MAX8570–MAX8575 High-Efficiency LCD Boost with True Shutdown General Description
... The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range ...
... The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output. A unique control scheme provides the highest efficiency over a wide range ...
BandGap reference circuits
... and also to be implemented without modification of the fabrication process. An important part in the design of analog integrated circuits is to create reference voltages and currents with well defined values. To accomplish this on-chip, Bandgap reference circuits are commonly used. These circuits al ...
... and also to be implemented without modification of the fabrication process. An important part in the design of analog integrated circuits is to create reference voltages and currents with well defined values. To accomplish this on-chip, Bandgap reference circuits are commonly used. These circuits al ...
Tech Brief 3 - pro dg systems
... power the voltage (VRMS ) decreases and the current (I RMS ) increases. This may appear to be a simple concept but in reality it is something that many commercial grade amplifiers do not adequately address. That’s because delivering high voltage for high impedance systems and high current for low im ...
... power the voltage (VRMS ) decreases and the current (I RMS ) increases. This may appear to be a simple concept but in reality it is something that many commercial grade amplifiers do not adequately address. That’s because delivering high voltage for high impedance systems and high current for low im ...
An improved transformerless grid connected photovoltaic inverter
... (1) the inverter should not have any leakage current and (2) achieve high efficiency over a wide load range. In order to obtain these advantages, an improved single-phase transformerless gridtied PV inverter topology is proposed in this paper. The main features of the proposed improved inverter are: ...
... (1) the inverter should not have any leakage current and (2) achieve high efficiency over a wide load range. In order to obtain these advantages, an improved single-phase transformerless gridtied PV inverter topology is proposed in this paper. The main features of the proposed improved inverter are: ...
MAX1744/MAX1745 High-Voltage, Step-Down DC-DC Controllers in µMAX General Description
... improved efficiency. The MAX1744/MAX1745 automatically switch from PWM operation at medium and heavy loads to pulse-skipping operation at light loads to improve light-load efficiency. The low 90μA quiescent current further optimizes these parts for applications where low input current is critical. O ...
... improved efficiency. The MAX1744/MAX1745 automatically switch from PWM operation at medium and heavy loads to pulse-skipping operation at light loads to improve light-load efficiency. The low 90μA quiescent current further optimizes these parts for applications where low input current is critical. O ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
... operation, control and stability maintenance standpoints when they meet ever-increasing load demand [1]. Voltage stability is concerned with the ability of a power system to maintain acceptable voltage at all buses in the system under normal conditions and after being subjected to a disturbance. A s ...
... operation, control and stability maintenance standpoints when they meet ever-increasing load demand [1]. Voltage stability is concerned with the ability of a power system to maintain acceptable voltage at all buses in the system under normal conditions and after being subjected to a disturbance. A s ...
TROUBLESHOOTING AND SERVICE INFORMATION
... removed, the diodes must be checked. To test each diode without disconnecting it from the circuit, use a 12-volt battery and a 45-watt light bulb (automotive type) as shown in illustration 950204. The light should turn on in one direction, as shown. If you cannot test the diodes as previously indica ...
... removed, the diodes must be checked. To test each diode without disconnecting it from the circuit, use a 12-volt battery and a 45-watt light bulb (automotive type) as shown in illustration 950204. The light should turn on in one direction, as shown. If you cannot test the diodes as previously indica ...
Under Frequency Relay Setting for Tie Line and Load Shedding of
... Control system design • For phase shift control and with the lossless snubbing capacitor, the ZVS can be achieved in the leading leg for all the load conditions, but can be achieved in the trailing leg only in the case that the inverter operates with a lagging load current. For a RLC series, it mea ...
... Control system design • For phase shift control and with the lossless snubbing capacitor, the ZVS can be achieved in the leading leg for all the load conditions, but can be achieved in the trailing leg only in the case that the inverter operates with a lagging load current. For a RLC series, it mea ...
FAN23SV65 TinyBuck™ 15 A Integrated Synchronous Buck Regulator F AN2
... The FAN23SV65 utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. This device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency whe ...
... The FAN23SV65 utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. This device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency whe ...
chapter 5 active power compensation of statcom with energy storage
... energy storage methods. Depending on the power conversion unit’s control loop and switching characteristics, the SMES device can respond very rapidly (MWs/ mili-seconds) to power demands from maximum charge to maximum discharge. Power is available almost instantaneously and very high power output ca ...
... energy storage methods. Depending on the power conversion unit’s control loop and switching characteristics, the SMES device can respond very rapidly (MWs/ mili-seconds) to power demands from maximum charge to maximum discharge. Power is available almost instantaneously and very high power output ca ...
dl 2612 scr with turn off circuit
... It must be possible to couple this item with other electrical machines through a hub and spider elastic gear ring in polyurethane. It must be supplied with a hooked module with safety terminals for the electrical connection. The module must show a silk-screened diagram of the electrical circuits of ...
... It must be possible to couple this item with other electrical machines through a hub and spider elastic gear ring in polyurethane. It must be supplied with a hooked module with safety terminals for the electrical connection. The module must show a silk-screened diagram of the electrical circuits of ...
EVS-05-04e
... "On-board isolation resistance monitoring system" means the device which monitors the isolation resistance between the high voltage buses and the electrical chassis. (no definition) "Passenger compartment (for electric safety assessment)" means the space for occupant accommodation, bounded by the ro ...
... "On-board isolation resistance monitoring system" means the device which monitors the isolation resistance between the high voltage buses and the electrical chassis. (no definition) "Passenger compartment (for electric safety assessment)" means the space for occupant accommodation, bounded by the ro ...
TLV7256 - Texas Instruments
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
TPS7B4250-Q1 Pin FMEA
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
ZXLD1320 Buck mode DC-DC converter for LED driving with Description
... increased. The control loop therefore reduces or increases the energy stored in the coil during each switching cycle, as necessary, to force the LED current to the set value. This results in high accuracy, as no error is needed in the LED current to drive the servo to the required region. The time t ...
... increased. The control loop therefore reduces or increases the energy stored in the coil during each switching cycle, as necessary, to force the LED current to the set value. This results in high accuracy, as no error is needed in the LED current to drive the servo to the required region. The time t ...
Document
... frequency you dial back the Q value; and vice-versa for cutting out a very specific frequency. So in reality I'm just dialing back the resistance in an LCR circuit! ...
... frequency you dial back the Q value; and vice-versa for cutting out a very specific frequency. So in reality I'm just dialing back the resistance in an LCR circuit! ...
paper
... and modified to allow for rail-to-rail operation by adding PMOS devices at the input. Since the termination impedances being used are large, it is critical to minimize any capacitances at the pad interface. This topology is chosen for its high bandwidth per unit input device size and because power i ...
... and modified to allow for rail-to-rail operation by adding PMOS devices at the input. Since the termination impedances being used are large, it is critical to minimize any capacitances at the pad interface. This topology is chosen for its high bandwidth per unit input device size and because power i ...
ADP1612 数据手册DataSheet 下载
... error voltage at COMP. The switch current is internally measured and added to the stabilizing ramp, and the resulting sum is compared to the error voltage at COMP to control the PWM modulator. This current-mode regulation system allows fast transient response, while maintaining a stable output volta ...
... error voltage at COMP. The switch current is internally measured and added to the stabilizing ramp, and the resulting sum is compared to the error voltage at COMP to control the PWM modulator. This current-mode regulation system allows fast transient response, while maintaining a stable output volta ...
Surge protector
A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".