NHÓM – LỚP Đ8-ĐTVT MEMBER: - Phạm Văn Thành Phạm Thị Bích Lụa Vũ Thị Ngát Nguyễn Thị Minh Thu Dương Thị Hồng Hoàng Thị Hường Unit Task make a list of things in your house which use electronic - Fax Computer Television Lamp Printer Task Find out the meaning of these abbreviations - IC : integrated circuit - Hi- fi ( high –fidelity ) : high quality sound reproduction which is true to thr orginal sound - CD: Compact disc Task - Washing Machine Television Radio Microwave Oven Water Heater Record Players Tape Recorders Task Date Early 20 th century 1947 1958 Future Invention Vacuum tube Transistor IC Applications in home Radios , television Portable radio Automatic washing machine Multimedia entertainment system , computer controlled robot Task List of way in which you think electronics maybe used in the home in the future - In the future , there’ll have a robot all the chore - In the future , there’ll have an infinity power source like electric - In the future , there’ll have an 5D printer Task Circuit diagram and block diagram Systems approach to electronics Task There are 11 symbols in fig there are : - Fixed resistor Capacitor Aerial Earth Lound speakers Diode Bipolar transistor PNP and NPN Ap amp Fixed capacitor Electrolytic capacitor Variable capacitor Describe the value of the components : - R2: a one kilohm resistor R3: a forty seven kilohm resistor C1: a five to sixty five picofarad variable capacitor C2:a hundred pico farad capacitor C3:a ten micro farad electrolytic capacitor P1: a five kilohm potentiometer L1:a four hundred and seventy micro henries inductor Task Describe the value of these component - R2: a one kilohm resistor C1: a five to sixty five picofarad variable capacitor R3: a forty seven kilohm resistor C3:a ten micro farad electrolytic capacitor P1: a five kilohm potentiometer - L1:a four hundred and seventy micro henries inductor Task Consists Microhenry Variable Variable capacitor Picofarads Connected Diode Supply Task 10 : Work in pairs Task 11 : Is composed of modulator Oscillator Carrier Amplifier Signal Power Aerial Answer Question The diagram of an amplitude-modulated (AM ) radio transmitter It is composed of an RF oscillator , a modulator , an Rf power amplifiler , an AF amplifier The RF oscillator is connected to modulator , the AF amplifier I linked to modulator , the modulator is connected to RF power amplifier , the microphone is linked to AF amplifier , and Rf power amplifier is connected to aerial The RF oscillator generates an RF carrier wave The microphone converts sounds into audio frequency signals AF amplifier is amplifi audio frequency signals Modulator uses the amplifier AF signal to modulate the RF carrier wave Rf power amplifiler increase the power of the modulated carrier wave ... Describe the value of the components : - R2: a one kilohm resistor R3: a forty seven kilohm resistor C1: a five to sixty five picofarad variable capacitor C2:a hundred pico farad capacitor C3:a ten... L1:a four hundred and seventy micro henries inductor Task Describe the value of these component - R2: a one kilohm resistor C1: a five to sixty five picofarad variable capacitor R3: a forty seven