division 60 - City of Chesapeake
... Nominal operating voltage for all measurements shall be 120±3 volts rms. ...
... Nominal operating voltage for all measurements shall be 120±3 volts rms. ...
Design of 24-GHz 0.8-V 1.51-mW Coupling Current
... are the most common solutions. With a larger voltage signal can be converted to a higher ac current to reach a larger locking range. However, an increase in the size of the tail transistor also increases the undesired parasitic capacitance, which becomes a leakage path for a high-frequency injection ...
... are the most common solutions. With a larger voltage signal can be converted to a higher ac current to reach a larger locking range. However, an increase in the size of the tail transistor also increases the undesired parasitic capacitance, which becomes a leakage path for a high-frequency injection ...
DISCUSSION Pontifical Catholic University Rio Grande do
... • The two resonant filters provide sufficient decoupling between the preheating and the steady state operation, so that each may be designed for optimum performance. • The lamp may be started up without the adverse effects on the lamp lifetime. • The filaments power is eliminated after the preheatin ...
... • The two resonant filters provide sufficient decoupling between the preheating and the steady state operation, so that each may be designed for optimum performance. • The lamp may be started up without the adverse effects on the lamp lifetime. • The filaments power is eliminated after the preheatin ...
Section 3 Chapter 1
... We wish to be able to talk about, solve for, and indicate clearly the directions for both current and voltage. For current, we wish to be clear about which direction positive charges are moving. For voltage, we wish to be clear about which direction would result in a positive charge losing energy. T ...
... We wish to be able to talk about, solve for, and indicate clearly the directions for both current and voltage. For current, we wish to be clear about which direction positive charges are moving. For voltage, we wish to be clear about which direction would result in a positive charge losing energy. T ...
DAC715 数据资料 dataSheet 下载
... to the value of the fundamental frequency. It is expressed in % of the fundamental frequency amplitude at sampling rate fS. ...
... to the value of the fundamental frequency. It is expressed in % of the fundamental frequency amplitude at sampling rate fS. ...
Switching, protection, communication: the new NZM circuit
... It does not matter if the causes for a trip or a warning message with unbalance are required, or if all phase currents are to be displayed directly onsite and corrective actions are to be implemented with a critical load state. The Data Management Interface (DMI) always signals exact details. The re ...
... It does not matter if the causes for a trip or a warning message with unbalance are required, or if all phase currents are to be displayed directly onsite and corrective actions are to be implemented with a critical load state. The Data Management Interface (DMI) always signals exact details. The re ...
Evaluates: MAX8844Z/MAX8844Y MAX8844Z Evaluation Kit General Description Features
... where it precharges that cell with 10% of the user-programmed fast-charge current. The CHG indicator is driven low to indicate entry into the prequalification state. When the battery voltage exceeds 2.5V, the IC softstarts as it enters the fast-charge stage. The fastcharge current level is programme ...
... where it precharges that cell with 10% of the user-programmed fast-charge current. The CHG indicator is driven low to indicate entry into the prequalification state. When the battery voltage exceeds 2.5V, the IC softstarts as it enters the fast-charge stage. The fastcharge current level is programme ...
INTRODUCTION
... through the digital multimeter is going to be somewhere between 0 and 2 mA. If we want to extend the range of the analog multimeter so that it can read a current of 2 mA without going offscale we can, in theory, set the value of RDB exactly equal to the value of RM 2 . In this case a current of 2 mA ...
... through the digital multimeter is going to be somewhere between 0 and 2 mA. If we want to extend the range of the analog multimeter so that it can read a current of 2 mA without going offscale we can, in theory, set the value of RDB exactly equal to the value of RM 2 . In this case a current of 2 mA ...
RGB for ZX Spectrum 128, +2, +2A, +3
... The Spectrum 128 improves upon the display quality provided by the 48K Spectrum by having a dedicated socket that outputs both composite video and RGB signals. The composite video output measures 1.2V pk-pk at 75 ohm and is almost suitable for direct connection to the VIDEO IN pin of a TV's SCART so ...
