Mobile Electric-Discharge Blasting Unit for Splitting off and
... tunnels and so on. The numerous studies have shown conclusive advantages of electric-discharge technology, such as absence of toxic substances, destructive acoustic and seismic shock waves, an ability to adjust transferred energy to destroyed object. The amount of stored energy is one of the main pa ...
... tunnels and so on. The numerous studies have shown conclusive advantages of electric-discharge technology, such as absence of toxic substances, destructive acoustic and seismic shock waves, an ability to adjust transferred energy to destroyed object. The amount of stored energy is one of the main pa ...
SDC1-120-12-75 - IOTA Engineering
... The IOTA SDC1-120-12-75 delivers solid conversion of 120 Vac voltage to 13.6 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-12-75 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
... The IOTA SDC1-120-12-75 delivers solid conversion of 120 Vac voltage to 13.6 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-12-75 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
SDC1-120-12-30 - IOTA Engineering
... The IOTA SDC1-120-12-30 delivers solid conversion of 120 Vac voltage to 13.4 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-12-30 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
... The IOTA SDC1-120-12-30 delivers solid conversion of 120 Vac voltage to 13.4 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-12-30 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
WISI OH 50 A - WISI Online
... expandable; the WISI COMPACT HEADEND System OH combines all the advantages of an innovative and affordable headend. WISI Compact Headend OH is easy to configure. With up to 14 module slots it offers channel processing for 14 analogue or 28 digital channels in a 3 HU 19“ rack chassis. WISI Compact He ...
... expandable; the WISI COMPACT HEADEND System OH combines all the advantages of an innovative and affordable headend. WISI Compact Headend OH is easy to configure. With up to 14 module slots it offers channel processing for 14 analogue or 28 digital channels in a 3 HU 19“ rack chassis. WISI Compact He ...
Analog-to-Digital Converters
... There are few ways of designing analog-to-digital converters using an integrator. We will discuss one of them: the single-slope ADC. ...
... There are few ways of designing analog-to-digital converters using an integrator. We will discuss one of them: the single-slope ADC. ...
MICREL DC to DC Converters
... of L and C The 2Mhz switching frequency keeps the L and C Low. To Reduce the L and C to Only 2.2uH and 1uF output Capacitor, a very high loop bandwidth was required. Traditionally a tantalum output capacitor is required to add an extra zero into the loop to help stabilize. The MIC2202 uses a 1 ...
... of L and C The 2Mhz switching frequency keeps the L and C Low. To Reduce the L and C to Only 2.2uH and 1uF output Capacitor, a very high loop bandwidth was required. Traditionally a tantalum output capacitor is required to add an extra zero into the loop to help stabilize. The MIC2202 uses a 1 ...
LM148 LM149 Series Quad 741 Op Amp
... Note 3: These specifications apply for VS e g 15V and over the absolute maximum operating temperature range (TL s TA s TH) unless otherwise noted. Note 4: Refer to RETS 148X for LM148 military specifications and refer to RETS 149X for LM149 military specifications. Note 5: Human body model, 1.5 kX i ...
... Note 3: These specifications apply for VS e g 15V and over the absolute maximum operating temperature range (TL s TA s TH) unless otherwise noted. Note 4: Refer to RETS 148X for LM148 military specifications and refer to RETS 149X for LM149 military specifications. Note 5: Human body model, 1.5 kX i ...
Industrial Controls
... Direct current (DC) motors are used in industrial applications that require variable speed control, high torque, or both. Speed of most DC motors can be controlled smoothly and easily form zero to full speed. They are used in many acceleration and deceleration applications. ...
... Direct current (DC) motors are used in industrial applications that require variable speed control, high torque, or both. Speed of most DC motors can be controlled smoothly and easily form zero to full speed. They are used in many acceleration and deceleration applications. ...
Power Supplies for Contrast Adjustment
... wave. The output can be either positive or negative. These simple circuits can be used to generate the bias voltage for character type displays and small graphics types. They have the advantage of being very low in cost but are not regulated and cannot deliver much current. They are also sensitive t ...
... wave. The output can be either positive or negative. These simple circuits can be used to generate the bias voltage for character type displays and small graphics types. They have the advantage of being very low in cost but are not regulated and cannot deliver much current. They are also sensitive t ...
Two Stage Transistor Audio Amplifier
... In Class 'B' the transistor is biased at the cut-off point. This results in an output signal that consists of just one half of the input cycles. The other half cycle is cut off. The collector current only flows for 50% of input cycle. A single transistor used in this manner would give a distorted ou ...
... In Class 'B' the transistor is biased at the cut-off point. This results in an output signal that consists of just one half of the input cycles. The other half cycle is cut off. The collector current only flows for 50% of input cycle. A single transistor used in this manner would give a distorted ou ...
