Full-Bridge DMOS PWM Motor Driver A4950
... The A4950 is designed to operate DC motors. The output drivers are all low-RDS(on) , N-channel DMOS drivers that feature internal synchronous rectification to reduce power dissipation. The current in the output full bridge is regulated with fixed off-time pulse width modulated (PWM) control circuitr ...
... The A4950 is designed to operate DC motors. The output drivers are all low-RDS(on) , N-channel DMOS drivers that feature internal synchronous rectification to reduce power dissipation. The current in the output full bridge is regulated with fixed off-time pulse width modulated (PWM) control circuitr ...
LAB 1 - Northwestern Mechatronics Wiki
... motor to ground. For sufficiently negative values of the input voltage, the TIP32 pnp transistor will turn on, and the output voltage will be one diode drop higher than the input voltage. Current flows from ground through the motor to the –12V supply. ...
... motor to ground. For sufficiently negative values of the input voltage, the TIP32 pnp transistor will turn on, and the output voltage will be one diode drop higher than the input voltage. Current flows from ground through the motor to the –12V supply. ...
MAX750A/MAX758A Adjustable, Step-Down, Current-Mode PWM Regulators _______________General Description
... The MAX750A/MAX758A switch-mode regulators use a current-mode pulse-width-modulation (PWM) control system coupled with a simple step-down (buck) regulator topography. Input voltages range from 4V to 11V for the MAX750A, and from 4V to 16V for the MAX758A. The current-mode PWM architecture provides c ...
... The MAX750A/MAX758A switch-mode regulators use a current-mode pulse-width-modulation (PWM) control system coupled with a simple step-down (buck) regulator topography. Input voltages range from 4V to 11V for the MAX750A, and from 4V to 16V for the MAX758A. The current-mode PWM architecture provides c ...
USC_ESRDC_26May2009_Overview 2009
... • Use power converters to perturb system • Use correlation techniques to find impedances • Eliminate need for dedicated Network Analyzer by using existing digital control and ...
... • Use power converters to perturb system • Use correlation techniques to find impedances • Eliminate need for dedicated Network Analyzer by using existing digital control and ...
RHD5963 - Aeroflex Microelectronic Solutions
... mitigate total ionizing dose effects and single event latchup. These characteristics make the RHD5963 especially suited for the harsh environment encountered in Deep Space missions. It is guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RH ...
... mitigate total ionizing dose effects and single event latchup. These characteristics make the RHD5963 especially suited for the harsh environment encountered in Deep Space missions. It is guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RH ...
05 - CERN Indico
... tens of volts over the first few operating hoursimplementation of an external feedback loop has been made to compensate for this ...
... tens of volts over the first few operating hoursimplementation of an external feedback loop has been made to compensate for this ...
2016 Specimen Paper 2 Insert
... Extract 5: Disadvantages of HVDC transmission The disadvantages of HVDC are in conversion, switching, control, availability and maintenance. The required static inverters are expensive and have limited overload capacity. At smaller transmission distances the losses in the static inverters may be big ...
... Extract 5: Disadvantages of HVDC transmission The disadvantages of HVDC are in conversion, switching, control, availability and maintenance. The required static inverters are expensive and have limited overload capacity. At smaller transmission distances the losses in the static inverters may be big ...
SGA7489Z 数据资料DataSheet下载
... infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time with ...
... infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time with ...
LTC1152 - Rail-to-Rail Input Rail-to-Rail Output Zero-Drift Op Amp
... buffer circuits to operate with any input signal within the power supply rails; input signal swing is limited only by the output stage swing into the load. Additionally, signals occurring at either rail (power supply current sensing, for example) can be amplified without any special circuitry. Inter ...
... buffer circuits to operate with any input signal within the power supply rails; input signal swing is limited only by the output stage swing into the load. Additionally, signals occurring at either rail (power supply current sensing, for example) can be amplified without any special circuitry. Inter ...
electric circuit
... What is an electric current? An electric current is a flow of microscopic particles called electrons flowing through wires and ...
... What is an electric current? An electric current is a flow of microscopic particles called electrons flowing through wires and ...
Building Electrical System - CUNY Building Performance Lab
... • Loose connections are HOT • Corroded contacts are HOT • Scan all Breaker Panels once a year • Exercise Breakers / Switches once a year ...
... • Loose connections are HOT • Corroded contacts are HOT • Scan all Breaker Panels once a year • Exercise Breakers / Switches once a year ...
