Videotape recorder/reproducer - European Patent Office
... the operation of the tape transport and operating mode at an edit point A, for this purpose, it is programmed to operate so that when shifted from a record mode to a pause mode at the edit point, the tape is rewound by a first predetermined amount (to B), determined by the counting of a predetermine ...
... the operation of the tape transport and operating mode at an edit point A, for this purpose, it is programmed to operate so that when shifted from a record mode to a pause mode at the edit point, the tape is rewound by a first predetermined amount (to B), determined by the counting of a predetermine ...
High-voltage, High-current Darlington Transistor Array, ULN2003B
... of a single transistor with a very high current gain. This beta can be high at certain currents see Figure 5. The GPIO voltage is converted to base current through the 2.7-kΩ resistor connected between the input and base of the pre-driver Darlington NPN. The 7.2-kΩ and 3-kΩ resistors connected betwe ...
... of a single transistor with a very high current gain. This beta can be high at certain currents see Figure 5. The GPIO voltage is converted to base current through the 2.7-kΩ resistor connected between the input and base of the pre-driver Darlington NPN. The 7.2-kΩ and 3-kΩ resistors connected betwe ...
hill climbing techniques for tracking maximum power point in solar
... Solar energy is a clean and renewable energy resource for power generation. The power output from a solar photovoltaic system mainly depends on the nature of the connected load because of non-linear I-V characteristics. ...
... Solar energy is a clean and renewable energy resource for power generation. The power output from a solar photovoltaic system mainly depends on the nature of the connected load because of non-linear I-V characteristics. ...
Hawki® AHU Controller Installation Instructions
... module designed to control various configurations of built-up air-handling systems, such as variable air volume, variable volume and temperature, dual duct, multizone, etc. The Hawki communicates with Novar Control Corporation’s Lingo®, Savvy®, or Executive Processor (EP/2), and other controllers in ...
... module designed to control various configurations of built-up air-handling systems, such as variable air volume, variable volume and temperature, dual duct, multizone, etc. The Hawki communicates with Novar Control Corporation’s Lingo®, Savvy®, or Executive Processor (EP/2), and other controllers in ...
MAX4772/MAX4773 200mA/500mA Selectable Current
... guaranteed 200mA or 500mA current limit, making them ideal for SDIO and other load-switching applications. These analog switches have a low 0.2Ω on-resistance and operate from a 2.0V to 4.5V input voltage range. When the switch is on and a load is connected to the port, a guaranteed blanking time of ...
... guaranteed 200mA or 500mA current limit, making them ideal for SDIO and other load-switching applications. These analog switches have a low 0.2Ω on-resistance and operate from a 2.0V to 4.5V input voltage range. When the switch is on and a load is connected to the port, a guaranteed blanking time of ...
Digital signal
... Messages transmitted in baseband or broadband depend on the properties of transmission media and channels If a physical channel is a low-pass wideband channel A low pass channel with a bandwidth that starts from zero, will only allow electrical signals below a certain frequency Digital signals c ...
... Messages transmitted in baseband or broadband depend on the properties of transmission media and channels If a physical channel is a low-pass wideband channel A low pass channel with a bandwidth that starts from zero, will only allow electrical signals below a certain frequency Digital signals c ...
L43067578
... makes it difficult to optimize the design of these converter. Various control method has proposed to reduce the dc bus capacitor voltage in fixed frequency pulse width modulated single stage converter operating with only one controller. By using the only one controller the dc bus capacitor voltage ...
... makes it difficult to optimize the design of these converter. Various control method has proposed to reduce the dc bus capacitor voltage in fixed frequency pulse width modulated single stage converter operating with only one controller. By using the only one controller the dc bus capacitor voltage ...
INA118 数据资料 dataSheet 下载
... to +36V. Figure 5 shows a basic single supply circuit. The output Ref terminal is connected to ground. Zero differential input voltage will demand an output voltage of 0V (ground). Actual output voltage swing is limited to approximately 35mV above ground, when the load is referred to ground as shown ...
... to +36V. Figure 5 shows a basic single supply circuit. The output Ref terminal is connected to ground. Zero differential input voltage will demand an output voltage of 0V (ground). Actual output voltage swing is limited to approximately 35mV above ground, when the load is referred to ground as shown ...