SDC1-120-24-40 - IOTA Engineering
... The IOTA SDC1-120-24-40 delivers solid conversion of 120 Vac voltage to 27.2 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-24-40 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
... The IOTA SDC1-120-24-40 delivers solid conversion of 120 Vac voltage to 27.2 Vdc for both power conversion and battery charging applications. As a power converter, the SDC1-120-24-40 tightly controls and regulates the DC output, enabling the user to safely operate any appropriate nominal DC load up ...
Iris Power PDAlert Bantam PD Detection During Short Risetime Voltage Surges
... • Impulse voltage input and ...
... • Impulse voltage input and ...
FITtape_hardware_description
... via Bluetooth or USB. In order to communicate with other modules, it uses the SPI1 ports and chip selects between SPI devices. The two devices running off SPI are the LCD screen and the Bluetooth module. All the other pins are GPIO pins that read input of the encoder, user interface, or output contr ...
... via Bluetooth or USB. In order to communicate with other modules, it uses the SPI1 ports and chip selects between SPI devices. The two devices running off SPI are the LCD screen and the Bluetooth module. All the other pins are GPIO pins that read input of the encoder, user interface, or output contr ...
Alternating Current (AC) vs. Direct Current (DC)
... Notice that, as we predicted, the voltage rise up to 170V and down to -170V periodically. Additionally, 60 cycles of the sine wave occurs every second. If we were to measure the voltage in our outlets with an oscilloscope, this is what we would see (WARNING: do not attempt to measure the voltage in ...
... Notice that, as we predicted, the voltage rise up to 170V and down to -170V periodically. Additionally, 60 cycles of the sine wave occurs every second. If we were to measure the voltage in our outlets with an oscilloscope, this is what we would see (WARNING: do not attempt to measure the voltage in ...
256 Directional Power Relay www.GEindustrial.com/pm Simplify the
... The low forward power element is active only when the generator is online and will be blocked until the generator is brought online, for a period of time defined by the setpoint. The pickup level should be set lower than expected generator loading during normal operations. If the fuse failure functi ...
... The low forward power element is active only when the generator is online and will be blocked until the generator is brought online, for a period of time defined by the setpoint. The pickup level should be set lower than expected generator loading during normal operations. If the fuse failure functi ...
Digitally Controlled Pulse Width Modulator for On
... During the first phase, capacitor C1 is charged through transistor P1 . In the second phase, transistors (i.e., switches) N2 and N3 are turned on to allow charge sharing between C1 and C2 . During the last phase, C1 is discharged through N1 . The charge time of C1 depends upon the duty cycle of the ...
... During the first phase, capacitor C1 is charged through transistor P1 . In the second phase, transistors (i.e., switches) N2 and N3 are turned on to allow charge sharing between C1 and C2 . During the last phase, C1 is discharged through N1 . The charge time of C1 depends upon the duty cycle of the ...
DN55 - New Low Cost Differential Input Video
... only 40 degrees, so when operating at unity gain, care must be taken to avoid instability. ...
... only 40 degrees, so when operating at unity gain, care must be taken to avoid instability. ...
DV2-3G Metro Power Solutions (UL Listed)
... adjustable in software and stored in transferable configuration files for repeatable one-step system set-up. The advanced SC200 system controller offers high-level communications capability for real time information, including an Ethernet port for connecting directly to the Internet. It also has bui ...
... adjustable in software and stored in transferable configuration files for repeatable one-step system set-up. The advanced SC200 system controller offers high-level communications capability for real time information, including an Ethernet port for connecting directly to the Internet. It also has bui ...
Analogue Digital Conversion
... generated by the D-A converter is greater than the analogue input At this point in time the output of analogue input the comparator goes to a logic 1, which notifies the control logic the ...
... generated by the D-A converter is greater than the analogue input At this point in time the output of analogue input the comparator goes to a logic 1, which notifies the control logic the ...
Control of the Shunt Active Power Filter under Non
... speed drives are some examples of these non-linear loads. These non-linear power electronic loads draw non-sinusoidal currents from ac mains and cause a type of voltage and current distortion called harmonics [1]. These harmonics cause various problems in power systems and in consumer products, such ...
... speed drives are some examples of these non-linear loads. These non-linear power electronic loads draw non-sinusoidal currents from ac mains and cause a type of voltage and current distortion called harmonics [1]. These harmonics cause various problems in power systems and in consumer products, such ...
Massachusetts institute of Technology
... Spring 2006 Homework 2 Due 2/22/06 Problem 1. A voltage divider is formed with resistors R1 and R2. A voltmeter is used to measure the voltage across resistor R2. The following table gives the values for the measured voltage Vo as a function of resistors R1 and R2 and the ideal voltage source VB. ...
... Spring 2006 Homework 2 Due 2/22/06 Problem 1. A voltage divider is formed with resistors R1 and R2. A voltmeter is used to measure the voltage across resistor R2. The following table gives the values for the measured voltage Vo as a function of resistors R1 and R2 and the ideal voltage source VB. ...
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.