[Result report] Chap1. Regulator & DC-DC converter소속학년학번분반실험조이름1. Experiment’s GoalUnderstand the basic principle and applicable method of Regulator & DC-DC converter and make circuit which produces +5V, -5V with Regulator & DC-DC converter.In addition, make circuit which varies voltage if distance vary with sensor.2. Design Procedure[Experiment 1] Regulators with LM78051) realize Figure.7 DC Parameters in LM7805’s datasheet2) Input +7V.3) check that the output voltage is +5V while we change input voltage values.4) Find the Threshold Voltage value which the output voltage drops[Experiment2] Amplification with uA741 and LM78051) realize Figure.13 Adjustable Output Regulator in LM7805’s datasheet2) Input +7V.3) check that the output voltage4) we change the variable resistance until output voltage is +8V, +12V, +15V.5) record resistances[Experiment 3] Regulators with LM79051)realize circuit in LM7905’s datasheet2) Input -7V.3) check that the output voltage is -5V while we change input voltage values.4) Find the Threshold Voltage value which the output voltage drops[Experiment4] DC-DC converter1) 1),2),3) in the [Experiment1] (LM7805)2) implement the DC-DC converter and capacitor in the circuit.3) Check if the output voltage is +5V and -5V although the input voltage vary[Experiment5] Sensor1) 1),2),3) in the [Experiment1] (LM7805)2) implement the sensor in the circuit.3) Observe that output voltage changes according to the distances between the object and the sensor in AC and DC3. Result[Experiment 1] Regulators with LM7805Threshold voltage: 6.4VInput voltage > 6.4V : Output voltage holds 5V.Input voltage < 6.4V : Output voltage doesn’t hold 5V.[Experiment2] Amplification the output voltage in regulator with amplifier uA741Input voltage: 15Voutput voltage: +8V => variable resistance: 7koutput voltage: +12V => variable resistance: 5koutput voltage: +12V => variable resistance: 4k[Experiment 3] Regulators with LM7905Threshold voltage: -6.1VInput voltage < -6.1V : Output voltage holds 5V.-6.1V< Input voltage