Question

Energy regulator power supply zener diode with BZ 6 volts is used for regulating the load current to be 4 milliamperes, and the unregulated input is 10 volts. What should be the value of the series resistor RS​?

Answer 1

To calculate the value of the series resistor RS, we can use Ohm's law and the formula for the voltage across a zener diode.

First, let's determine the voltage across the series resistor RS. Since the unregulated input is 10 volts and the zener diode has a voltage of 6 volts, the voltage across the series resistor will be the difference between these two values: 10 V - 6 V = 4 V.

Next, we can use Ohm's law (V = I * R) to calculate the value of the series resistor. We know that the load current (I) should be 4 milliamperes, which is equivalent to 0.004 amperes.

So, using the formula V = I * R, we can substitute the known values:

4 V = 0.004 A * RS

To solve for RS, we can divide both sides of the equation by 0.004 A:

RS = 4 V / 0.004 A = 1000 ohms

Therefore, the value of the series resistor RS should be 1000 ohms.

Step-by-step explanation:

Answer 2

To find the series resistor value for a Zener diode regulator with a load current of 4 milliamperes and a 10-volt input, we use Ohm's law and get 1000 ohms.

Step-by-step explanation:

To determine the value of the series resistor RS for an energy regulator power supply with a Zener diode rated at 6 volts, we can use Ohm's law. Given that we want to regulate a load current of 4 milliamperes (0.004 A) and the input voltage is 10 volts, we can calculate RS using the formula: RS = (Vin - Vz) / Iload.

In this case, Vin is the unregulated input voltage (10 V), Vz is the Zener voltage (6 V), and Iload is the desired load current (0.004 A). Therefore, RS = (10 V - 6 V) / 0.004 A which equals 1000 ohms. Hence, the value of the series resistor, RS, needed is 1000 ohms.