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TEMPUS ENERGY: POWER QUALITY, HARMONICS 1: The use of
TEMPUS ENERGY: POWER QUALITY, HARMONICS 1: The use of

LM3914 Dot/Bar Display Driver (Rev. B)
LM3914 Dot/Bar Display Driver (Rev. B)

MAX15059 76V, 300mW Boost Converter and Current Monitor for APD Bias Applications
MAX15059 76V, 300mW Boost Converter and Current Monitor for APD Bias Applications

... 16-Pin TQFN-EP (derate 20.8mW/NC above +70NC).....1666.7mW ...
LM111/LM211/LM311 Voltage Comparator
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... Note 4: This rating applies for ± 15 supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. Note 5: The maximum junction temperature of the LM111 is 150 ...
Diode model with reverse recovery
Diode model with reverse recovery

... The peak reverse current is not given in this datasheet. But it can be easily calculated from the time ta and the current slope di/dt as: Irm = di/dt * ta = 100e6 * 20e-9 = 2 A Some datasheet may not provide ta and tb, but trr and peak reverse current Irm directly, in which case no calculation is ne ...
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... initial state of the shift register on power up, it reaches state 0001 within four clock ticks. Therefore, an explicit reset signal is required only if it is necessary to ensure that the counter starts up synchronously with other devices in the system or to provide a known starting point in simulati ...
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... 1. Build a simple series circuit that consists of 6 pieces of wire, 1 light bulb, and 1 battery (voltage source). In order to complete the circuit, the red circles at the end of each must overlap. Please note that the light bulb also has TWO circles. Your circuit is complete and working when the lig ...
EE2003 Circuit Theory
EE2003 Circuit Theory

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... propagation delay time. The PX3517 is also capable of driving two external MOSFETs into the OFF state. When the PWM signal level enters the shut down window or tri-state (typically between 1.2V and 2V), after the shut down hold off time has expired, both MOSFETs are switched off. This feature is use ...
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Monolithic 2-channel power management for high

... able to provide 3.3 V fixed output voltage up to 700 mA load, and one step-up converter to provide the power supply needed for the blue laser in applications where only 5 V input voltage is available. The step-up output voltage is adjustable in the range from 6.5 V to 14 V, with current capability u ...
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... magnitude of the system charging capacitance. That means it is set up so that the charging current will be less than the ground return current through the neutral resistor. A 480 V line-to-line system will usually have charging currents of up to 2 A [5]. This means the grounding resistance should al ...
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... By controlling the base current, the collector current can be controlled and thus make the BJT acts like a switch. Ideally, as soon as the base current exceeds the threshold value IB(sat) the BJT should saturate. But, practically it does not happen because of the capacitive effect of transistor The ...
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... 5. In no event shall Hitachi be liable for any failure in a semiconductor device or any secondary damage resulting from use at a value exceeding the absolute maximum rating. 6. No license is granted by this data sheets under any patents or other rights of any third party or Hitachi Power Semiconduct ...
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Performance Optimization of Induction Motors During Voltage

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... Buck Controller for High-Current Applications The MAX15034 two-phase, configurable single- or dualoutput buck controller has an input voltage range of 4.75V to 5.5V or 5V to 28V. A mode select input allows for a dual-output supply or connecting two phases together for a single-output, high-current s ...
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... The batteries in the circuits described above act very much like the voltage sources supplied to your home by the electric company, except that the batteries deliver DC and the electric company delivers AC. This voltage supplies the energy needed to power the electrical devices in your home. The bul ...
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TRIAC



TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.
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