IGBT or MOSFET: Choose Wisely
... depending on operating conditions. How does a designer select the right device for his application? The best approach is to understand the relative performance of each device. And know that if it looks too good to be true, it probably is. Some simple things to keep in mind: Test data, supplier claim ...
... depending on operating conditions. How does a designer select the right device for his application? The best approach is to understand the relative performance of each device. And know that if it looks too good to be true, it probably is. Some simple things to keep in mind: Test data, supplier claim ...
MAX212 +3V-Powered, Low-Power, True RS-232 Transceiver ________________General Description
... transmitters, and receivers. The power-supply section converts the supplied 3V to about ±6.5V, to provide the voltages necessary for the drivers to meet true RS-232 levels. External components are small and inexpensive. The transmitters and receivers are guaranteed to operate at data rates of 120kbp ...
... transmitters, and receivers. The power-supply section converts the supplied 3V to about ±6.5V, to provide the voltages necessary for the drivers to meet true RS-232 levels. External components are small and inexpensive. The transmitters and receivers are guaranteed to operate at data rates of 120kbp ...
STL23NM60ND
... 1. The value is rated according to Rthj-case 2. Pulse width limited by safe operating area 3. When mounted on FR-4 board of inch², 2oz Cu 4. ISD ≤ 19.5 A, di/dt ≤ 400 A/µs, VPeak < V(BR)DSS ...
... 1. The value is rated according to Rthj-case 2. Pulse width limited by safe operating area 3. When mounted on FR-4 board of inch², 2oz Cu 4. ISD ≤ 19.5 A, di/dt ≤ 400 A/µs, VPeak < V(BR)DSS ...
LTC1069-1 - Low Power, 8th Order Progressive Elliptic, Lowpass Filter
... single or dual supply operation, an analog ground plane surrounding the package is recommended. The analog ground plane should be connected to any digital ground at a single point. For dual supply operation Pin 1 should be connected to the analog ground plane. For single supply operation Pin 1 shoul ...
... single or dual supply operation, an analog ground plane surrounding the package is recommended. The analog ground plane should be connected to any digital ground at a single point. For dual supply operation Pin 1 should be connected to the analog ground plane. For single supply operation Pin 1 shoul ...
Johnson Noise and Shot Noise: The Boltzmann Constant, Absolute
... had changed from day to day. In Johnson noise analysis, the integral over the square of the gain curve over frequency is weighted by a term proportional to f −2 for large f . This means that the gain curve does not have to approach zero as long as it does not grow faster than f 2 . However, for cons ...
... had changed from day to day. In Johnson noise analysis, the integral over the square of the gain curve over frequency is weighted by a term proportional to f −2 for large f . This means that the gain curve does not have to approach zero as long as it does not grow faster than f 2 . However, for cons ...
gate solved paper - ee
... A half-controlled single-phase bridge rectifier is supplying an R-L load. It is operated at a firing angle a and the load current is continuous. The fraction of cycle that the freewheeling diode conducts is (A) 1/2 (B) (1 - a/p) (C) a/2p (D) a/p ...
... A half-controlled single-phase bridge rectifier is supplying an R-L load. It is operated at a firing angle a and the load current is continuous. The fraction of cycle that the freewheeling diode conducts is (A) 1/2 (B) (1 - a/p) (C) a/2p (D) a/p ...
LVDS Receiver Input Thresholds
... Low Voltage Differential Signaling (LVDS) is a method used to transmit and receive hundreds of megabits per second over differential media using a low voltage signal swing (~350mV). LVDS communications are preformed by a driver and a receiver. The LVDS receiver, see Figure 1, senses a differential v ...
... Low Voltage Differential Signaling (LVDS) is a method used to transmit and receive hundreds of megabits per second over differential media using a low voltage signal swing (~350mV). LVDS communications are preformed by a driver and a receiver. The LVDS receiver, see Figure 1, senses a differential v ...
INTRODUCTION. -
... motor can work in explosive environments because no sparks are produced. Taking into account all the advantages outlined above, induction motors must be considered the perfect electrical to mechanical energy converter. However, mechanical energy is more than often required at variable speeds, where ...
... motor can work in explosive environments because no sparks are produced. Taking into account all the advantages outlined above, induction motors must be considered the perfect electrical to mechanical energy converter. However, mechanical energy is more than often required at variable speeds, where ...
DS90LV110T 1 to 10 LVDS Data/Clock Distributor DS90LV110T FEATURES DESCRIPTION
... DS90LV110T 1 to 10 LVDS Data/Clock Distributor Check for Samples: DS90LV110T ...
... DS90LV110T 1 to 10 LVDS Data/Clock Distributor Check for Samples: DS90LV110T ...
MAX8884Y/MAX8884Z 700mA DC-DC Step-Down Converters General Description
... 2/4MHz hysteretic-PWM control scheme allows for tiny external components and reduces no-load operating current to 50µA. Two low quiescent current, low-noise LDOs operate down to 2.7V supply voltage. Two switching frequency options are available—MAX8884Y (2MHz) and MAX8884Z (4MHz)—allowing optimizati ...
... 2/4MHz hysteretic-PWM control scheme allows for tiny external components and reduces no-load operating current to 50µA. Two low quiescent current, low-noise LDOs operate down to 2.7V supply voltage. Two switching frequency options are available—MAX8884Y (2MHz) and MAX8884Z (4MHz)—allowing optimizati ...
Closed Form Solution for Minimum Conduction Loss
... The modulation schemes specified with (2) facilitate the highest possible degree of freedom regarding the search toward an optimal modulation scheme, provided that a constant switching frequency is used. As a consequence, analytical investigations, e.g., the calculation of D1 and D2 with respect to ...