... The Spectrum 128 improves upon the display quality provided by the 48K Spectrum by having a dedicated socket that outputs both composite video and RGB signals. The composite video output measures 1.2V pk-pk at 75 ohm and is almost suitable for direct connection to the VIDEO IN pin of a TV's SCART so ...
GR 1215-B Unit Osc., Manual
... Type 1215-B Unit Oscillator The Type 1215-B Unit Oscillator is a general-purpose power source for the radio-frequency laboratory. It covers the range of 50 to 250 Me with no moving contacts in the tuned circuit and can be used to drive bridges, admittance meters, impedance meters, impedance comparat ...
... Type 1215-B Unit Oscillator The Type 1215-B Unit Oscillator is a general-purpose power source for the radio-frequency laboratory. It covers the range of 50 to 250 Me with no moving contacts in the tuned circuit and can be used to drive bridges, admittance meters, impedance meters, impedance comparat ...
AD7677 - Analog Devices
... master read after convert mode. These inputs, part of the serial port, are used to slow down if desired the internal serial clock which clocks the data output. In the other serial modes, these pins are high impedance outputs. When SER/PAR is LOW, this output is used as the Bit 4 of the Parallel Port ...
... master read after convert mode. These inputs, part of the serial port, are used to slow down if desired the internal serial clock which clocks the data output. In the other serial modes, these pins are high impedance outputs. When SER/PAR is LOW, this output is used as the Bit 4 of the Parallel Port ...
pdf - Journal List - Academic Journals Database
... In terms of energy and power density, ultra capacitors can therefore be placed between batteries and conventional capacitors [4-5]. An ultra-capacitor is an electrochemical component which mimics characteristics of very high value capacitors. As a capacitive element, the ultracapacitor has no charge ...
... In terms of energy and power density, ultra capacitors can therefore be placed between batteries and conventional capacitors [4-5]. An ultra-capacitor is an electrochemical component which mimics characteristics of very high value capacitors. As a capacitive element, the ultracapacitor has no charge ...
Project_report_ADD_upd - UVA ECE Wiki
... critical path. This reduces total area. b. Upsize elements on the critical path to obtain the best delay. We sized the transistors to have equal pull-up and pull-down strength. Then, for elements driving big load (fanout), we upsized them to a point where the area does not increase too much, but the ...
... critical path. This reduces total area. b. Upsize elements on the critical path to obtain the best delay. We sized the transistors to have equal pull-up and pull-down strength. Then, for elements driving big load (fanout), we upsized them to a point where the area does not increase too much, but the ...
SP232A
... capacitors should be mounted as close as possible to the IC and have a low ESR (equivalent series resistance). Inexpensive, surface mount ceramic capacitors are ideal for use on charge pump. If polarized capacitors are used the positive and negative terminals should be connected as shown on the typi ...
... capacitors should be mounted as close as possible to the IC and have a low ESR (equivalent series resistance). Inexpensive, surface mount ceramic capacitors are ideal for use on charge pump. If polarized capacitors are used the positive and negative terminals should be connected as shown on the typi ...
Ω MAX4741/MAX4742/MAX4743 0.8 , Low-Voltage, Single-Supply Dual SPST
... switches that operate from a single +1.6V to +3.6V supply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching. When powered from a +3V supply, the MAX474 ...
... switches that operate from a single +1.6V to +3.6V supply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching. When powered from a +3V supply, the MAX474 ...
全面认识开关型电源中的 BUCK-BOOST 应用报告 ZHCA041–1999年3月–2002年11月修订
... function of rated load are given. 时 整个开关周期内都有电流连续通过电感器 非连续电感器电流模式是开关周期内的一部分时间 It is，very desirable for a converter to stay；in one mode only over its expected operating 电感电流为because 达到一个峰值后 conditions the power stage frequency response changes significantly between the ，再回到 0，它在整个周期内从 0开始， ...
