ADM5170 数据手册DataSheet 下载
... The ADM5170 has two programmable output modes which provide different output voltage levels. The low output mode meets the specifications of EIA standards RS-423A while the high output mode meets the RS-232 specifications. The high output mode provides greater output swings and is suitable for drivi ...
... The ADM5170 has two programmable output modes which provide different output voltage levels. The low output mode meets the specifications of EIA standards RS-423A while the high output mode meets the RS-232 specifications. The high output mode provides greater output swings and is suitable for drivi ...
0319 - Three Axis Low-g Micromachined Accelerometer
... active, the device outputs are turned off, providing significant reduction of operating current. A low input signal on pin 7 (Sleep Mode) will place the device in this mode and reduce the current to 3 µA typ. For lower power consumption, it is recommended to set g-Select to 3g mode. By placing a hig ...
... active, the device outputs are turned off, providing significant reduction of operating current. A low input signal on pin 7 (Sleep Mode) will place the device in this mode and reduce the current to 3 µA typ. For lower power consumption, it is recommended to set g-Select to 3g mode. By placing a hig ...
MAX1730 50mA Regulated Step-Down Charge Pump for 1.8V or 1.9V Logic General Description
... Charge pumps work by passing energy through capacitors. They generally work in two phases. In the first phase, the input source charges the flying capacitors. The input capacitor helps reduce the source’s input impedance. In the second phase, the switching capacitors transfer their charge to the out ...
... Charge pumps work by passing energy through capacitors. They generally work in two phases. In the first phase, the input source charges the flying capacitors. The input capacitor helps reduce the source’s input impedance. In the second phase, the switching capacitors transfer their charge to the out ...
UT7R995 Clock Generator - Aeroflex Microelectronic Solutions
... disable the output clocks. Each clock output that is controlled by the sOE pin is synchronously enabled/disabled by the individual output clock. When HIGH, sOE disables all clocks except 2Q0 and 2Q1. When disabled, 1Q0, 1Q1, 3Q0, and 3Q1 will always enter a LOW state when PE/HD is MID or HIGH, and t ...
... disable the output clocks. Each clock output that is controlled by the sOE pin is synchronously enabled/disabled by the individual output clock. When HIGH, sOE disables all clocks except 2Q0 and 2Q1. When disabled, 1Q0, 1Q1, 3Q0, and 3Q1 will always enter a LOW state when PE/HD is MID or HIGH, and t ...
a new interleaved three-phase single-stage pfc ac–dc
... the operation of the converter is explained, the steady-state characteristics of the new converter are determined, and its design is discussed. The feasibility of the new converter is confirmed with experimental results obtained from a prototype converter, and its efficiency is compared to that of a ...
... the operation of the converter is explained, the steady-state characteristics of the new converter are determined, and its design is discussed. The feasibility of the new converter is confirmed with experimental results obtained from a prototype converter, and its efficiency is compared to that of a ...
A 0.5V, 2.41GHz, 196.3dBc/Hz FoM Differential Colpitts VCO with an
... As CMOS technologies continue to be scaled down to reduce cost, increase speed, and achieve higher levels of integration, small and low-voltage voltage-controlled oscillators (VCOs) are highly demanded. However, the low-supply voltage severely limits the output voltage swing and therefore the output ...
... As CMOS technologies continue to be scaled down to reduce cost, increase speed, and achieve higher levels of integration, small and low-voltage voltage-controlled oscillators (VCOs) are highly demanded. However, the low-supply voltage severely limits the output voltage swing and therefore the output ...
White Paper - Power Conversion Reliability
... parts were manufactured in a highly controlled and traceable manner, this would result in a more reliable end product. Eventually it became apparent these approaches were not effective. No amount of inspection or unit-level testing was enough to overcome a design that was either overly complex or ha ...
... parts were manufactured in a highly controlled and traceable manner, this would result in a more reliable end product. Eventually it became apparent these approaches were not effective. No amount of inspection or unit-level testing was enough to overcome a design that was either overly complex or ha ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331
... The proposed soft-switching interleaved boost converter can not only exploit the interleaved converter, but also reduce switching losses through the soft-switching technique. Therefore, the output power of the PV array can be boosted with high efficiency. This paper presents the operational principl ...
... The proposed soft-switching interleaved boost converter can not only exploit the interleaved converter, but also reduce switching losses through the soft-switching technique. Therefore, the output power of the PV array can be boosted with high efficiency. This paper presents the operational principl ...
MAX15023 Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller General Description
... The MAX15023’s adaptive synchronous rectification eliminates the need for external freewheeling Schottky diodes. The device also utilizes the external low-side MOSFET’s on-resistance as a current-sense element, eliminating the need for a current-sense resistor. This protects the DCDC components from ...
... The MAX15023’s adaptive synchronous rectification eliminates the need for external freewheeling Schottky diodes. The device also utilizes the external low-side MOSFET’s on-resistance as a current-sense element, eliminating the need for a current-sense resistor. This protects the DCDC components from ...
NLAS7223C High-Speed USB 2.0 (480 Mbps)
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor doe ...
... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor doe ...
