Signal Conditioner
... Data to Data Communications – Allow different devices to communicate with each other ...
... Data to Data Communications – Allow different devices to communicate with each other ...
a AN-423 APPLICATION NOTE •
... the (internal) control amplifier and must not be externally altered. The RSET modification circuit, Figure 2, uses Q1 as a variable resistor and R2 as a fixed current limit resistor in case Q1 is allowed to turn on too much. C1 inhibits noise when Q1 is operated near cutoff. R1 lowers the input impe ...
... the (internal) control amplifier and must not be externally altered. The RSET modification circuit, Figure 2, uses Q1 as a variable resistor and R2 as a fixed current limit resistor in case Q1 is allowed to turn on too much. C1 inhibits noise when Q1 is operated near cutoff. R1 lowers the input impe ...
MicroPython Hardware: Analog I/O
... Pulse-width modulation (http://adafru.it/reK) (PWM) is a way to use a digital output (i.e. one that is only on or off) to simulate an analog or varying voltage output. PWM works by turning a digital output on and off very quickly. So quickly that the component connected to it can't tell the output s ...
... Pulse-width modulation (http://adafru.it/reK) (PWM) is a way to use a digital output (i.e. one that is only on or off) to simulate an analog or varying voltage output. PWM works by turning a digital output on and off very quickly. So quickly that the component connected to it can't tell the output s ...
5. Executive Summary The Automated Antenna Controller (AAC) is
... The following constraints will ensure that these demands are satisfied. The AAC must be capable of measuring and displaying up to 150 W RF power from an HF amateur radio with an accuracy of ± 1W. It should also measure and display frequencies ranging between 7 MHz to 30 MHz with a resolution of ± 30 ...
... The following constraints will ensure that these demands are satisfied. The AAC must be capable of measuring and displaying up to 150 W RF power from an HF amateur radio with an accuracy of ± 1W. It should also measure and display frequencies ranging between 7 MHz to 30 MHz with a resolution of ± 30 ...
COMPARISON BETWEEN TWO MODULATION TECHNIQUES FOR
... As already stated, SPWM is the simplest method of generating three phase sinusoidal voltages of variable frequency and amplitude using a three phase inverter bridge. The bridge consists of six power transistors (MOSFETs Metal-Oxide-Semiconductor Field Effect Transistor or IGBTs – Insulated Gate Bipo ...
... As already stated, SPWM is the simplest method of generating three phase sinusoidal voltages of variable frequency and amplitude using a three phase inverter bridge. The bridge consists of six power transistors (MOSFETs Metal-Oxide-Semiconductor Field Effect Transistor or IGBTs – Insulated Gate Bipo ...
Document
... are the same as in single-phase circuit. Input power factor is a little higher than single-phase circuit. Harmonics in the input current is a little lower thanthe single- phase circuit due to the cancellation of some harmonics among the 3 phases. To improve the input power factor: –Use DC bias or 3k ...
... are the same as in single-phase circuit. Input power factor is a little higher than single-phase circuit. Harmonics in the input current is a little lower thanthe single- phase circuit due to the cancellation of some harmonics among the 3 phases. To improve the input power factor: –Use DC bias or 3k ...
product assurance
... Static and dynamic (per MHz) power dissipation, allowing the power consumption at lower operating frequencies to be calculated, if representative; ...
... Static and dynamic (per MHz) power dissipation, allowing the power consumption at lower operating frequencies to be calculated, if representative; ...
Heathkit AJ-11 Tuner - Antique Radio Classified
... plied through transformer T8, to ratio detector tube V9A (6BN8). The ratio detector does the same job in an FM tuner as it does in an AM tuner. It recovers audio from the modulated IF signal. If the oscillator frequency changes (drifts), a small negative DC voltage is developed in the ratio detector ...
... plied through transformer T8, to ratio detector tube V9A (6BN8). The ratio detector does the same job in an FM tuner as it does in an AM tuner. It recovers audio from the modulated IF signal. If the oscillator frequency changes (drifts), a small negative DC voltage is developed in the ratio detector ...
Basic Architecture of Electronics Instrumentation Measurement System
... Electronic sensors • Generally electronic sensor consists of a primary transducer: changes “real world” parameter into electrical signal for example, heat, sound, etc • for example, a microphone (input device) converts sound waves into electrical signals for the amplifier to amplify (a process), an ...
... Electronic sensors • Generally electronic sensor consists of a primary transducer: changes “real world” parameter into electrical signal for example, heat, sound, etc • for example, a microphone (input device) converts sound waves into electrical signals for the amplifier to amplify (a process), an ...
gucevi jenerator san ve tic ltd sti
... High engine temperature Low coolant level Over /Under speed Under/over generator frequency Under/over generator voltage Oil pressure sensor open Phase rotation ELECTRICAL TRIP Earth fault kW over load Generator over current Negative phase sequence Static Battery Charger Battery charger is manufactur ...
... High engine temperature Low coolant level Over /Under speed Under/over generator frequency Under/over generator voltage Oil pressure sensor open Phase rotation ELECTRICAL TRIP Earth fault kW over load Generator over current Negative phase sequence Static Battery Charger Battery charger is manufactur ...
SIGNAL CONDITIONER Low Voltage DC Operated LVDT MACRO LVC-2500
... half-bridge sensors. Designed expressly for use in 24 Volt systems with PLCs and mini-PLCs, or in 12 Volt mobile and vehicular testing systems, it offers the user a choice of three analog outputs: 0 to ±10 V DC, 0 to 10 V DC, or 4 to 20 mA (sourcing) current loop in a 3-wire common ground system in ...
... half-bridge sensors. Designed expressly for use in 24 Volt systems with PLCs and mini-PLCs, or in 12 Volt mobile and vehicular testing systems, it offers the user a choice of three analog outputs: 0 to ±10 V DC, 0 to 10 V DC, or 4 to 20 mA (sourcing) current loop in a 3-wire common ground system in ...
PDF | 1,7 MB - Elmos Semiconductor AG
... 180mA continuously with the low current and up to 450mA continuously with the high current version. ...
... 180mA continuously with the low current and up to 450mA continuously with the high current version. ...
Proposed System
... inverters (VSI). The first one supports only the boost capability and the other supports the buck capability, but due to the high variation of the output voltage of these renewable energy sources a buck boost capability is a must. This buck-boost capability requires the enforcement of the aforementi ...
... inverters (VSI). The first one supports only the boost capability and the other supports the buck capability, but due to the high variation of the output voltage of these renewable energy sources a buck boost capability is a must. This buck-boost capability requires the enforcement of the aforementi ...
Pulsating Signal Injection-Based Axis Switching Sensorless Control
... from the zero-currentclamping (ZCC) effect for surface-mounted permanentmagnet motors. ...
... from the zero-currentclamping (ZCC) effect for surface-mounted permanentmagnet motors. ...
Voltage-Controlled Oscillator
... iii-1) Obtain an expression for Vmonitor as a function of time when the switch is OFF. Hint: It will help to sketch the flow of current (magnitude and direction) across the resistors and capacitor. iii-2) Obtain an expression for Vmonitor as a function of time when the switch is ON. iii-3) Obtain a ...
... iii-1) Obtain an expression for Vmonitor as a function of time when the switch is OFF. Hint: It will help to sketch the flow of current (magnitude and direction) across the resistors and capacitor. iii-2) Obtain an expression for Vmonitor as a function of time when the switch is ON. iii-3) Obtain a ...
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.