2PCA-1000 - Terraplus
... pulses up the cable line for the first frequency, and negative pulses for the second frequency. An anticoincidence algorithm insures that a positive and negative pulse will not occur simultaneously. The microprocessor also controls the motor that opens and closes the caliper mechanism. The mechanism ...
... pulses up the cable line for the first frequency, and negative pulses for the second frequency. An anticoincidence algorithm insures that a positive and negative pulse will not occur simultaneously. The microprocessor also controls the motor that opens and closes the caliper mechanism. The mechanism ...
5.6 Audio Systems Word Document | GCE AS/A
... One straight line is horizontal, and shows the gain due to the feedback and input resistors, as in the inverting amplifier itself. In other words, for this section of the frequency response: Voltage gain = -RF / RIN The other straight line has a slope of 450. The exact nature depends on which fi ...
... One straight line is horizontal, and shows the gain due to the feedback and input resistors, as in the inverting amplifier itself. In other words, for this section of the frequency response: Voltage gain = -RF / RIN The other straight line has a slope of 450. The exact nature depends on which fi ...
LP3879 - Texas Instruments
... can be used to calculate a value for a term referred to as ESR. However, since the DF formula is usually at a much lower frequency than the range listed above, it will give an unrealistically high value. If good quality X5R or X7R ceramic capacitors are used, the actual ESR in the 50 kHz to 200 kHz ...
... can be used to calculate a value for a term referred to as ESR. However, since the DF formula is usually at a much lower frequency than the range listed above, it will give an unrealistically high value. If good quality X5R or X7R ceramic capacitors are used, the actual ESR in the 50 kHz to 200 kHz ...
LTC3600 - 15V, 1.5A Synchronous Rail-to-Rail
... an external capacitor from ISET to ground will soft start the output voltage and reduce current inrush when turning on. VOUT can also be programmed by driving ISET directly with an external supply from 0 to VIN, in which case the external supply would be sinking the provided 50µA. Do not drive VISET ...
... an external capacitor from ISET to ground will soft start the output voltage and reduce current inrush when turning on. VOUT can also be programmed by driving ISET directly with an external supply from 0 to VIN, in which case the external supply would be sinking the provided 50µA. Do not drive VISET ...
dimming facts for led products
... • Some manufacturers do not follow the IES standard. This leads to LED drivers and lamps that claim 0-10V compatibility but drop out or pop on, or dim backwards with the lowest output at the top and the highest output at the bottom. • The control signal is a small analog voltage and long wire runs c ...
... • Some manufacturers do not follow the IES standard. This leads to LED drivers and lamps that claim 0-10V compatibility but drop out or pop on, or dim backwards with the lowest output at the top and the highest output at the bottom. • The control signal is a small analog voltage and long wire runs c ...
TLE7185-1E - Infineon Technologies
... When the INH pin is set to low, the driver will be set to sleep mode. The INH pin switches off the complete supply structure of the device and leads finally to an under voltage shut down of the complete driver. Enabling the device with the INH pin means to switch on the supply structure. The device ...
... When the INH pin is set to low, the driver will be set to sleep mode. The INH pin switches off the complete supply structure of the device and leads finally to an under voltage shut down of the complete driver. Enabling the device with the INH pin means to switch on the supply structure. The device ...
Bipolar Transistor 100V, 2A VCE(sat);0.6 max. PNP Single TP
... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
ee2353 high voltage engineering
... • A switching surge is a short duration transient voltage produced in the system due to a sudden opening or closing of a switch or c.b or due to an arcing at a fault in the system. • Impulse generator circuit is modified to give longer duration wave shape,100/1000 μs,R1 is increased to very high val ...
... • A switching surge is a short duration transient voltage produced in the system due to a sudden opening or closing of a switch or c.b or due to an arcing at a fault in the system. • Impulse generator circuit is modified to give longer duration wave shape,100/1000 μs,R1 is increased to very high val ...
A Variable Duty Factor Beam Chopper for a 300 keV Injection
... design also has a limited requirement for pulse duration, which is in the range 500 ns to 6 ps[2]. The 300 keV beam chopper consists of three stages to convert a TTL timing signal, from the ISIS control system, to a 5 kV pulse. The first stage converts the TTL signal to 60 V; the second stage conver ...
... design also has a limited requirement for pulse duration, which is in the range 500 ns to 6 ps[2]. The 300 keV beam chopper consists of three stages to convert a TTL timing signal, from the ISIS control system, to a 5 kV pulse. The first stage converts the TTL signal to 60 V; the second stage conver ...
DS1181L 20MHz to 134MHz Spread-Spectrum Clock Modulator for LCD Panels General Description
... pin-selectable magnitude, allowing direct EMI control and optimization. In addition, through an enable pin the dithering can be enabled or disabled for easy comparison of system performance during EMI testing. This same input pin also allows the DS1181L output to be three-stated. By dithering the sy ...
... pin-selectable magnitude, allowing direct EMI control and optimization. In addition, through an enable pin the dithering can be enabled or disabled for easy comparison of system performance during EMI testing. This same input pin also allows the DS1181L output to be three-stated. By dithering the sy ...