... function of rated load are given. 时 整个开关周期内都有电流连续通过电感器 非连续电感器电流模式是开关周期内的一部分时间 It is，very desirable for a converter to stay；in one mode only over its expected operating 电感电流为because 达到一个峰值后 conditions the power stage frequency response changes significantly between the ，再回到 0，它在整个周期内从 0开始， ...
MAX5171/MAX5173 Low-Power, Serial, 14-Bit DACs with Force/Sense Voltage Output General Description
... with Force/Sense Voltage Output The MAX5171/MAX5173 low-power, serial, voltage-output, 14-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5171 operates from a +5V single supply, and the MAX5173 operates from a +3V single supp ...
... with Force/Sense Voltage Output The MAX5171/MAX5173 low-power, serial, voltage-output, 14-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5171 operates from a +5V single supply, and the MAX5173 operates from a +3V single supp ...
— FAN54047 FAN54040 USB-OTG, 1.55 A, Li-Ion Switching Charger with Power
... rail, ensuring that the system can power up quickly following a VBUS connection. The power path circuit ensures that the system rail stays up when the charger is plugged in, even if the battery is dead or shorted. The charging parameters and operating modes are programmable through an I2C Interface ...
... rail, ensuring that the system can power up quickly following a VBUS connection. The power path circuit ensures that the system rail stays up when the charger is plugged in, even if the battery is dead or shorted. The charging parameters and operating modes are programmable through an I2C Interface ...
Si4455 LOW-POWER PA MATCHING
... concerned with quickly obtaining a set of component values for a desired frequency of operation. For those users, component values for CLE matching network for multiple frequencies and power levels across the operating range of the Si4455 RFIC are summarized here. The matching networks may be realiz ...
... concerned with quickly obtaining a set of component values for a desired frequency of operation. For those users, component values for CLE matching network for multiple frequencies and power levels across the operating range of the Si4455 RFIC are summarized here. The matching networks may be realiz ...
AN-912 Common Data Transmission Parameters and their Definitions
... II—Maximum Input Current. The current into (out of) an input when the maximum specified input voltage is applied to that input. Note that current out of a device pin is given as a negative value. IIN—Input Current. The current into (out of) a receiver input when a specified input voltage, or voltage ...
... II—Maximum Input Current. The current into (out of) an input when the maximum specified input voltage is applied to that input. Note that current out of a device pin is given as a negative value. IIN—Input Current. The current into (out of) a receiver input when a specified input voltage, or voltage ...
1.8-V, 7-MHz, 90-dB CMRR, SINGLE-SUPPLY, RAIL-TO-RAIL I/O OPERATIONAL AMPLIFIER OPA2364-Q1 FEATURES
... The OPA2364 and OPA4364 are high-performance CMOS operational amplifiers optimized for low-voltage single-supply operation. These miniature low-cost amplifiers are designed to operate on single supplies from 1.8 V (±0.9 V) to 5.5 V (±2.75 V). Applications include sensor amplification and signal cond ...
... The OPA2364 and OPA4364 are high-performance CMOS operational amplifiers optimized for low-voltage single-supply operation. These miniature low-cost amplifiers are designed to operate on single supplies from 1.8 V (±0.9 V) to 5.5 V (±2.75 V). Applications include sensor amplification and signal cond ...
BH76106HFV
... As a reference, try the combinations shown below when reducing capacitance. As the capacitance of the VOUT capacitor is made smaller, SAG becomes greater. ...
... As a reference, try the combinations shown below when reducing capacitance. As the capacitance of the VOUT capacitor is made smaller, SAG becomes greater. ...
DS1677 Portable System Controller GENERAL DESCRIPTION FEATURES
... First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the RST pin to the active state thus warning a processor-based system of impending power failure. ...
... First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the RST pin to the active state thus warning a processor-based system of impending power failure. ...
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.