Motor controller guide
... Controlling brushed DC motors using microcontrollers is often accomplished by using an H-bridge, which performs two important functions regarding motor control. The first function amplifies the motor’s command signal to be within the operational range of the motor. The motor's command signal is typi ...
... Controlling brushed DC motors using microcontrollers is often accomplished by using an H-bridge, which performs two important functions regarding motor control. The first function amplifies the motor’s command signal to be within the operational range of the motor. The motor's command signal is typi ...
A Review On Power Quality Improvement By UPQC Abstract
... protective devices, nuisance in the communication systems and disturbance in pilot wire communication. Harmonics elements have higher frequency than the system frequency. For example if we are having a system of frequency 50 Hz then the harmonics which will be present in the system will be of order ...
... protective devices, nuisance in the communication systems and disturbance in pilot wire communication. Harmonics elements have higher frequency than the system frequency. For example if we are having a system of frequency 50 Hz then the harmonics which will be present in the system will be of order ...
1 X 600Watt Class D Audio Amplifier Board – TAS5630 User`s Guide
... recommended that the output signal amplitude is no larger than the power supply voltage once the input signal reaches the peak. For example, the maximum amplitude of the input signal is no more than 615mV RMS when power supply voltage is 50V, load impedance is 2 ohm and the gain is set at 35 dB. The ...
... recommended that the output signal amplitude is no larger than the power supply voltage once the input signal reaches the peak. For example, the maximum amplitude of the input signal is no more than 615mV RMS when power supply voltage is 50V, load impedance is 2 ohm and the gain is set at 35 dB. The ...
Chapter 5: Diodes I. Theory
... the input there is a forward path through the diode bridge. While two of the diodes are forward biased, the other two are reverse biased and effectively eliminated from the circuit. Both conduction paths cause current to flow in the same direction through the load resistor, accomplishing ...
... the input there is a forward path through the diode bridge. While two of the diodes are forward biased, the other two are reverse biased and effectively eliminated from the circuit. Both conduction paths cause current to flow in the same direction through the load resistor, accomplishing ...
Sine Processing
... settings, like unit, color, description,... 3. COLA (frequency) channel) COLA (constant output level amplitude) is a sine wave (voltage) at constant amplitude that is used for reference when calculation exact frequency for DFT calculation at instantenious frequency. ...
... settings, like unit, color, description,... 3. COLA (frequency) channel) COLA (constant output level amplitude) is a sine wave (voltage) at constant amplitude that is used for reference when calculation exact frequency for DFT calculation at instantenious frequency. ...
MAX1007 Mobile-Radio Analog Controller ________________General Description ____________________________Features
... goes high, and the PSD circuit is turned on. A poweron-reset signal initializes the D flip-flop so that it always starts with BANT low. After 4 clocks to reset the peak detector, PSDCTRL goes high to start the measurement. The T/H stage acquires the signal for 8 clocks while PSDCTRL is high, then ho ...
... goes high, and the PSD circuit is turned on. A poweron-reset signal initializes the D flip-flop so that it always starts with BANT low. After 4 clocks to reset the peak detector, PSDCTRL goes high to start the measurement. The T/H stage acquires the signal for 8 clocks while PSDCTRL is high, then ho ...
Modifying the Yaesu FT-847 External 22.625 MHz
... The simple circuit shown in Figure 3 will be added to inject the external signal into the Osc Output point, and cut power to the oscillator when the external cable is connected. ...
... The simple circuit shown in Figure 3 will be added to inject the external signal into the Osc Output point, and cut power to the oscillator when the external cable is connected. ...
Model NV-3272 - Pro-Vision Distribution
... Employing NVT’s latest generation DigitalEQ technology, the NV-3272 is an 32-channel active (amplified) hub that allows the transmission of real-time monochrome or colour video for distances up to 1,6km (1 mile) using Category 5 or better unshielded twisted-pair (UTP) cable. The receiver hub continu ...
... Employing NVT’s latest generation DigitalEQ technology, the NV-3272 is an 32-channel active (amplified) hub that allows the transmission of real-time monochrome or colour video for distances up to 1,6km (1 mile) using Category 5 or better unshielded twisted-pair (UTP) cable. The receiver hub continu ...