Chapter 3 VOLTAGE CONTROL
... the load will be very small and the distributed shunt capacitances throughout the transmission line become predominant making the receiving-end voltage greater than the sending-end voltage (Ferranti effect). Thus during off-peak hours there may be voltage rise in the transmission line from sending-e ...
... the load will be very small and the distributed shunt capacitances throughout the transmission line become predominant making the receiving-end voltage greater than the sending-end voltage (Ferranti effect). Thus during off-peak hours there may be voltage rise in the transmission line from sending-e ...
L272 / L272A Dual Power Operational Amplifier L272 / L272 A —
... 1. Life support devices or systems are devices or systems which, (a) are 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to intended for surgical implant into the body or (b) support or sustain life, and (c) whose fail ...
... 1. Life support devices or systems are devices or systems which, (a) are 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to intended for surgical implant into the body or (b) support or sustain life, and (c) whose fail ...
MAX6978 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection and Watchdog
... The functions of the five interface pins are as follows. DIN is the serial-data input, and must be stable when it is sampled on the rising edge of CLK. Data is shifted in, MSB first. This means that data bit D7 is clocked in first, followed by 7 more data bits, finishing with the LSB D0. CLK is the ...
... The functions of the five interface pins are as follows. DIN is the serial-data input, and must be stable when it is sampled on the rising edge of CLK. Data is shifted in, MSB first. This means that data bit D7 is clocked in first, followed by 7 more data bits, finishing with the LSB D0. CLK is the ...
Subsynchronous torque interaction for HVDC Light B - IEA
... Today a new type of HVDC is gaining ground. It makes use of the latest developed semiconductor technology for power conversion between AC and DC. The semiconductors used are IGBTs (Insulated Gate Bipolar Transistors), the converters are VSC (Voltage Source Converters) and they operate with very high ...
... Today a new type of HVDC is gaining ground. It makes use of the latest developed semiconductor technology for power conversion between AC and DC. The semiconductors used are IGBTs (Insulated Gate Bipolar Transistors), the converters are VSC (Voltage Source Converters) and they operate with very high ...
Transformer Based Voltage Sag Generator to perform LVRT and
... the cursors) that causes an overcurrent in switch 1 (signal 4). In Fig. 5 the delay time is chosen to ∆t = 2 ms and no overcurrent was measured. An overvoltage at the output of the transformer can be caused by switching off large load currents if the load contains inductances like machines that have ...
... the cursors) that causes an overcurrent in switch 1 (signal 4). In Fig. 5 the delay time is chosen to ∆t = 2 ms and no overcurrent was measured. An overvoltage at the output of the transformer can be caused by switching off large load currents if the load contains inductances like machines that have ...
ESAD_SVT - Jefferson Lab
... electronic components. The design of the cold plate was chosen in order to minimize risks and the cold plate, after the assembly, was tested at high pressure to verify the absence of leaks. During operation the temperature, flow, and pressure of the liquid at the chiller output as well as the temper ...
... electronic components. The design of the cold plate was chosen in order to minimize risks and the cold plate, after the assembly, was tested at high pressure to verify the absence of leaks. During operation the temperature, flow, and pressure of the liquid at the chiller output as well as the temper ...
LVD-12-30 Low Voltage Disconnect
... 2) Connect a variable power supply (with output appropriate for 12, 24 or 48 volt applications) to the input and sense terminals. Connect a digital voltmeter to the same terminals. 3) Connect an ohm meter or continuity checker to the input and output terminals. 4) Turn the connect potentiometer full ...
... 2) Connect a variable power supply (with output appropriate for 12, 24 or 48 volt applications) to the input and sense terminals. Connect a digital voltmeter to the same terminals. 3) Connect an ohm meter or continuity checker to the input and output terminals. 4) Turn the connect potentiometer full ...
Pixel-level A/D conversion: comparison of two charge
... by the illumination, discharges CINT until VINT crosses VTH, then the comparator commands the injection of Q0 at the integration node and the counter (not drawn on the figure) is incremented by one. At the end of integration time, the counter contains the number N. Since the LSB value of the A/D con ...
... by the illumination, discharges CINT until VINT crosses VTH, then the comparator commands the injection of Q0 at the integration node and the counter (not drawn on the figure) is incremented by one. At the end of integration time, the counter contains the number N. Since the LSB value of the A/D con ...
BD9873CP-V5
... This monolithic IC contains P+ isolation and PCB layers between adjacent elements in order to keep them isolated. P/N junctions are formed at the intersection of these P layers with the N layers of other elements to create a variety of parasitic elements. For example, when a resistor and transistor ...
... This monolithic IC contains P+ isolation and PCB layers between adjacent elements in order to keep them isolated. P/N junctions are formed at the intersection of these P layers with the N layers of other elements to create a variety of parasitic elements. For example, when a resistor and transistor ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... switch or a footer switch is used to conserve area and reduce timing penalty caused by voltage drop across sleep transistors. In this paper, consider only footer switch. The logic block in Figure 1 can be as simple as a logic gate. If it is a logic gate in a standard cell library, we call it a power ...
... switch or a footer switch is used to conserve area and reduce timing penalty caused by voltage drop across sleep transistors. In this paper, consider only footer switch. The logic block in Figure 1 can be as simple as a logic gate. If it is a logic gate in a standard cell library, we call it a power ...
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.