File - Electrical Technology
... Operation: The biasing supply VBE forward biases emitter base (EB) junction and VCB reverse biases the collector base (CB) junction. The input signal is connected the between the emitter and base terminals. The rise and falls in input signal affects the emitter base biasing voltage. As the signal fa ...
... Operation: The biasing supply VBE forward biases emitter base (EB) junction and VCB reverse biases the collector base (CB) junction. The input signal is connected the between the emitter and base terminals. The rise and falls in input signal affects the emitter base biasing voltage. As the signal fa ...
A review of voltage dip mitigation techniques with distributed
... duration and voltage magnitude. Short duration r.m.s variations are divided into the instantaneous, momentary, and temporary time periods, while the voltage magnitude of the disturbance characterizes it as a dip, swell, or interruption. A long-duration r.m.s voltage variation is defined to last long ...
... duration and voltage magnitude. Short duration r.m.s variations are divided into the instantaneous, momentary, and temporary time periods, while the voltage magnitude of the disturbance characterizes it as a dip, swell, or interruption. A long-duration r.m.s voltage variation is defined to last long ...
Noise and Relative Photon Detection Efficiency
... Compared to photodiodes, APDs use free negative charged carriers, which gain enough energy in the accelerating field E to create electron-hole pairs themselves. This process is visualized in figure 3.2. Reverse-biased diodes can achieve amplification of the signal up to 50 − 200 compared to regular ...
... Compared to photodiodes, APDs use free negative charged carriers, which gain enough energy in the accelerating field E to create electron-hole pairs themselves. This process is visualized in figure 3.2. Reverse-biased diodes can achieve amplification of the signal up to 50 − 200 compared to regular ...
What the Designer Should Know
... regulators is about 0.5V. For this reason, this type of regulator is called Low Drop Out PNP transistor (LDO). This enables it to operate during a drop in battery voltage (e.g. cranking). PNP regulators are protected against reverse polarity faults. NMOS linear regulators D S NMOS pass transistors p ...
... regulators is about 0.5V. For this reason, this type of regulator is called Low Drop Out PNP transistor (LDO). This enables it to operate during a drop in battery voltage (e.g. cranking). PNP regulators are protected against reverse polarity faults. NMOS linear regulators D S NMOS pass transistors p ...
SN65C3221-Q1 数据资料 dataSheet 下载
... protection pin to pin (serial-port connection pins, including GND). This device provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. This ...
... protection pin to pin (serial-port connection pins, including GND). This device provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. This ...
RF2053 - Qorvo
... external VCO to produce a low-phase noise LO signal with a very fine frequency resolution. The VCO output frequency can be divided by 1, 2, or 4 in the LO divider, whose output is buffered and drives the built-in RF mixer which converts the signal into the required frequency band. The mixer bias cur ...
... external VCO to produce a low-phase noise LO signal with a very fine frequency resolution. The VCO output frequency can be divided by 1, 2, or 4 in the LO divider, whose output is buffered and drives the built-in RF mixer which converts the signal into the required frequency band. The mixer bias cur ...
Transformers and Power Flow
... represents the energy that changes into heat during each cycle (joules per cubic meters). Iron losses are represented as resistance (Rm) in parallel to the primary terminals of the transformer. Syed A Rizvi ...
... represents the energy that changes into heat during each cycle (joules per cubic meters). Iron losses are represented as resistance (Rm) in parallel to the primary terminals of the transformer. Syed A Rizvi ...
X9C102, X9C103, X9C104, X9C503 Digitally Controlled Potentiometer (XDCP™)
... There are three sections of the X9Cxxx: the input control, counter and decode section; the nonvolatile memory; and the resistor array. The input control section operates just like an up/down counter. The output of this counter is decoded to turn on a single electronic switch connecting a point on th ...
... There are three sections of the X9Cxxx: the input control, counter and decode section; the nonvolatile memory; and the resistor array. The input control section operates just like an up/down counter. The output of this counter is decoded to turn on a single electronic switch connecting a point on th ...
Complete PDF Edition (1,270 KB)
... shown in Fig. 2. The AML chip implements a traction motor drive control processor and operation control logic in 300,000 gates. The device generates control signals for the inverter and the transistor converter. Fig. 3 shows a block diagram of the control system and AML architecture. The AML chip ca ...
... shown in Fig. 2. The AML chip implements a traction motor drive control processor and operation control logic in 300,000 gates. The device generates control signals for the inverter and the transistor converter. Fig. 3 shows a block diagram of the control system and AML architecture. The AML chip ca ...
RF9802 QUAD BAND GPRS/LINEAR EDGE TRANSMIT MODULE
... module builds upon RFMD’s successful RF716x family, incorporating full EDGE capability while maintaining a common footprint for ease of phone platform design. The RF9802 continues to build upon RFMD’s leading patented PowerStar® Architecture to include such features as Power Flattening, VRAMP Filter ...
... module builds upon RFMD’s successful RF716x family, incorporating full EDGE capability while maintaining a common footprint for ease of phone platform design. The RF9802 continues to build upon RFMD’s leading patented PowerStar® Architecture to include such features as Power Flattening, VRAMP Filter ...
