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... increases reversely too, but the magnitude may be smaller than the leakage current. These negative current is used to achieve ZVS of main switch Sw. The absorbed leakage energy in Mode 3 is transferred to the output side and the leakage inductor again. The auxiliary switch ON time determines the cir ...
... increases reversely too, but the magnitude may be smaller than the leakage current. These negative current is used to achieve ZVS of main switch Sw. The absorbed leakage energy in Mode 3 is transferred to the output side and the leakage inductor again. The auxiliary switch ON time determines the cir ...
Ultrasound System Considerations and their Impact
... The step that is needed to go from a mechanical single transducer system to an electronic system can also be most easily explained by examining the Linear Scan in Figure 2. If the single transducer element is divided into many small pieces, then if one excites one element at a time and records the r ...
... The step that is needed to go from a mechanical single transducer system to an electronic system can also be most easily explained by examining the Linear Scan in Figure 2. If the single transducer element is divided into many small pieces, then if one excites one element at a time and records the r ...
Datasheet
... V+ and then use part of that stored charge to generate V-. Because of inherent losses, the magnitude of V- will be smaller than V+ on these older designs. Under lightly loaded conditions the intelligent pump oscillator maximizes efficiency by running only as needed to maintain V+ and V-. Since inter ...
... V+ and then use part of that stored charge to generate V-. Because of inherent losses, the magnitude of V- will be smaller than V+ on these older designs. Under lightly loaded conditions the intelligent pump oscillator maximizes efficiency by running only as needed to maintain V+ and V-. Since inter ...
UC3825 数据资料 dataSheet 下载
... which will double as a maximum duty cycle clamp. The logic is fully Fully Latched Logic with Double Pulse latched to provide jitter free operation and prohibit multiple pulses at Suppression an output. An under-voltage lockout section with 800mV of hysteresis assures low start up current. During und ...
... which will double as a maximum duty cycle clamp. The logic is fully Fully Latched Logic with Double Pulse latched to provide jitter free operation and prohibit multiple pulses at Suppression an output. An under-voltage lockout section with 800mV of hysteresis assures low start up current. During und ...
OPERATING INSTRUCTIONS for Flow Meters of the Series „VHM
... the detection area. The output signals from both pick-ups are then added electronically so that two electrical output pulses are generated for each volume of fluid measured. This volume of fluid is enclosed within the gap between the teeth and the housing, and is transported out when the gear rotate ...
... the detection area. The output signals from both pick-ups are then added electronically so that two electrical output pulses are generated for each volume of fluid measured. This volume of fluid is enclosed within the gap between the teeth and the housing, and is transported out when the gear rotate ...
DLP3010 (Rev. B) - Texas Instruments
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device is not implied at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure above or ...
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device is not implied at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure above or ...
MN101E51/52 Series - Panasonic Semiconductor
... (1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) The technical information described in this bo ...
... (1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) The technical information described in this bo ...
A Reconfigurable Low-Noise Dynamic Comparator with Offset
... differential increasing step voltage is applied to its inputs with the same VCM. The offset voltage is measured when the count of the comparator output is closed to 50% as an increasing step voltage is applied. Moreover, the ΔSTR is implemented with a PMOS voltage variable capacitance with off-chip ...
... differential increasing step voltage is applied to its inputs with the same VCM. The offset voltage is measured when the count of the comparator output is closed to 50% as an increasing step voltage is applied. Moreover, the ΔSTR is implemented with a PMOS voltage variable capacitance with off-chip ...
BU4069UB
... Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles ...
... Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles ...
Eco-mode: Benefits and Risks of Energy-saving Modes
... is normally powered by the bypass path, allowing raw mains power to supply the load, and the UPS inverter is engaged only when the utility mains fails. In eco-mode the UPS inverter operates in a “standby” mode. In principle, this is a simple change in the control software of the UPS. However, the re ...
... is normally powered by the bypass path, allowing raw mains power to supply the load, and the UPS inverter is engaged only when the utility mains fails. In eco-mode the UPS inverter operates in a “standby” mode. In principle, this is a simple change in the control software of the UPS. However, the re ...
FDS6982AS Dual Notebook Power Supply N-Channel PowerTrench SyncFET
... The FDS6982AS is designed to replace two single SO8 MOSFETs and Schottky diode in synchronous DC:DC power supplies that provide various peripheral voltages for notebook computers and other battery powered electronic devices. FDS6982AS contains two unique 30V, N-channel, logic level, PowerTrench MOSF ...
... The FDS6982AS is designed to replace two single SO8 MOSFETs and Schottky diode in synchronous DC:DC power supplies that provide various peripheral voltages for notebook computers and other battery powered electronic devices. FDS6982AS contains two unique 30V, N-channel, logic level, PowerTrench MOSF ...
AP7332
... the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement, the LDO must react very quickly without a large voltage drop or overshoot — a requirement that cannot be ...
... the baseband circuitry into standby mode in between transmit cycles. In baseband circuits, the load often transitions virtually instantaneously from 100µA to 100mA. To meet this load requirement, the LDO must react very quickly without a large voltage drop or overshoot — a requirement that cannot be ...
Preparation of Papers for IUST International Journal of Engineering
... collapse increase faster than delivery of the apparent power and by using local phasors’ magnitudes and angles, a change in apparent power line flow in a time interval is exploited for computation of the voltage collapse criterion. In [18] by means of the singular ...
... collapse increase faster than delivery of the apparent power and by using local phasors’ magnitudes and angles, a change in apparent power line flow in a time interval is exploited for computation of the voltage collapse criterion. In [18] by means of the singular ...
FFPF08H60S 8 A, 600 V, Hyperfast II Diode FFPF08H60 S
... The FFPF08H60S is a hyperfast II diode with soft recovery characteristics. It has the half recovery time of ultrafast diodes and is silicon nitride passivated ionimplanted epitaxial planar construction. These devices are intended to be used as freewheeling/ clamping diodes and diodes in a variety of ...
... The FFPF08H60S is a hyperfast II diode with soft recovery characteristics. It has the half recovery time of ultrafast diodes and is silicon nitride passivated ionimplanted epitaxial planar construction. These devices are intended to be used as freewheeling/ clamping diodes and diodes in a variety of ...
M48T512Y
... RAM. Should the supply voltage decay, the RAM will automatically deselect, write protecting itself when VCC falls between VPFD (max) and VPFD (min). All outputs become high impedance and all inputs are treated as “Don't care.” ...
... RAM. Should the supply voltage decay, the RAM will automatically deselect, write protecting itself when VCC falls between VPFD (max) and VPFD (min). All outputs become high impedance and all inputs are treated as “Don't care.” ...
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.