RC RL RLC 1.0
... • Assemble the circuit of Figure 2. Use a small value of R, say, 47. Be sure to reduce the signal generator frequency to 100 Hz or below so you can see the entire damped oscillation. • Measure the period and calculate the frequency of the oscillations. The period is NOT 0.01 s = 1/100 Hz, the repet ...
... • Assemble the circuit of Figure 2. Use a small value of R, say, 47. Be sure to reduce the signal generator frequency to 100 Hz or below so you can see the entire damped oscillation. • Measure the period and calculate the frequency of the oscillations. The period is NOT 0.01 s = 1/100 Hz, the repet ...
HW16 - University of St. Thomas
... RC01. Consider the circuit at right. The capacitor is initially charged so that the voltage across it is 10 V. The switch is closed at t = 0s. Calculate what R must be so that the capacitor is 90% discharged (10% of the original charge is left) in a) 10 ms, b) 10 s, and c) 10,000 s. RC02. In the c ...
... RC01. Consider the circuit at right. The capacitor is initially charged so that the voltage across it is 10 V. The switch is closed at t = 0s. Calculate what R must be so that the capacitor is 90% discharged (10% of the original charge is left) in a) 10 ms, b) 10 s, and c) 10,000 s. RC02. In the c ...
Battery Chargers - Alpine Power Systems
... Switchmode Chargers: A Switchmode battery charger / power supply is a class of converters that incorporates fully controllable switching power devices, e.g. MOSFETs and IGBTs, and can thus operate at frequencies much higher than line frequencies (few kHz to 100’s of kHz). Unlike SCRs, which are half ...
... Switchmode Chargers: A Switchmode battery charger / power supply is a class of converters that incorporates fully controllable switching power devices, e.g. MOSFETs and IGBTs, and can thus operate at frequencies much higher than line frequencies (few kHz to 100’s of kHz). Unlike SCRs, which are half ...
5305.SMPS Flyback design equations
... 25. the voltage ripple on the nth output is given as : change in Von = [Ion/(Con*Fs)] + [ Tds peak * V ro * Rcn * Kln] / [ Von + Vfn ] where: Con- capacitance Ron- effective series resistance ESR, of the nth output capacitor. Ion – load current Von- output voltage Vfn – diode forward voltage Key tip ...
... 25. the voltage ripple on the nth output is given as : change in Von = [Ion/(Con*Fs)] + [ Tds peak * V ro * Rcn * Kln] / [ Von + Vfn ] where: Con- capacitance Ron- effective series resistance ESR, of the nth output capacitor. Ion – load current Von- output voltage Vfn – diode forward voltage Key tip ...
Chapter 11 - Inductors
... coil, the total resistance may be significant • The inherent resistance is called the dc resistance or the winding resistance (RW) • When two conductors are placed side-by-side, there is always some capacitance between them • When many turns of wire are placed close together in a coil, there is a wi ...
... coil, the total resistance may be significant • The inherent resistance is called the dc resistance or the winding resistance (RW) • When two conductors are placed side-by-side, there is always some capacitance between them • When many turns of wire are placed close together in a coil, there is a wi ...
Chapter 11
... coil, the total resistance may be significant • The inherent resistance is called the dc resistance or the winding resistance (RW) • When two conductors are placed side-by-side, there is always some capacitance between them • When many turns of wire are placed close together in a coil, there is a wi ...
... coil, the total resistance may be significant • The inherent resistance is called the dc resistance or the winding resistance (RW) • When two conductors are placed side-by-side, there is always some capacitance between them • When many turns of wire are placed close together in a coil, there is a wi ...
AC Direct Off-Line Power Supplies
... voltage peak. On the negative cycle of the AC voltage the diode remains open and the capacitor remains charged. With no load resistor or discharge path for the capacitor, the output is a steady voltage of approximately 169 volts. This assumes the electric outlet voltage is near the nominal value of ...
... voltage peak. On the negative cycle of the AC voltage the diode remains open and the capacitor remains charged. With no load resistor or discharge path for the capacitor, the output is a steady voltage of approximately 169 volts. This assumes the electric outlet voltage is near the nominal value of ...
277 Volt Input to 12 Volt Single Feed Output 300
... - To reduce the risk of fire and burns, do not install this lighting system where the insulated open bus bar conductors can be shorted or contact any conductive materials. - To reduce the risk of the system overheating and possibly causing a fire, make sure all the connections are tight. - Do not in ...