... The modulation schemes specified with (2) facilitate the highest possible degree of freedom regarding the search toward an optimal modulation scheme, provided that a constant switching frequency is used. As a consequence, analytical investigations, e.g., the calculation of D1 and D2 with respect to ...
power_point1..metal_detector..final1_
... And to turn the coil current off . During the “on” time ,current flowing through the coil creates a magnetic field around the coil ...
... And to turn the coil current off . During the “on” time ,current flowing through the coil creates a magnetic field around the coil ...
ILUMEN PID SOLUTION
... ideal solution for medium and large scale projects. The Ilumen PID Box Mini can have integrated GPRS communication (to www.myilumen.be) so we can control the solution without going on site. ...
... ideal solution for medium and large scale projects. The Ilumen PID Box Mini can have integrated GPRS communication (to www.myilumen.be) so we can control the solution without going on site. ...
BU97931FV-LB
... This device is controlled by a 3-wire signal (CSB, SCL, and SD). First, Interface counter is initialized with CSB=“H". Setting CSB=”L” enables SD and SCL inputs. The protocol of 3-SPI transfer is as follows. Each command starts with Command or Data judgment bit (D/C) as MSB data, followed by data D6 ...
... This device is controlled by a 3-wire signal (CSB, SCL, and SD). First, Interface counter is initialized with CSB=“H". Setting CSB=”L” enables SD and SCL inputs. The protocol of 3-SPI transfer is as follows. Each command starts with Command or Data judgment bit (D/C) as MSB data, followed by data D6 ...
Monotonic, Inrush Current Limited Start-Up for
... start-up response. If the regulator starts up into a large capacitive or small resistive load, the inrush current is large, approaching the regulator’s current limit in some cases. This application report discusses two methods of slew rate limiting a linear regulator’s output voltage rise time and, ...
... start-up response. If the regulator starts up into a large capacitive or small resistive load, the inrush current is large, approaching the regulator’s current limit in some cases. This application report discusses two methods of slew rate limiting a linear regulator’s output voltage rise time and, ...
MAX6819/MAX6820 SOT23 Power-Supply Sequencers General Description Features
... require one power supply to rise to the proper operating voltage before another supply is applied. Improper sequencing can lead to chip latchup, incorrect device initiation, or long-term reliability degradation. If the various supply voltages are not locally generated (coming from a main system bus, ...
... require one power supply to rise to the proper operating voltage before another supply is applied. Improper sequencing can lead to chip latchup, incorrect device initiation, or long-term reliability degradation. If the various supply voltages are not locally generated (coming from a main system bus, ...
Inline Turbine Meters FTB-700 Series
... reach the desired digits. (Note: Using the flow alarm function disables the pulse output function.) Set 20 mA. Press the SET key to advance to SET 20, to set the flow rate, in volume units per time unit, at which 20 mA is desired. Use the up arrow key to reach your desired value. Then press the left ...
... reach the desired digits. (Note: Using the flow alarm function disables the pulse output function.) Set 20 mA. Press the SET key to advance to SET 20, to set the flow rate, in volume units per time unit, at which 20 mA is desired. Use the up arrow key to reach your desired value. Then press the left ...
MAX1725/MAX1726 12V, Ultra-Low I , Low-Dropout Linear Regulators
... For fixed 1.8V, 2.5V, 3.3V, or 5V output voltages, use the MAX1726. The MAX1725 features an adjustable output voltage from 1.5V to 5V, using two external resistors connected as a voltage-divider to FB (Figure 1). The MAX1725 is optimized for operation with R2 = 1.2MΩ. The output voltage is set by th ...
... For fixed 1.8V, 2.5V, 3.3V, or 5V output voltages, use the MAX1726. The MAX1725 features an adjustable output voltage from 1.5V to 5V, using two external resistors connected as a voltage-divider to FB (Figure 1). The MAX1725 is optimized for operation with R2 = 1.2MΩ. The output voltage is set by th ...
SN754410 Quadruple Half-H Driver (Rev. C)
... pairs with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. When an enable input is high, the associated drivers are enabled and their outputs become active and in phase with their inputs. When the enable input is low, those drivers are disabled and their outputs are off and in ...
... pairs with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. When an enable input is high, the associated drivers are enabled and their outputs become active and in phase with their inputs. When the enable input is low, those drivers are disabled and their outputs are off and in ...
Digital devices based on lambda diodes
... coming from Es to 0V. In a similar way [3,4], it is possible to design the logical inverter, (see fig. 3.4). Here the both shoulders of the inverter is a lambda-transistors of a first type (fig. 3.1.). This lambda-transistors have a complementary conductivity of forming FETs. When input level voltag ...
... coming from Es to 0V. In a similar way [3,4], it is possible to design the logical inverter, (see fig. 3.4). Here the both shoulders of the inverter is a lambda-transistors of a first type (fig. 3.1.). This lambda-transistors have a complementary conductivity of forming FETs. When input level voltag ...
RF MEMS Charge Pump
... The charge pump is a high impedance device which is sensitive to leakage paths between leads that can be caused by flux residue. For this reason, the solder mask should be open only where solder will actually be applied when mounting the TT6820QFN. It is essential that no conductive flux residue be ...
... The charge pump is a high impedance device which is sensitive to leakage paths between leads that can be caused by flux residue. For this reason, the solder mask should be open only where solder will actually be applied when mounting the TT6820QFN. It is essential that no conductive flux residue be ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.