Electronics Coursework Example | Topics and Well Written Essays - 2500 words

Electronics - Coursework typesetters caseThe gain of an amplifier is usu altogethery given in decibels or its unit less if the input and output variables atomic number 18 the same (all current, voltage or power. The power gain of an amplifier depends on the sources and load resistances used and its voltage gain. The amplifier should be linear in most cases so its gain should be constant. Electronic amplifiers find their applications in Radios, television set Transmitters, Receivers, and high-fidelity stereo equipments, Microcomputers, and other electronic digital equipments.The 1M and 10k potentiometer/ disco biscuit boxes were used to set VCE and VBE to the determine shown in dodge 1 to give the input characteristics of the BJT. The voltages across RB were careful and enter for all measurements of VCE and VBE. The 10k potentiometer/decade box was s3et to its maximum value so that the output characteristics could be determined. The 1M potentiometer/decade box was adjusted to s et Ib to 10A, and the desired values of RB were calculated using the measured values of RB. the value of 10k potentiometer/decade box was adjusted for all values of VCE in table 2 of the results analysis charm Ib was kept constant. The voltage across the 100 resistor was measured and recorded for each combination of VCE and IB. In common emitter configu balancen, the input is connected between the point of view and the emitter while the output is taken between collector and emitter. The emitter is the common terminal as shown in the above figure. Emitter base voltage is the input voltage, base current flows in the circuit and then the in the output resister, hence there will be high power and voltage gains and its output and input voltage ratio is moderate hence this configuration is commonly used.Increasing the supply voltage causes the base current to be lower for a given value of base-emitter voltage this implies that higher values of supply voltage leads to greater collector-b ase junction reverse bias, hence greater depletion region