what is the whole working of this circuit and the
purpose of each component??
what is metal oxide varistor and its purpose in this
circuit??
how is changing the R1 will change the frequency of generated sine
wave??
Purpose of each component:
C1: Stabilized power supply, and you don’t have a resistor in serial with the capacitor it could even be the electronic current limiter that triggers due to the spike.
C2, R1, R1: this resistor and capacitor is used to decide the switching frequency. Describe below in working.
R3, R4 : current limiting resistor connected to IC and LED respectively.
D1: diode D1 protect from reverse power flow
R5, R6: current limiting resistor connected in series with gate pulse of mosfet
T1, T2: switching mosfet
C3, C4: It is used to smooth the output voltage.
RDN240: varistor used to protect from transients
Working:
Astable operation is enabled by a high level on the ASTABLE input or a low level on the ASTABLE input, or both. The period of the square wave at the Q and Q Outputs in this mode of operation is a function of the external components employed. “True” input pulses on the ASTABLE input or “Complement” pulses on the ASTABLE input allow the circuit to be used as a gatable multivibrator.
The formula for calculating the frequency or the RC components are:
f = 1/8.8R1C2 at pin#10 and pin#11
f = 1/4.4R1C2 at pin#13
Where f is in Hz, R in Ohms and C in Farads.
Pulse time may be obtained by solving:
t = 2.48RC where t is in seconds, R in Ohms and C in Farads
metal oxide varistor and its purpose:
Generaly due high frequency switching power electronic devices misbehave something ( transients in the circuit). This transient contain voltage spikes harmonics component at output of inverter.
To reduced the transients of inverter Varistor is connected acrass the output of inverter transformer. Spikes are shorted through the device within nanoseconds by varistor
what is the whole working of this circuit and the purpose of each component?? what is...
For the multi loop circuit shown in the Figure. What is the current in each branch ? SHOW all branch currents in the diagram below. SHOW your loops in the diagram below. Please TYPE or write neat so I can understand. THANK YOU!!! R1 = 2.0 22 R2 = 4.0 22 W V1 = 6.0 V R3 = 6.02 V3 = 6.0 V R5 = 10 22 V2 = 12 V R4 = 8.0 R6 = 12 22
Homework 4 Due: June 26, 2019, at 5 pm. Note: Show all steps required to get to your answers and make sure to box them. Writing down answers to questions asked without any explanation(s) will not do it. Clarity should be a priority Moreover, the assigned textbook for this class is Sedra and Smith, Microelectronic Circuits, Seventh Edition, Oxford University Press. Make sure you have the proper book Reminder: In class, we have expressed the overall voltage gain of a...