Equations - Humble ISD
... An AC transmission line transfers energy at the rate Pavg = 5.0 MW from a generating plant to a factory. a) What current irms is present in the line if the transmission voltage Vrms is 120 V? b) If Vrms = 80 kV? c) What is the ratio of the thermal (Joule) energy losses in the line for these two case ...
... An AC transmission line transfers energy at the rate Pavg = 5.0 MW from a generating plant to a factory. a) What current irms is present in the line if the transmission voltage Vrms is 120 V? b) If Vrms = 80 kV? c) What is the ratio of the thermal (Joule) energy losses in the line for these two case ...
1.rf amplifier - ABCelectronique
... the above is a block diagram of the tracking sled servo system. the capacitor across pin (15) and (16) has a time constant to lower the high frequency when TG2 is switched off. the tracking phase compensation peak frequency is inversely proportional to the resistor connected to pin (7) (about 1.2 KH ...
... the above is a block diagram of the tracking sled servo system. the capacitor across pin (15) and (16) has a time constant to lower the high frequency when TG2 is switched off. the tracking phase compensation peak frequency is inversely proportional to the resistor connected to pin (7) (about 1.2 KH ...
Evaluates: MAX8643 MAX8643 Evaluation Kit General Description Features
... Using the REFIN Input The MAX8643 features an external reference input (REFIN). The IC regulates FB to the voltage applied to REFIN. The internal soft-start is not available when using an external reference. A method of soft-start when using an external reference is shown by the use of R3 and C7 in ...
... Using the REFIN Input The MAX8643 features an external reference input (REFIN). The IC regulates FB to the voltage applied to REFIN. The internal soft-start is not available when using an external reference. A method of soft-start when using an external reference is shown by the use of R3 and C7 in ...
Class B Amplifier
... and the construction used to obtain the output current (assumed proportional to the base current) is shown. In the region of small currents (for vB
... and the construction used to obtain the output current (assumed proportional to the base current) is shown. In the region of small currents (for vB
common emitter transistor amplifier
... The object of the DC biasing is to get the voltage at the collector, Vc to be about mid supply so that when a signal is applied to the input, Vc has the potential to swing equal distance in both a positive and negative direction before saturation. So Rb1 & Rb2 are sized to bias the voltage at the ba ...
... The object of the DC biasing is to get the voltage at the collector, Vc to be about mid supply so that when a signal is applied to the input, Vc has the potential to swing equal distance in both a positive and negative direction before saturation. So Rb1 & Rb2 are sized to bias the voltage at the ba ...
Slew Rate
... We know that the output voltage of an amplifier circuit is limited, i.e.: L vout (t ) L During any period of time when the output tries to exceed these limits, the output will saturate, and the signal will be distorted! E.G.: vin (t) ...
... We know that the output voltage of an amplifier circuit is limited, i.e.: L vout (t ) L During any period of time when the output tries to exceed these limits, the output will saturate, and the signal will be distorted! E.G.: vin (t) ...
ADV7128 数据手册DataSheet 下载
... Total Blank Time Factor. This takes into account that the display is blanked for a certain fraction of the total duration of each frame (e.g., 0.8). ...
... Total Blank Time Factor. This takes into account that the display is blanked for a certain fraction of the total duration of each frame (e.g., 0.8). ...
Operational Transconductance Amplifier in 350nm CMOS technology
... Bias circuit is composed of transistors denoted as MB0MB12 in Fig. 1. Reference current is generated using supply independent, self biased, VTH reference. This reference uses the fact that sensitivity of the active device voltage to the power supply change is always less than unity. This is governed ...
... Bias circuit is composed of transistors denoted as MB0MB12 in Fig. 1. Reference current is generated using supply independent, self biased, VTH reference. This reference uses the fact that sensitivity of the active device voltage to the power supply change is always less than unity. This is governed ...
EUP7907A 数据手册DataSheet 下载
... capacitor because its capacitance can vary with temperature. The capacitor type X7R or X5R, which operates over a temperature range of -40℃ to +85℃, will only vary within ±15%. Some large value ceramic capacitors are manufactured with Z5U or T5V temperature characteristics. Their capacitance can dro ...
... capacitor because its capacitance can vary with temperature. The capacitor type X7R or X5R, which operates over a temperature range of -40℃ to +85℃, will only vary within ±15%. Some large value ceramic capacitors are manufactured with Z5U or T5V temperature characteristics. Their capacitance can dro ...
AN15 - Circuitry for Single Cell Operation
... low, biasing Q1 on. Q1’s collector current drives the Q2-Q3 combination, forcing Q2’s emitter (Trace C) to clamp at 1V. The 0.001μF capacitor charges to ground (0.001μF unit’s current waveform is Trace D) via Q5. When the ramp at C1’s positive input goes high enough, C1’s output goes high, cutting o ...
... low, biasing Q1 on. Q1’s collector current drives the Q2-Q3 combination, forcing Q2’s emitter (Trace C) to clamp at 1V. The 0.001μF capacitor charges to ground (0.001μF unit’s current waveform is Trace D) via Q5. When the ramp at C1’s positive input goes high enough, C1’s output goes high, cutting o ...
Transistor–transistor logic
Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. It is called transistor–transistor logic because both the logic gating function (e.g., AND) and the amplifying function are performed by transistors (contrast with RTL and DTL).TTL is notable for being a widespread integrated circuit (IC) family used in many applications such as computers, industrial controls, test equipment and instrumentation, consumer electronics, synthesizers, etc. The designation TTL is sometimes used to mean TTL-compatible logic levels, even when not associated directly with TTL integrated circuits, for example as a label on the inputs and outputs of electronic instruments.After their introduction in integrated circuit form in 1963 by Sylvania, TTL integrated circuits were manufactured by several semiconductor companies, with the 7400 series (also called 74xx) by Texas Instruments becoming particularly popular. TTL manufacturers offered a wide range of logic gate, flip-flops, counters, and other circuits. Several variations from the original bipolar TTL concept were developed, giving circuits with higher speed or lower power dissipation to allow optimization of a design. TTL circuits simplified design of systems compared to earlier logic families, offering superior speed to resistor–transistor logic (RTL) and easier design layout than emitter-coupled logic (ECL). The design of the input and outputs of TTL gates allowed many elements to be interconnected.TTL became the foundation of computers and other digital electronics. Even after much larger scale integrated circuits made multiple-circuit-board processors obsolete, TTL devices still found extensive use as the ""glue"" logic interfacing more densely integrated components. TTL devices were originally made in ceramic and plastic dual-in-line (DIP) packages, and flat-pack form. TTL chips are now also made in surface-mount packages. Successors to the original bipolar TTL logic often are interchangeable in function with the original circuits, but with improved speed or lower power dissipation.