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How do you calculate the capacitance value of filter capacitor for full-wave bridge 12VDC power supply?
THe Filter capacitor value depnds on the maximum current I of the Power supply , Switching frequency and the permissible ripple
C= (I * (1/2f ))/ ( V * %Ripple) - for a full wave rectifier
C= (I * (1/f ))/ ( V * %Ripple) - for a Half wave rectifier
Where
C= Capcitance in Farads
I = Current in Amps
f = Switching Frequency
V = Nominal voltage in this case 12 V
Reji J Thoppil
What else can I help you with?
What kind of supply is given to schering's bridge?
schering's bridge is used to measure capacitance and dissipation factor of a capacitor. AC voltage is given to the terminals of bridge and bridge is balanced by varying resistance and capacitance in the opposite arm.
What is the application of schering bridge?
to measure unknown capacitance
What is the reason of the frequency limitation in bridge?
A bridge has an upper frequency limit because above that frequency the measuement accuracy fails because of stray capacitance and inductance inside the bridge device.
Maxwell's inductance capacitance bridge?
The Maxwell Bridge is known as an AC bridge. This bridge is used to find the self inductance and the whole amount of a circuit.
How do you calculate cable distance using farads?
All underground cables have relatively high values of capacitance, due to the close proximity of their cores and earthed (grounded) metallic sheath. Manufacturers provide data for their cables, which express their capacitance in terms of capacitance per unit length, e.g. microfarads per metre.Certain categories of underground cable-fault can be located by measuring the capacitance (using an appropriate bridge circuit) of the healthy section of the cable then, having determined the capacitance per unit length for that type of cable, measuring-off the distance along the cable route to the fault position.
What kind of supply is given to schering's bridge?
schering's bridge is used to measure capacitance and dissipation factor of a capacitor. AC voltage is given to the terminals of bridge and bridge is balanced by varying resistance and capacitance in the opposite arm.
How can I check a capacitor on an AC unit?
To check a capacitor on an AC unit, you can use a multimeter set to the capacitance setting. First, make sure the power to the unit is turned off. Then, discharge the capacitor by using an insulated screwdriver to bridge the terminals. Next, remove the capacitor and use the multimeter to measure the capacitance. If the reading is significantly lower than the labeled capacitance, the capacitor may be faulty and in need of replacement.
How do you measure capacitor's value?
The equation of a capacitor is dv/dt = i/c. The capacitor resists a change in voltage, inversely proportional to its capacitance. One way to measure capacitance is to plot voltage and current through a resistor following a voltage step change. The slope at any point will give you the answer. Another way is to measure the resonant frequency in circuit with an inductor. Another way is with a Maxwell bridge. See "How do you draw the vector diagram of maxwell's capacitance bridge?"
How do you draw the vector diagram of maxwell's capacitance bridge?
The Maxwell bridge measures capacitance or inductance by balancing the unknown capacitor or inductor against known inductors or capacitors, with known resistors. In order to balance a bridge, there must be zero voltage across it. As a result, the vector for the capacitance leg must be exactly 180 degrees opposite, and of equal length, to the vector for the inductance leg.
Which is the best bridge for capacitance measurement?
schering bridge
Hay bridge is mainly used for..?
capacitance
What is the application of schering bridge?
to measure unknown capacitance
What are applications of schering bridge?
A Schering Bridge is a bridge circuit used for measuring an unknown electrical capacitance and its dissipation factor.
Disadvantages and advantage of maxwell bridge?
ADVANTAGES 1.It yields simple expressions for unknown inductance and capacitance. 2.The two balanced equations are indepent of frequency. DISADVANTAGES 1.Low Q-Coils. 2.Variable capacitor is required.
What type of electrical bridge can be used for the measurement of dielectric loss of a capacitor?
Schering bridge
What is the main idea in Maxwell bridge?
The main idea of the Maxwell bridge is to measure an unknown inductance by comparing it with a known inductance and resistance in a bridge circuit. By balancing the bridge, the unknown inductance can be determined by the ratio of the two inductances.
How use bridge method for inductance and capacitance?
the method can't be used in that case... not that effective
