Aalborg Universitet Control and Protection Cooperation Strategy for Voltage Instability
... “b” along the curve “A” to gain temporary equilibrium. After that the P-V characteristics of the system load will change due to load restoration dynamic by LTC and other system auto regulation actions, for example, from curve A to curve B and C with tap changer ratio changing from r1 to r2 and r3. T ...
... “b” along the curve “A” to gain temporary equilibrium. After that the P-V characteristics of the system load will change due to load restoration dynamic by LTC and other system auto regulation actions, for example, from curve A to curve B and C with tap changer ratio changing from r1 to r2 and r3. T ...
LTC2921/LTC2922 - Power Supply Tracker with Input Monitors
... The integrated N-channel switches of the LTC2921/ LTC2922 automatically compensate for the voltage drops caused by the RDS(ON) of the external load-control MOSFET switches. This is accomplished by modifying the normal feedback path of each power supply that is controlled by the LTC2921/LTC2922. When ...
... The integrated N-channel switches of the LTC2921/ LTC2922 automatically compensate for the voltage drops caused by the RDS(ON) of the external load-control MOSFET switches. This is accomplished by modifying the normal feedback path of each power supply that is controlled by the LTC2921/LTC2922. When ...
36-W, Universal Input, >90% Efficiency, Dual Output, Auxiliary
... The ATL431 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges. The output voltage can be set to any value between VREF (approximately 2.5 V) and 36 V, with two external resistors. These de ...
... The ATL431 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges. The output voltage can be set to any value between VREF (approximately 2.5 V) and 36 V, with two external resistors. These de ...
Auto-Electric Basic Technology - Part 2
... Such a relay can be used for example to connect spot light and fog light over it to change automatically in connection with the dim light/bright light. Why there is a need to use relays? The reason to use in several cases a relay is given by a higher current flow in some circuits like for double hor ...
... Such a relay can be used for example to connect spot light and fog light over it to change automatically in connection with the dim light/bright light. Why there is a need to use relays? The reason to use in several cases a relay is given by a higher current flow in some circuits like for double hor ...
PTH08T240W,
... The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a tolerance of 1% with 100 ppm/C or better temperature stability. A low-leakage (<100 nA), open-drain device, such as MOSFET or voltage supervisor IC, is recommende ...
... The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a tolerance of 1% with 100 ppm/C or better temperature stability. A low-leakage (<100 nA), open-drain device, such as MOSFET or voltage supervisor IC, is recommende ...
LT3952 - 60V LED Driver with 4A Switch Current
... The input current sense amplifier reduces the switching current in the case of an overload. VC is reduced when the IVINP-IVINN voltage exceeds the 60mV built-in potential. Tie IVINP-IVINN across an external sense resistor to set auxiliary current limit. If unused, tie to VIN. IVINP (Pin 6): Auxiliar ...
... The input current sense amplifier reduces the switching current in the case of an overload. VC is reduced when the IVINP-IVINN voltage exceeds the 60mV built-in potential. Tie IVINP-IVINN across an external sense resistor to set auxiliary current limit. If unused, tie to VIN. IVINP (Pin 6): Auxiliar ...
PTH08T220W,
... the 2nd generation of the popular PTH series power modules and include a reduced footprint and improved features. The PTH08T221W is optimized to be used with all ceramic capacitors. Operating from an input voltage range of 4.5 V to 14 V, the PTH08T220/221W requires a single resistor to set the outpu ...
... the 2nd generation of the popular PTH series power modules and include a reduced footprint and improved features. The PTH08T221W is optimized to be used with all ceramic capacitors. Operating from an input voltage range of 4.5 V to 14 V, the PTH08T220/221W requires a single resistor to set the outpu ...
AD5220 Data Sheet
... Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic. See Figure 29 test ...
... Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic. See Figure 29 test ...
Click Here (.doc)
... This experiment had us use the NPN bipolar junction transistor. We used that transistor and measured current and voltage of the transistor using the DMM and an oscilloscope. We also learned how to bias the transistor and have it act as an amplifier in a circuit. Overall this experiment has 21 steps ...
... This experiment had us use the NPN bipolar junction transistor. We used that transistor and measured current and voltage of the transistor using the DMM and an oscilloscope. We also learned how to bias the transistor and have it act as an amplifier in a circuit. Overall this experiment has 21 steps ...
Aalborg Universitet
... synchronous machine. However, the price to pay is that the power sharing is obtained through voltage and frequency deviations of the system [11], [12]. Thus, secondary controllers are proposed in order to reduce those deviations, like those in large electric power systems [1]. Hence, the MG can oper ...