Tender for COEWET-Tech II Rev 201.
... which bid is submitted from an accredited calibration laboratory. ...
... which bid is submitted from an accredited calibration laboratory. ...
S21 Dimmer Strip - Strand Lighting
... 1.) The dimmers shall use IGBTs (Insulated Gate Bipolar Transistors) to regulate and control load voltage. Dimmers using hard-switching semiconductor devices, such as SCRs, triacs or other thyristors, shall not be acceptable. The dimmers shall not use filter chokes to control the rate of rise in the ...
... 1.) The dimmers shall use IGBTs (Insulated Gate Bipolar Transistors) to regulate and control load voltage. Dimmers using hard-switching semiconductor devices, such as SCRs, triacs or other thyristors, shall not be acceptable. The dimmers shall not use filter chokes to control the rate of rise in the ...
BCX51/ 52/ 53 Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
applications information for using a "pic" microcontroller in
... although a 1 kword version (..621..) may be necessary if more complex requirements are requested. These microcontrollers include two analogue comparators on-chip, and thus eliminate many of the external components needed in the original DiSEqC™ Slave application. The ‘x’ in the above type number ind ...
... although a 1 kword version (..621..) may be necessary if more complex requirements are requested. These microcontrollers include two analogue comparators on-chip, and thus eliminate many of the external components needed in the original DiSEqC™ Slave application. The ‘x’ in the above type number ind ...
MAX3233E/MAX3235E ±15kV ESD-Protected, 1µA, 250kbps, 3.3V/5V, Dual RS-232 Transceivers with Internal Capacitors
... convert CMOS-logic levels to 5.0V EIA/TIA-232 levels. The devices guarantee a 250kbps data rate with worstcase loads of 3kΩ in parallel with 1000pF, providing compatibility with PC-to-PC communication software (such as LapLink™). Transmitters can be paralleled to drive multiple receivers. Figure 1 s ...
... convert CMOS-logic levels to 5.0V EIA/TIA-232 levels. The devices guarantee a 250kbps data rate with worstcase loads of 3kΩ in parallel with 1000pF, providing compatibility with PC-to-PC communication software (such as LapLink™). Transmitters can be paralleled to drive multiple receivers. Figure 1 s ...
LT5557 - 400MHz to 3.8GHz 3.3V Active Downconverting Mixer.
... RF (Pin 3): Single-Ended Input for the RF Signal. This pin is internally connected to the primary side of the RF input transformer, which has low DC resistance to ground. If the RF source is not DC blocked, then a series blocking capacitor must be used. The RF input is internally matched from 1.6GHz ...
... RF (Pin 3): Single-Ended Input for the RF Signal. This pin is internally connected to the primary side of the RF input transformer, which has low DC resistance to ground. If the RF source is not DC blocked, then a series blocking capacitor must be used. The RF input is internally matched from 1.6GHz ...
TSC2003 数据资料 dataSheet 下载
... internal clock. Operation is maintained from a single supply of 2.7V to 5.25V. The internal reference can be overdriven with an external, low-impedance source between 2V and +VDD. The value of the reference voltage directly sets the input range of the converter. ...
... internal clock. Operation is maintained from a single supply of 2.7V to 5.25V. The internal reference can be overdriven with an external, low-impedance source between 2V and +VDD. The value of the reference voltage directly sets the input range of the converter. ...
ADM690 数据手册DataSheet 下载
... The ADM690/ADM691/ADM694/ADM695 operates with battery voltages from 2.0 V to 4.25 V and the ADM692/ADM693 operates with battery voltages from 2.0 V to 4.0 V. High value capacitors, either standard electrolytic or the farad size double layer capacitors, can also be used for short-term memory back up. ...
... The ADM690/ADM691/ADM694/ADM695 operates with battery voltages from 2.0 V to 4.25 V and the ADM692/ADM693 operates with battery voltages from 2.0 V to 4.0 V. High value capacitors, either standard electrolytic or the farad size double layer capacitors, can also be used for short-term memory back up. ...
Device circuit breakers
... Reliable protection in the event of harmful overload and short-circuit currents System failures can be caused by various factors. A permanent overload, for example, can damage the load and lead to the downtime of the system or a system part. Provide selective fuse protection for the control circuits ...
... Reliable protection in the event of harmful overload and short-circuit currents System failures can be caused by various factors. A permanent overload, for example, can damage the load and lead to the downtime of the system or a system part. Provide selective fuse protection for the control circuits ...
User Manual “The Grail SB” Fully Balanced Phonograph Preamplifier
... Impedance matching for MM and MI systems connected to the “MM” input These lines are dedicated to the skilled users only – if in doubt, always consult your dealer! What about the impedance matching of MM or MI systems? Normally, everything should be fine. “The Grail's” input impedance is 47Kilo-Ohms ...
... Impedance matching for MM and MI systems connected to the “MM” input These lines are dedicated to the skilled users only – if in doubt, always consult your dealer! What about the impedance matching of MM or MI systems? Normally, everything should be fine. “The Grail's” input impedance is 47Kilo-Ohms ...
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.