Over current and over voltage protection of permanent
... voltage, and considerable damage can be caused by overvoltage. At the given rated voltage electric light bulb with a wire in it will carry a current just large enough for the wire to get very hot, but this hot not enough to melt it. The magnitude of current in a circuit depends on the voltage suppli ...
... voltage, and considerable damage can be caused by overvoltage. At the given rated voltage electric light bulb with a wire in it will carry a current just large enough for the wire to get very hot, but this hot not enough to melt it. The magnitude of current in a circuit depends on the voltage suppli ...
LT3 Time-of-Flight Laser Distance
... Output saturation NPN: less than 200 mV @ 10 mA; less than 600 mV @ 100 mA Output saturation PNP: less than 1.2 V at 10 mA; less than 1.6 V at 100 mA Analog voltage output: 2.5 kΩ min. load impedance (voltage sourcing) Analog current output: 1 kΩ max. @ 24V; max. load resistance = [Vcc-4.5/0.02 Ω] ( ...
... Output saturation NPN: less than 200 mV @ 10 mA; less than 600 mV @ 100 mA Output saturation PNP: less than 1.2 V at 10 mA; less than 1.6 V at 100 mA Analog voltage output: 2.5 kΩ min. load impedance (voltage sourcing) Analog current output: 1 kΩ max. @ 24V; max. load resistance = [Vcc-4.5/0.02 Ω] ( ...
H6-type transformerless single-phase inverter for grid
... the advantage that the power is produced in close proximity to where it is consumed. This way the losses because of transmission lines are not present. Among a variety of renewable energy sources, photovoltaic (PV) is predicted to have biggest generation, up to 60% of the total energy by the end of ...
... the advantage that the power is produced in close proximity to where it is consumed. This way the losses because of transmission lines are not present. Among a variety of renewable energy sources, photovoltaic (PV) is predicted to have biggest generation, up to 60% of the total energy by the end of ...
GR-17-01 - GRid-connected Advanced Power Electronics Systems
... that operate with switching frequencies from 50-300kHz compared to their Silicon-based counterparts, which operate from 5-30kHz. Increased switching frequency should enable significant reductions in passive component sizes, such as differential mode (DM) and common mode (CM) filters, without signifi ...
... that operate with switching frequencies from 50-300kHz compared to their Silicon-based counterparts, which operate from 5-30kHz. Increased switching frequency should enable significant reductions in passive component sizes, such as differential mode (DM) and common mode (CM) filters, without signifi ...
EMI - Renesas e
... Gain insight into how Renesas applies these techniques for handling noise problems in its microcomputer products. ...
... Gain insight into how Renesas applies these techniques for handling noise problems in its microcomputer products. ...
GZ3412811286
... processed signal is compared with the reference voltage Vref . The error signal is used by the PI controller to estimate the control voltage that is compared with a saw-tooth waveform in the pulse width modulator (PWM). The pulse signal produced by the PWMis fed to the two buffers that can be enable ...
... processed signal is compared with the reference voltage Vref . The error signal is used by the PI controller to estimate the control voltage that is compared with a saw-tooth waveform in the pulse width modulator (PWM). The pulse signal produced by the PWMis fed to the two buffers that can be enable ...
Generators for plasma excitation.
... The first choice for large area deposition processes using double magnetron sputtering. Our latest MF family attains a formerly unachievable coating quality – even with the most difficult reactive processes, and with simultaneous high output sputtering rate. Radio frequency (RF) TruPlasma RF Serie 1 ...
... The first choice for large area deposition processes using double magnetron sputtering. Our latest MF family attains a formerly unachievable coating quality – even with the most difficult reactive processes, and with simultaneous high output sputtering rate. Radio frequency (RF) TruPlasma RF Serie 1 ...
osc/INTELLIMETER - Standard Energy Systems, Inc.
... If solid-core window type current transformers are used, remove each feeder from its lug and place a current transformer on the feeder with the polarity mark on the line side of the current transformer. When metering critical loads that cannot be shut down, provision of a means to short circuit CT s ...
... If solid-core window type current transformers are used, remove each feeder from its lug and place a current transformer on the feeder with the polarity mark on the line side of the current transformer. When metering critical loads that cannot be shut down, provision of a means to short circuit CT s ...
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.