TPS61085T 数据资料 dataSheet 下载
... During the on-time, the voltage across the inductor causes the current in it to rise. When the current reaches a threshold value set by the internal GM amplifier, the power transistor is turned off, the energy stored into the inductor is then released and the current flows through the Schottky diode ...
... During the on-time, the voltage across the inductor causes the current in it to rise. When the current reaches a threshold value set by the internal GM amplifier, the power transistor is turned off, the energy stored into the inductor is then released and the current flows through the Schottky diode ...
A Novel and Simple Single-Phase Modulator for the Nested Neutral
... converter topology for medium-voltage applications with interesting properties such as operating over a wide range of voltages (2.4–7.2 KV) without the need for connecting the power semiconductor in series, high quality output voltage, and less number of components in compare to other classical four ...
... converter topology for medium-voltage applications with interesting properties such as operating over a wide range of voltages (2.4–7.2 KV) without the need for connecting the power semiconductor in series, high quality output voltage, and less number of components in compare to other classical four ...
Protection of High-Voltage Power Supplies
... supplies of opposite polarity, a higher voltage HVPS arcing to a lower voltage HVPS, plasma discharge through an HVPS, high-speed current spikes, or opposite-polarity voltage spikes. These occurrences require supplemental protection circuitry in order to ensure satisfactory operation of the UltraVol ...
... supplies of opposite polarity, a higher voltage HVPS arcing to a lower voltage HVPS, plasma discharge through an HVPS, high-speed current spikes, or opposite-polarity voltage spikes. These occurrences require supplemental protection circuitry in order to ensure satisfactory operation of the UltraVol ...
Aug 1998 4.5ns Dual-Comparator-Based Crystal Oscillator has 50% Duty Cycle and Complementary Outputs.PDF
... noise bringing the total to about 24µV). This compares favorably with the nominal 16-bit LSB increment of 31µV, thus barely impacting the converter dynamic range. The common mode output voltage of the circuit in Figure 2 is fixed at 0.5V DC, though some loads may require a different level if DC-coup ...
... noise bringing the total to about 24µV). This compares favorably with the nominal 16-bit LSB increment of 31µV, thus barely impacting the converter dynamic range. The common mode output voltage of the circuit in Figure 2 is fixed at 0.5V DC, though some loads may require a different level if DC-coup ...
RA05H9595M 数据资料DataSheet下载
... sufficient to guarantee the level of reliability typically deemed necessary for critical communications elements. Examples of critical communications elements would include transmitters for base station applications and fixed station applications that operate with long term continuous transmission a ...
... sufficient to guarantee the level of reliability typically deemed necessary for critical communications elements. Examples of critical communications elements would include transmitters for base station applications and fixed station applications that operate with long term continuous transmission a ...
Let Your Light Shine
... 3. Solar energy is plentiful in many regions and should be utilized. Obviously, solar energy is a daytime function thus batteries are a necessity for non sunny times. 4. Micro/Mini hydro can be source of renewable energy in the proper setting. Righta-way authorizations, permissions to use or modify ...
... 3. Solar energy is plentiful in many regions and should be utilized. Obviously, solar energy is a daytime function thus batteries are a necessity for non sunny times. 4. Micro/Mini hydro can be source of renewable energy in the proper setting. Righta-way authorizations, permissions to use or modify ...
OP400
... 33 mW of power per channel is shown in Figure 30. The linearity of the instrumentation amplifier exceeds 16 bits in gains of 5 to 200 and is better than 14 bits in gains from 200 to 1000. CMRR is above 115 dB (G = 1000). Offset voltage drift is typically 0.4 μV/°C over the military temperature range ...
... 33 mW of power per channel is shown in Figure 30. The linearity of the instrumentation amplifier exceeds 16 bits in gains of 5 to 200 and is better than 14 bits in gains from 200 to 1000. CMRR is above 115 dB (G = 1000). Offset voltage drift is typically 0.4 μV/°C over the military temperature range ...
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.