AN137: Lithium Ion Battery Charger Using C8051F300
... Note that while charging a battery, most of the electrical energy is stored in a chemical process, but not all as no system is 100 percent efficient. Some of the electrical energy is converter to thermal energy, heating up the battery. This is fine until the battery reaches full charge at which time ...
... Note that while charging a battery, most of the electrical energy is stored in a chemical process, but not all as no system is 100 percent efficient. Some of the electrical energy is converter to thermal energy, heating up the battery. This is fine until the battery reaches full charge at which time ...
BD91501MUV
... control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load, while it utilizes TM SLLM (Simple Light Load Mode) operation for lighter load to improve efficiency. ○Synchronous rectifier It does not require the power to be dissipated by a rectifier externally ...
... control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load, while it utilizes TM SLLM (Simple Light Load Mode) operation for lighter load to improve efficiency. ○Synchronous rectifier It does not require the power to be dissipated by a rectifier externally ...
PowerPac™ Basic Power Supply Instruction Manual - Bio-Rad
... unit equilibrate to room temperature for a minimum of 2 hours before using it. 6. Never connect a high voltage output lead to earth ground. This defeats the floating electrical isolation of the power supply and exposes the user to potentially lethal high voltages. ...
... unit equilibrate to room temperature for a minimum of 2 hours before using it. 6. Never connect a high voltage output lead to earth ground. This defeats the floating electrical isolation of the power supply and exposes the user to potentially lethal high voltages. ...
HMC226 / 226E
... 2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of 3 to 8 Volts applied to the CMOS logic gates. 3. DC Blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation. 4. Highest RF signal power capability is achieved wi ...
... 2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of 3 to 8 Volts applied to the CMOS logic gates. 3. DC Blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation. 4. Highest RF signal power capability is achieved wi ...
04 System voltage
... Another factor to consider regarding service voltage is the voltage regulation of the utility system. Voltages defined by the utility as “distribution” should, in most cases, have adequate voltage regulation for the loads served. Voltages defined as “subtransmission” or “transmission”, however, ofte ...
... Another factor to consider regarding service voltage is the voltage regulation of the utility system. Voltages defined by the utility as “distribution” should, in most cases, have adequate voltage regulation for the loads served. Voltages defined as “subtransmission” or “transmission”, however, ofte ...
Methods for rapid frequency-domain characterization of leakage
... analysis of the SiNW FETs has not gained much popularity. One of the main reasons is that efficient frequency-responsemeasurement techniques are not well known. All the measurements in these studies were performed by using a sine-sweepbased network analyzer. Although the method usually yields reliab ...
... analysis of the SiNW FETs has not gained much popularity. One of the main reasons is that efficient frequency-responsemeasurement techniques are not well known. All the measurements in these studies were performed by using a sine-sweepbased network analyzer. Although the method usually yields reliab ...
AN-376 Logic-System Design Techniques Reduce Switching-CMOS Power AN-
... where POS is the total power, D the one-shot’s duty cycle, CEXT the timing capacitor, CL the load on both outputs, and f the operating frequency. In general, the CPD term is small at lower frequencies; you can safely set it to zero to simplify the equation. What about oscillators? The circuits shown ...
... where POS is the total power, D the one-shot’s duty cycle, CEXT the timing capacitor, CL the load on both outputs, and f the operating frequency. In general, the CPD term is small at lower frequencies; you can safely set it to zero to simplify the equation. What about oscillators? The circuits shown ...
Hi-Fi AUDIO COMPONENTS 2012 / 2013
... expands audio data to 32 bits and uses a proprietary algorithm to interpolate the data and perform up-conversion and sampling, achieving a playback sound that is close to the original source. In addition, the use of algorithms ideal for frequency characteristics outside the audible range to filter s ...
... expands audio data to 32 bits and uses a proprietary algorithm to interpolate the data and perform up-conversion and sampling, achieving a playback sound that is close to the original source. In addition, the use of algorithms ideal for frequency characteristics outside the audible range to filter s ...
SSPV Code.
... interconnection between the SSPV and the utility distribution network, referring to the node on the utility network electrically closest to a particular SSPV’s installation prevention of islanding SSPV’s ability to detect loss-of-grid and prevent the condition of unintended islanding ...
... interconnection between the SSPV and the utility distribution network, referring to the node on the utility network electrically closest to a particular SSPV’s installation prevention of islanding SSPV’s ability to detect loss-of-grid and prevent the condition of unintended islanding ...
SECTION 16204
... The transfer switch shall be electrically operated & mechanically HELD. The Automatic transfer and bypass-isolation switch (ATS/BPS) shall consist of an inherently double-throw power transfer switch mechanism and a microprocessor controller to provide automatic operation. Electrical operation shall ...
... The transfer switch shall be electrically operated & mechanically HELD. The Automatic transfer and bypass-isolation switch (ATS/BPS) shall consist of an inherently double-throw power transfer switch mechanism and a microprocessor controller to provide automatic operation. Electrical operation shall ...
Technical Data Sheet HCI634H - Winding 311 and 312
... eliminates triplen (3rd, 9th, 15th …) harmonics on the voltage waveform and is found to be the optimum design for trouble-free supply of non-linear loads. The 2/3 pitch design avoids excessive neutral currents sometimes seen with higher winding pitches, when in parallel with the mains. A fully conne ...
... eliminates triplen (3rd, 9th, 15th …) harmonics on the voltage waveform and is found to be the optimum design for trouble-free supply of non-linear loads. The 2/3 pitch design avoids excessive neutral currents sometimes seen with higher winding pitches, when in parallel with the mains. A fully conne ...
MAX7306/MAX7307 SMBus/I C Interfaced 4-Port, Level-Translating GPIOs and LED Drivers
... The MAX7306/MAX7307 ports P2, P3, and P4 can be configured as inputs, push-pull outputs, and open-drain outputs. Port P1 can be configured as a general-purpose input, open-drain output, or an open-drain INT output. Ports P2 and P3 can be configured as OSCIN and OSCOUT, respectively. The MAX7306/MAX7 ...
... The MAX7306/MAX7307 ports P2, P3, and P4 can be configured as inputs, push-pull outputs, and open-drain outputs. Port P1 can be configured as a general-purpose input, open-drain output, or an open-drain INT output. Ports P2 and P3 can be configured as OSCIN and OSCOUT, respectively. The MAX7306/MAX7 ...
a CMOS 80 MHz Monolithic 256 24(18) Color Palette RAM
... on the analog outputs (see Figures 3 and 4). SYNC does not override any other control or data input, as shown in Tables IV and V; therefore, it should be asserted only during the blanking interval. It is latched on the rising edge of CLOCK. Clock input (TTL compatible). The rising edge of CLOCK latc ...
... on the analog outputs (see Figures 3 and 4). SYNC does not override any other control or data input, as shown in Tables IV and V; therefore, it should be asserted only during the blanking interval. It is latched on the rising edge of CLOCK. Clock input (TTL compatible). The rising edge of CLOCK latc ...
Preventing Excess Power Consumption on
... (BOM). Texas Instruments has several analog switches that are designed to accept control signals from a low-voltage microprocessor and solve the excess current consumption issue. • Analog switches with low control input threshold – These are devices with control inputs designed to have a switching t ...
... (BOM). Texas Instruments has several analog switches that are designed to accept control signals from a low-voltage microprocessor and solve the excess current consumption issue. • Analog switches with low control input threshold – These are devices with control inputs designed to have a switching t ...
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.