Design a diode voltage regulator to supply 1.5V to a 150-ohm load. Use two diodes specified to have a 0.7-V drop at a current of 10mA. The diodes are to be connected to a +5-V supply through a resistor R. Specify the value of R. What is the diode current with the load connected? What is the increase resulting in the output voltage when the load is disconnected? what change results if the load resistance is reduced to 100 ohms? to 75 ohms? to 50 ohms? (Hint: use the small signal diode model to calculate all changes in output voltage.)