the rated voltage 3. Fill the measured value in the table and calculate the resistance Laboratory equipment: There are 3 dry batteries, 1 switch, 1 voltmeter, 1 current expression, 1 sliding rheostat (20 Ω), 1 small bulb (3.8V) and dry root of wire
- 8. How many kilowatts is 1p equal to
- 9. How many kilowatts is a kilovolt ampere What about the formula?
- 10. The ratio of the resistance value of the two resistors is 1:2. If they are connected to the circuit in series, the ratio of voltage is? The ratio of electric power is? The ratio of electricians in the same time? In parallel
- 11. A bulb marked with "24 V 40 W" is connected to a 36 V power supply. In order to make it shine normally, what resistance should be connected in series? The power consumed by this resistance
- 12. How many watts is the power supply of 220 V, 3a, 50 Hz? My power supply is the power supply of the computer, which is standard for Jinhe Tian chassis
- 13. When an electric furnace works, it converts electric energy into heat energy, When an electric furnace works, it turns electric energy into heat energy; when an electric furnace works, it turns electric energy into heat; when an electric furnace works, it turns electric energy into internal energy! Which statement is correct? What's the difference between the three?
- 14. What is the power factor of 380V and 180A?
- 15. On the number axis, the distance from point a to the origin o is equal to 2, and on the left side of the origin, the distance from point B to the origin is equal to 7. Find the distance between two points a and B. if the position of point a remains unchanged and the distance between two points a and B is equal to 9, what is the number represented by point B?
- 16. As shown in the figure, in RT △ ABC, ∠ ACB = 90 ° and AC = B, BC = a, ab = C, the bisector of ∠ A and ∠ B intersects at O, the distance from O to AB is OD, what is the quantitative relationship between od and a, B, C I know the answer is od = (a + B-C) / 2,
- 17. By establishing the space rectangular coordinate system and proving that the normal vectors of two planes are perpendicular, we can deduce: are these two planes perpendicular to each other?
- 18. What is the formula for calculating the standard deviation?
- 19. Given that {an} is an arithmetic sequence, a1 + A2 +. + A50 = 200, A51 + a52 +. + A100 = 2700, then what is A1 equal to
- 20. The problem of discontinuity The number of discontinuities of function f (x) = SiNx / x + e ^ X / 1-x is? When x = 0, there is a discontinuous point? Why is this? Is the point function undefined, or does the limit not exist, or does the limit exist but not equal to the value of the point function? 1-x is the denominator as a whole. Why isn't the function defined at 0?