0
Inductance should be low in decoupling capacitors because the purpose of the decoupling capacitor is to absorb voltage transients due to suddent shifts in current due to switching activities, such as in a logic gate or high speed op-amp. If significant inductance were present, the power pin on the device would be allowed to dip or rise in voltage, potentially destabilizing the circuit. As circuit switch time becomes less and less, decoupling becomes more and more important. Even a short wire has inductance, and at the higher frequencies encountered in high performance circuits, that inductance becomes a critical factor. As a result, decoupling capacitors are place right next to the device being protected, often right across the power pins.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What will be the inductance in inductive circuit at low frequency?
The inductance doesn't change, but the impedance (equivalent to resistance) will be very low.
What is the functions of ceramic capacitor?
Ceramic capacitors can be used anywhere a capacitor having very low internal parasitic inductance is required. Most commonly they are used as powersupply bypass capacitors. They are also sometimes used for coupling capacitors for HF signal amplifiers.
What does LT stand for in power transformer?
Transformer Inductance?
How would you wind a coil which has a resistance but essentially no inductance?
I wouldn't. I doubt this is possible. Wire, by definition will have inductance. The inductance will increase as the frequency increases, so I guess you could specify a frequency that is extremely low to use the coil at.
Electrical contact materials used in switches brushes and relays must possess what?
they should possess low inductance as the sparking will be less during the time of opening
What will be the inductance in inductive circuit at low frequency?
The inductance doesn't change, but the impedance (equivalent to resistance) will be very low.
What is the functions of ceramic capacitor?
Ceramic capacitors can be used anywhere a capacitor having very low internal parasitic inductance is required. Most commonly they are used as powersupply bypass capacitors. They are also sometimes used for coupling capacitors for HF signal amplifiers.
What are uses capacitors?
.Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies..Capacitors are used in virtually every area of electronics, and they perform a variety of different tasks. Some capacitors are used for coupling, others for decoupling, while others may be used in filters, and some may be used for power supply smoothing. Again some capacitors will be used in low frequency circuits, and others in high frequency circuits.
What the function of polarized electrolytic capacitor?
Electrolytic capacitors are used for power filter, decoupling, signal coupling and time constant setting, DC blocking, etc. Polarized electrolytic capacitors usually play a role in power supply circuits or intermediate frequency and low frequency circuits for power supply filtering, decoupling, signal coupling, time constant setting, and DC blocking. Generally electrolytic capacitors cannot be used in AC power circuits. When used as filter capacitors in DC power circuits, its anode (positive) should be connected to the positive terminal of the power supply voltage, and the cathode (negative) should be connected to the negative terminal of the power supply voltage. Otherwise it will damage the capacitor. We're JYH HSU(JEC) Electronics Ltd (or Dongguan Zhixu Electronic Co., Ltd.), an electronic components manufacturer. You may google search "JYH HSU" to find our official website.
What is the function of electrolytic cell?
Electrolytic capacitors are used for power filter, decoupling, signal coupling and time constant setting, DC blocking, etc. Polarized electrolytic capacitors usually play a role in power supply circuits or intermediate frequency and low frequency circuits for power supply filtering, decoupling, signal coupling, time constant setting, and DC blocking. Generally electrolytic capacitors cannot be used in AC power circuits. When used as filter capacitors in DC power circuits, its anode (positive) should be connected to the positive terminal of the power supply voltage, and the cathode (negative) should be connected to the negative terminal of the power supply voltage. Otherwise it will damage the capacitor. We're JYH HSU(JEC) Electronics Ltd (or Dongguan Zhixu Electronic Co., Ltd.), an electronic components manufacturer. You may google search "JYH HSU" to find our official website.
What does LT stand for in power transformer?
Transformer Inductance?
Capacitors block......... frequencies filling the blank?
It depends on whether the capacitor is series or shunt. If series, capacitors block low frequencies. If shunt, capacitors block high frequencies.
How would you wind a coil which has a resistance but essentially no inductance?
I wouldn't. I doubt this is possible. Wire, by definition will have inductance. The inductance will increase as the frequency increases, so I guess you could specify a frequency that is extremely low to use the coil at.
Electrical contact materials used in switches brushes and relays must possess what?
they should possess low inductance as the sparking will be less during the time of opening
What is the cause of Hum in AC Capacitors?
Hum is caused in (low frequency) AC capacitors by electrostatic forces between the capacitor's plates, causing them to vibrate.
What has the author Ahmad Hammoud written?
Ahmad Hammoud has written: 'Low temperature characterization of ceramic and film power capacitors' -- subject(s): Dielectric properties, Exposure, Low temperature, Cryogenics, Capacitors, Electric equipment
Why capacitor banks are not recommend with generator sets?
A generator is a highly inductive device with low resistance. Capacitors are, well, capacitive. when you have an inductor near a capacitor, you can get ringing. This is known as ferroresonance. The capacitance and inductance form an LC tank circuit, which causes excessive overvoltages. Generators are typically high impedance grounded, which contributes to ferroresonance issues.
