DRV8872-Q1 Automotive 3.6-A Brushed DC Motor Driver With Fault
... inputs control the H-bridge driver, which consists of four N-channel MOSFETs that have a typical Rds(on) of 565 mΩ (including one high-side and one low-side FET). A single power input, VM, serves as both device power and the motor winding bias voltage. The integrated charge pump of the device boosts ...
... inputs control the H-bridge driver, which consists of four N-channel MOSFETs that have a typical Rds(on) of 565 mΩ (including one high-side and one low-side FET). A single power input, VM, serves as both device power and the motor winding bias voltage. The integrated charge pump of the device boosts ...
Fundamentals of Thermal Resistance Measurement
... detail the three dimensional conduction of heat from a component's hot core to its peripheral surfaces. Isothermal surfaces are uniquely defined by size and shape. Thermal resistance is isotherm specific: changing the size or shape of the isothermal surfaces used in Equation (1) will change the comp ...
... detail the three dimensional conduction of heat from a component's hot core to its peripheral surfaces. Isothermal surfaces are uniquely defined by size and shape. Thermal resistance is isotherm specific: changing the size or shape of the isothermal surfaces used in Equation (1) will change the comp ...
Skill Sheet 8-A Ohm's Law
... To work through this skill sheet, you will need the symbols used to depict circuits in diagrams. The symbols that are most commonly used for circuit diagrams are provided to the right. All of the circuits discussed in this skill sheet are series circuits. This means the current has only one path thr ...
... To work through this skill sheet, you will need the symbols used to depict circuits in diagrams. The symbols that are most commonly used for circuit diagrams are provided to the right. All of the circuits discussed in this skill sheet are series circuits. This means the current has only one path thr ...
P2 Topic 2
... current does not increase as much (as it gets higher) accept resistance has increased with increase in current for two marks ...
... current does not increase as much (as it gets higher) accept resistance has increased with increase in current for two marks ...
2011 Efficient Multiphysics Analysis of Drum Rollers Mircea Popescu INDUCTICA TECHNICAL CONFERENCE
... It is obvious that electromagnetic, thermal and mechanic aspects, all of them coupled by the electric motor model, have to be considered. The necessary complexity of the sub-models differs. While the mechanic load could be described by relatively simple equations, the electro-magnetic motor model i ...
... It is obvious that electromagnetic, thermal and mechanic aspects, all of them coupled by the electric motor model, have to be considered. The necessary complexity of the sub-models differs. While the mechanic load could be described by relatively simple equations, the electro-magnetic motor model i ...
120V-100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
... This allows the use of this device as a very high power amplifier (up to 180W as peak power with T.H.D.=10 % and Rl = 4 Ohm); the only drawback is the power dissipation, hardly manageable in the above power range. The typical junction-to-case thermal resistance of the TDA7293 is 1 oC/W (max= 1.5 oC/ ...
... This allows the use of this device as a very high power amplifier (up to 180W as peak power with T.H.D.=10 % and Rl = 4 Ohm); the only drawback is the power dissipation, hardly manageable in the above power range. The typical junction-to-case thermal resistance of the TDA7293 is 1 oC/W (max= 1.5 oC/ ...
CMOS Bandgap References (2)
... are often taken the same size, and different current densities(IC/IS) are realized by taking R1 greater than R2, which causes I2 to be greater than I1: ...
... are often taken the same size, and different current densities(IC/IS) are realized by taking R1 greater than R2, which causes I2 to be greater than I1: ...
ppt - EC - Unit 1 - Transistor, UJT, SCR
... rises, which in turn causes collector current to increase. This may lead to more power dissipation & further increase in temperature & subsequent increase in collector current. If this cycle continues, it may result in permanent damage to the transistor. This phenomenon is known as “Thermal Runaway” ...
... rises, which in turn causes collector current to increase. This may lead to more power dissipation & further increase in temperature & subsequent increase in collector current. If this cycle continues, it may result in permanent damage to the transistor. This phenomenon is known as “Thermal Runaway” ...
Experiment - TerpConnect
... Figure I-5 Here A is a digital ammeter and V a digital voltmeter. The variable resistance R can be achieved by choosing various combinations of resistances on the resistor board. It is important to note that the insertion of A introduces a small series resistance into the circuit and the insertion ...
... Figure I-5 Here A is a digital ammeter and V a digital voltmeter. The variable resistance R can be achieved by choosing various combinations of resistances on the resistor board. It is important to note that the insertion of A introduces a small series resistance into the circuit and the insertion ...
How to Define the LF Driver`s Key Parameters in
... Excessive current through high-side transistor, parameter 4.1 > ;0.88 A; Excessive current through low-side transistor, parameter 4.2 > ;1.1 A; Excessive positive voltage on VSHS detected, parameter 6.2 > ;1.25 A ;* RSH (1Ω) Excessive current through high-side transistor, parameter 4.1 > ;0.88 A; Mi ...
... Excessive current through high-side transistor, parameter 4.1 > ;0.88 A; Excessive current through low-side transistor, parameter 4.2 > ;1.1 A; Excessive positive voltage on VSHS detected, parameter 6.2 > ;1.25 A ;* RSH (1Ω) Excessive current through high-side transistor, parameter 4.1 > ;0.88 A; Mi ...
Thermal runaway
Thermal runaway refers to a situation where an increase in temperature changes the conditions in a way that causes a further increase in temperature, often leading to a destructive result. It is a kind of uncontrolled positive feedback.In other words, ""thermal runaway"" describes a process which is accelerated by increased temperature, in turn releasing energy that further increases temperature. In chemistry (and chemical engineering), this risk is associated with strongly exothermic reactions that are accelerated by temperature rise. In electrical engineering, thermal runaway is typically associated with increased current flow and power dissipation, although exothermic chemical reactions can be of concern here too. Thermal runaway can occur in civil engineering, notably when the heat released by large amounts of curing concrete is not controlled. In astrophysics, runaway nuclear fusion reactions in stars can lead to nova and several types of supernova explosions, and also occur as a less dramatic event in the normal evolution of solar mass stars, the ""helium flash"".There are also concerns regarding global warming that a global average increase of 3-4 degrees Celsius above the preindustrial baseline could lead to a further unchecked increase in surface temperatures. For example, releases of methane, a greenhouse gas more potent than CO2, from wetlands, melting permafrost and continental margin seabed clathrate deposits could be subject to positive feedback.