... synchronous machine. However, the price to pay is that the power sharing is obtained through voltage and frequency deviations of the system [11], [12]. Thus, secondary controllers are proposed in order to reduce those deviations, like those in large electric power systems [1]. Hence, the MG can oper ...
Average Current Mode Control of Switching Power Supplies
... The gain-bandwidth characteristic of the current loop can be tailored for optimum performance by the compensation network around the CA. Compared with peak current mode control, the current loop gain crossover frequency, f c, can be made approximately the same, but the gain will be much greater at l ...
... The gain-bandwidth characteristic of the current loop can be tailored for optimum performance by the compensation network around the CA. Compared with peak current mode control, the current loop gain crossover frequency, f c, can be made approximately the same, but the gain will be much greater at l ...
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 ...
Maxim Integrated MAX14870 DC motor driver datasheet
... The MAX14870/MAX14872 motor drivers provide a small, low-power and simple solution for driving and controlling brushed DC motors and relays with voltages between 4.5V and 36V. Very low driver on-resistance reduces power dissipation. These drivers feature a charge-pump-less design for reduced externa ...
... The MAX14870/MAX14872 motor drivers provide a small, low-power and simple solution for driving and controlling brushed DC motors and relays with voltages between 4.5V and 36V. Very low driver on-resistance reduces power dissipation. These drivers feature a charge-pump-less design for reduced externa ...
SEL-710 Motor Protection Relay
... every fault. Decide how much detail is necessary when you request an event report (e.g., 1/4-cycle or 1/16-cycle resolution and filtered or raw analog data). The relay stores as many as 19 of the most recent 64-cycle event reports or 77 of the most recent 15-cycle event reports in nonvolatile memory ...
... every fault. Decide how much detail is necessary when you request an event report (e.g., 1/4-cycle or 1/16-cycle resolution and filtered or raw analog data). The relay stores as many as 19 of the most recent 64-cycle event reports or 77 of the most recent 15-cycle event reports in nonvolatile memory ...
VPhase VX1 Technical Specification
... When household electricity consumption exceeds the continuous active region the VX1 will regulate voltage for short durations in the “short term active region”. The exact duration of operation depends upon many factors including ambient conditions, previous load conditions and the level of power con ...
... When household electricity consumption exceeds the continuous active region the VX1 will regulate voltage for short durations in the “short term active region”. The exact duration of operation depends upon many factors including ambient conditions, previous load conditions and the level of power con ...
RSB6.8CS
... No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products" ...
... No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products" ...
PDF
... Inverters can be broadly categorized into two types: 1. Voltage Source Inverters VSI 2. Current Source Inverters CSI GenerallyInverters can be single-phase or three-phase in nature, they are employed depending upon their low power and high power rating for variety of applications. Each Inverter type ...
... Inverters can be broadly categorized into two types: 1. Voltage Source Inverters VSI 2. Current Source Inverters CSI GenerallyInverters can be single-phase or three-phase in nature, they are employed depending upon their low power and high power rating for variety of applications. Each Inverter type ...
Fairchild’s Process Enhancements Eliminate the CMOS SCR Latch-Up Problem In 74HC Logic
... CMOS IC’s, it is first useful to review the basic static operation of the discrete SCR, and then apply it to the CMOS SCR. There are two basic trigger methods for this SCR. One is turning on the SCR by forcing current into its gate, and the second is by placing a large voltage across its anode and c ...
... CMOS IC’s, it is first useful to review the basic static operation of the discrete SCR, and then apply it to the CMOS SCR. There are two basic trigger methods for this SCR. One is turning on the SCR by forcing current into its gate, and the second is by placing a large voltage across its anode and c ...
Design and Simulation of Active Power and Power Angle
... Let us represent a vector VSer1 responsible to compensate the load reactive power utilizing PAC concept and vector VSer2 responsible to compensate the sag on the system using active power control approach. Thus, for simultaneous compensation as noticed from Fig. 4, the series inverter should now sup ...
... Let us represent a vector VSer1 responsible to compensate the load reactive power utilizing PAC concept and vector VSer2 responsible to compensate the sag on the system using active power control approach. Thus, for simultaneous compensation as noticed from Fig. 4, the series inverter should now sup ...
Speed-up charge pump circuit to improve lock time for integer
... loop ?lter 13 composed of a capacitor 27 to ground With a series connected resistor 29 and capacitor 25 in parallel thereWith. The ?lter 13 is coupled to the VCO 7 to control the output frequency of the VCO and drive the output of the VCO to the desired and correct frequency. In operation, it is oft ...
... loop ?lter 13 composed of a capacitor 27 to ground With a series connected resistor 29 and capacitor 25 in parallel thereWith. The ?lter 13 is coupled to the VCO 7 to control the output frequency of the VCO and drive the output of the VCO to the desired and correct frequency. In operation, it is oft ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.