Synthesis Techniques for Low-Power Hard Real-Time Systems on Variable Voltage Processors
... Yao, Demers and Shenker [31] have provided the optimal preemptive static scheduling algorithm for a set of independent tasks with arbitrary arrival times and deadlines. The algorithm is based on the concept of critical regions and the tasks in critical regions are scheduled by the earliest deadline ...
... Yao, Demers and Shenker [31] have provided the optimal preemptive static scheduling algorithm for a set of independent tasks with arbitrary arrival times and deadlines. The algorithm is based on the concept of critical regions and the tasks in critical regions are scheduled by the earliest deadline ...
Digital Electronics - Dr. Imtiaz Hussain
... strain gages, or pressure sensors, that provide a signal voltage or current that is derived from the process variable. Standard Analog Input signals: 4-20mA; 0-10V Analog outputs can be used to drive devices such as voltmeters, X-Y recorders, servomotor drives, and valves through the use of transduc ...
... strain gages, or pressure sensors, that provide a signal voltage or current that is derived from the process variable. Standard Analog Input signals: 4-20mA; 0-10V Analog outputs can be used to drive devices such as voltmeters, X-Y recorders, servomotor drives, and valves through the use of transduc ...
Experimental comparison of performance degradation from terahertz
... Our THz source (Virginia Diodes Inc.) is based on a frequencymultiplier-chain with about 1 mW output power when operated in a continuous wave (CW) mode. It consists of an amplifier driven at 2 W saturation power followed by four frequency doublers and one frequency tripler, all based on biased Schot ...
... Our THz source (Virginia Diodes Inc.) is based on a frequencymultiplier-chain with about 1 mW output power when operated in a continuous wave (CW) mode. It consists of an amplifier driven at 2 W saturation power followed by four frequency doublers and one frequency tripler, all based on biased Schot ...
BDTIC ™ Compact
... The 2EDL family contains devices, which control power devices like MOS-transistors or IGBTs with a maximum blocking voltage of +600V in half bridge configurations. Based on the used SOI-technology there is an excellent ruggedness on transient voltages. No parasitic thyristor structures are present i ...
... The 2EDL family contains devices, which control power devices like MOS-transistors or IGBTs with a maximum blocking voltage of +600V in half bridge configurations. Based on the used SOI-technology there is an excellent ruggedness on transient voltages. No parasitic thyristor structures are present i ...
Generator Loading, Harmonics Monitoring and
... Electronic or “non-linear” loads, such as variable frequency and dc motor drives, computers, and automation equipment, draw current from the power system that is not sinusoidal. The resulting non-linear current may be expressed as a series of sinusoidal waves with frequencies equal to integer multip ...
... Electronic or “non-linear” loads, such as variable frequency and dc motor drives, computers, and automation equipment, draw current from the power system that is not sinusoidal. The resulting non-linear current may be expressed as a series of sinusoidal waves with frequencies equal to integer multip ...
Product Data and Specifications-Specification Data for
... Both interface (keypad) systems offer "start-up wizards" for simpler applications requiring the minimum of parameter settings. Up to three monitoring values can be viewed simultaneously in all applications. The menu structure allows rapid movement throughout the parameter sets which include: basic; ...
... Both interface (keypad) systems offer "start-up wizards" for simpler applications requiring the minimum of parameter settings. Up to three monitoring values can be viewed simultaneously in all applications. The menu structure allows rapid movement throughout the parameter sets which include: basic; ...
Product Specification: ATV 12 Variable Frequency Drive for Pump
... Upon power-up, the AC Drive power converter shall automatically test for valid operation of memory, valid B. operation of precharge circuit, loss of communication, DC-to-DC power supply, and control C. The AC Drive power converter shall be protected against short circuits between output phases and a ...
... Upon power-up, the AC Drive power converter shall automatically test for valid operation of memory, valid B. operation of precharge circuit, loss of communication, DC-to-DC power supply, and control C. The AC Drive power converter shall be protected against short circuits between output phases and a ...
Power supplies and DC/DC converters
... modules with various output voltages offer a great variance on power supplies with up to 8 isolated output voltages and various signal options for primary and secondary. The 350 W units offer up to 6 outputs. The 700 W units offer up to 8 outputs. Additionally the NV-700 is able to deliver up to 960 ...
... modules with various output voltages offer a great variance on power supplies with up to 8 isolated output voltages and various signal options for primary and secondary. The 350 W units offer up to 6 outputs. The 700 W units offer up to 8 outputs. Additionally the NV-700 is able to deliver up to 960 ...
Performance Evaluation of HVDC Transmission system with
... Fig. 1 shows individual phase of a hybrid multilevel VSC with n cells per phase. It can generate 4n+1 voltage levels between converter terminal ‘Ca’ and supply midpoint ‘0’. As a result, with increase in number of H-bridge cells per phase, it gives near pure sinusoidal voltage as shown in Fig. 1[1], ...
... Fig. 1 shows individual phase of a hybrid multilevel VSC with n cells per phase. It can generate 4n+1 voltage levels between converter terminal ‘Ca’ and supply midpoint ‘0’. As a result, with increase in number of H-bridge cells per phase, it gives near pure sinusoidal voltage as shown in Fig. 1[1], ...
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.