Position：Home » Technical Articles
What is a shunt in electronics?
Writer：Microhm Page View：Date：2018-10-22
Microhm Electronics Ltd. is professional in SHUNTS for your diverse applications. A shunt is an element that is used in a circuit to redirect current around another part. The areas of application vary widely. For some applications, electrical devices other than resistors can be used. A few examples are given to illustrate the diversity of shunts. Shunt resistors, some time called ammeter shunt or Current shunt resistors, are low resistance precision resistors used to measure AC or DC electrical currents by the voltage drop those currents create across the resistance.
A crowbar circuit is used to product a circuit from a too high voltage. When the voltage gets too high, a device will short circuit. This results in the current flowing parallel to the circuit. This causes immediately a voltage drop in the circuit. The high current through the shunt should trigger a circuit breaker or a fuse.
Sometimes Microhm's shunts with a capacitor are applied in circuits where high-frequency noise is a problem. The capacitor redirect the noise to the ground before the undesired signal reaches the circuit elements,
When one element in a series circuit fails, it will break the complete circuit. A shunt can be used to overcome this problem. The higher voltage that exists due to the failure will cause the shunt to short out. The electricity will pass around the defective element. A good example of this is Christmas lighting which are wired in series. When the filament burns out in one of the incandescent light bulbs, the full line voltage appears across the burnt out bulb. A shunt across the burnt out filament will then short out to bypass the burnt filament and allow the rest of the string to light. If too many lights burn out however, a shunt will also burn out, requiring the use of a multimeter to find the point of failure.
Microhm Electronics Ltd. is a leader in custom shunt resistors. Welcome to contact us for more details at any time.
A crowbar circuit is used to product a circuit from a too high voltage. When the voltage gets too high, a device will short circuit. This results in the current flowing parallel to the circuit. This causes immediately a voltage drop in the circuit. The high current through the shunt should trigger a circuit breaker or a fuse.
Sometimes Microhm's shunts with a capacitor are applied in circuits where high-frequency noise is a problem. The capacitor redirect the noise to the ground before the undesired signal reaches the circuit elements,
When one element in a series circuit fails, it will break the complete circuit. A shunt can be used to overcome this problem. The higher voltage that exists due to the failure will cause the shunt to short out. The electricity will pass around the defective element. A good example of this is Christmas lighting which are wired in series. When the filament burns out in one of the incandescent light bulbs, the full line voltage appears across the burnt out bulb. A shunt across the burnt out filament will then short out to bypass the burnt filament and allow the rest of the string to light. If too many lights burn out however, a shunt will also burn out, requiring the use of a multimeter to find the point of failure.
Microhm Electronics Ltd. is a leader in custom shunt resistors. Welcome to contact us for more details at any time.
Keywords：
Latest News
- Resistor's role in measuring and correcting LED,,,
- Single through-hole resistors' characteristics ,,,
- Why shunt resistors for current sense applicati,,,
- Metal-film resistors with small size, high resi,,,
- 36W High-Current Shunt Resistors MMS8420,,,
- 1W Surface Mount Resistor MPR1206,,,
- An Overview of Microhm Electronics' Resistor Pr,,,
- More anti-sulfur resistors used in harsh envir,,,
- Resistance changes with temperature,,,
- 140W TO247 High Power Heatsinkable Resistor,,,
- MMS5930 is ideal for current sensing in industr,,,
- Shunt resistors selection for engineers' design,,,
- Considerations for choosing precision resistors,,,
- Ceramic Encased Cement Resistors NWH Series for,,,
- Resistors for Passive Balancing in Battery-Pow,,,
Hot Articles
- Microhm will take part in 10th Automotive World,,,
- Thanks for Visiting Microhm's Booth E5-5706 in ,,,
- Resistors in Short Supply: Blame Cars,,,
- New lunch: High Power Precision Shunt Resistor,,,,
- How to Test a Resistor,,,
- Innovative Technology, Future Electric: Electri,,,
- What is Precision Resistors?,,,
- SMD Resistors Sizes and Packages,,,
- The Construction and Features of Metal Film Res,,,
- What is a TO-220 Resisor?,,,
- Hot Selling Products: Precision Shunt Resistors,,,
- How to Calculate the Equivalent Resistance Valu,,,
- What is a Fixed Resistor?,,,
- Resistors in LED Circuits,,,
- Resistors Types and Materials Overview,,,
Resistance applications
- Industrial Roberts Applied to Solar Photovoltai,,,
- The Four Important Functions of Alloy Resistors,,,
- BMS for New Energy Vehicle,,,
- Carbon Film Resistors' Features and Application,,,
- Surface Mount Resistor's Size and Package ,,,
- The Main Application for High Precision and Low,,,
- Miniature future for passive electronic compone,,,
- Why Zero-Ohm Resistors?,,,
- Precision Resistors' Construction and TCR,,,
- Urbanization Development Bringing the Transform,,,
- Heater Blower Motor Resistor in Air Conditioner,,,
- Select the Right Resistor for Harmonic Filterin,,,
- Difference Between High Precision Resistors and,,,
- Shunt Resistor MMS8420 for High Current Stable ,,,
- The Measurement Accuracy of Automotive Shunt is,,,
microhm@microhm.com