Electrostatic Discharge Power Transformation – An Approach to
... huge amount of usable electric power to a common load (i.e. a light bulb). It is assumed that this device uses these dissipated energy as input power to run without any other visible input power source. The since 20 years in Switzerland existing prototype (Fig. 1), is assumed to be able to utilize a ...
... huge amount of usable electric power to a common load (i.e. a light bulb). It is assumed that this device uses these dissipated energy as input power to run without any other visible input power source. The since 20 years in Switzerland existing prototype (Fig. 1), is assumed to be able to utilize a ...
Circuit Characteristics
... OUTPUT CONFIGURATION. The output circuitry of LSTTL has several features not found in conventional TTL. A few of these features are discussed below. Referring to Figures 2-1a, b, the base of the pull-down output transistor Q5 is returned to ground through Q3 and a pair of resistors instead of throug ...
... OUTPUT CONFIGURATION. The output circuitry of LSTTL has several features not found in conventional TTL. A few of these features are discussed below. Referring to Figures 2-1a, b, the base of the pull-down output transistor Q5 is returned to ground through Q3 and a pair of resistors instead of throug ...
TSM9634F - Silicon Labs
... 4) Circuit Efficiency and Power Dissipation IR losses in RSENSE can be large especially at high load currents. It is important to select the smallest, usable RSENSE value to minimize power dissipation and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate signi ...
... 4) Circuit Efficiency and Power Dissipation IR losses in RSENSE can be large especially at high load currents. It is important to select the smallest, usable RSENSE value to minimize power dissipation and to keep the physical size of RSENSE small. If the external RSENSE is allowed to dissipate signi ...
Specification Status: RELEASED PolyZen GENERAL DESCRIPTION
... PolyZen Zener diode was selected due to its relatively flat voltage vs current response. This helps improve output voltage clamping, even when input voltage is high and diode currents are large. An advanced feature of the PolyZen devices is that the Zener diode is thermally coupled to a resistively ...
... PolyZen Zener diode was selected due to its relatively flat voltage vs current response. This helps improve output voltage clamping, even when input voltage is high and diode currents are large. An advanced feature of the PolyZen devices is that the Zener diode is thermally coupled to a resistively ...
DMOS dual full bridge driver with PWM current controller
... RDS(on) = 0.73 Ω (typical value @ 25 °C), with intrinsic fast freewheeling diode. Cross conduction protection is achieved using a dead time (td = 1 µs typical) between the switch off and switch on of two power MOS in one leg of a bridge. Using N-channel power MOS for the upper transistors in the bri ...
... RDS(on) = 0.73 Ω (typical value @ 25 °C), with intrinsic fast freewheeling diode. Cross conduction protection is achieved using a dead time (td = 1 µs typical) between the switch off and switch on of two power MOS in one leg of a bridge. Using N-channel power MOS for the upper transistors in the bri ...
Input c/cs cct (transistor DC parameter)
... and currents, e.g.; the input voltage is regarded as positive when terminal (1) is more positive than terminal (2), and the output current is regarded as positive when it flows into the output terminal. In a similar way transistor may be represented as a box, and mathematical relationship found betw ...
... and currents, e.g.; the input voltage is regarded as positive when terminal (1) is more positive than terminal (2), and the output current is regarded as positive when it flows into the output terminal. In a similar way transistor may be represented as a box, and mathematical relationship found betw ...
CW47 Product Brief
... CW25 GPS receiver, DC/DC converter, RS232 and 2.048 Mbps G.703 E1 signal output and an active GPS antenna — all housed in a small waterproof enclosure. ...
... CW25 GPS receiver, DC/DC converter, RS232 and 2.048 Mbps G.703 E1 signal output and an active GPS antenna — all housed in a small waterproof enclosure. ...
Zener Diode Voltage Regulators
... region and there is a maximum Zener current, IZmax, at which the power dissipation drives the junction temperature to the maximum allowed (typically in the 125 to 150 C range). Beyond that current and the diode can be damaged or destroyed. There is no specific value for IZmin although it is typicall ...
... region and there is a maximum Zener current, IZmax, at which the power dissipation drives the junction temperature to the maximum allowed (typically in the 125 to 150 C range). Beyond that current and the diode can be damaged or destroyed. There is no specific value for IZmin although it is typicall ...
OP400
... not sacrificed with the OP400 to obtain the space and cost savings offered by quad amplifiers. The OP400 features an extremely low input offset voltage of less than 150 μV with a drift of less than 1.2 μV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP400 is more th ...
... not sacrificed with the OP400 to obtain the space and cost savings offered by quad amplifiers. The OP400 features an extremely low input offset voltage of less than 150 μV with a drift of less than 1.2 μV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP400 is more th ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)