... - To reduce the risk of fire and burns, do not install this lighting system where the insulated open bus bar conductors can be shorted or contact any conductive materials. - To reduce the risk of the system overheating and possibly causing a fire, make sure all the connections are tight. - Do not in ...
RFVC1836 数据资料DataSheet下载
... Product Description RFMD's RFVC1836 is a 5V InGaP MMIC VCO with an integrated frequency divider providing additional Fo/2 and Fo/4 outputs. With an Fo frequency range of 10.4GHz to 11.62GHz its monolithic structure provides excellent temperature, shock, and vibration performance. Output power (Fo) i ...
... Product Description RFMD's RFVC1836 is a 5V InGaP MMIC VCO with an integrated frequency divider providing additional Fo/2 and Fo/4 outputs. With an Fo frequency range of 10.4GHz to 11.62GHz its monolithic structure provides excellent temperature, shock, and vibration performance. Output power (Fo) i ...
mt3608 aerosemi
... The MT3608 uses a fixed frequency, peak current mode boost regulator architecture to regulate voltage at the feedback pin. The operation of the MT3608 can be understood by referring to the block diagram of Figure 2. At the start of each oscillator cycle the MOSFET is turned on through the control ci ...
... The MT3608 uses a fixed frequency, peak current mode boost regulator architecture to regulate voltage at the feedback pin. The operation of the MT3608 can be understood by referring to the block diagram of Figure 2. At the start of each oscillator cycle the MOSFET is turned on through the control ci ...
schematic-symbols-page-1
... applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. The doping region determines NPN or PNP the Darlington transistor (often called a Darlington pair) is a compound structure consisting of two bipolar transistors connected in such a way th ...
... applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. The doping region determines NPN or PNP the Darlington transistor (often called a Darlington pair) is a compound structure consisting of two bipolar transistors connected in such a way th ...
ELEC 350L Electronics I Laboratory Fall 2011
... arrow in the circuit symbol). In the circuit shown in Figure 3, if the output of a given op-amp saturates at VPOS, then the node voltage at the top of the LED becomes positive with respect to ground, current flows through the LED, and the LED lights up. Conversely, if the output voltage of the op-am ...
... arrow in the circuit symbol). In the circuit shown in Figure 3, if the output of a given op-amp saturates at VPOS, then the node voltage at the top of the LED becomes positive with respect to ground, current flows through the LED, and the LED lights up. Conversely, if the output voltage of the op-am ...
Electromagnetic Pulse Generator
... this phenomenon and create it. The goal of an electromagnetic pulse is for all electronics near the center of the blast to become damaged destroyed. Any design will require constraints. For the sake of a research project for school, I have limited the effective range of my pulse generator to two fee ...
... this phenomenon and create it. The goal of an electromagnetic pulse is for all electronics near the center of the blast to become damaged destroyed. Any design will require constraints. For the sake of a research project for school, I have limited the effective range of my pulse generator to two fee ...
Heating in Aluminum Electrolytic Strobe and Photoflash Capacitors
... Strobe capacitors are required to operate at high repetition rates and must therefore exhibit low Strobe, Photoflash, and High Ripple Voltage power loss and high stability for long life ratings, > 10 million shots. This is accomplished by using The previous model for capacitor dissipation as- a low ...
... Strobe capacitors are required to operate at high repetition rates and must therefore exhibit low Strobe, Photoflash, and High Ripple Voltage power loss and high stability for long life ratings, > 10 million shots. This is accomplished by using The previous model for capacitor dissipation as- a low ...
Electronic Troubleshooting
... Filter Capacitors • Used to smooth the pulses from a rectifier Circuit • On the second and following pulses • Key aspects of the resulting output voltage • It still has pulses, but they are smaller than before the Cap • The pulses alternate plus and minus around an average output voltage (Vave) • T ...
... Filter Capacitors • Used to smooth the pulses from a rectifier Circuit • On the second and following pulses • Key aspects of the resulting output voltage • It still has pulses, but they are smaller than before the Cap • The pulses alternate plus and minus around an average output voltage (Vave) • T ...
A Wide Tuning Range Voltage-Controlled Ring Oscillator dedicated
... are relatively slow which avoid the divider to work properly. A driving circuit is used which consists of a set of inverters with their size being doubled one by one to increase their driving ability. The inverters after the flipflop are used for the same purpose. Figure 8(a) shows the symmetric tra ...
... are relatively slow which avoid the divider to work properly. A driving circuit is used which consists of a set of inverters with their size being doubled one by one to increase their driving ability. The inverters after the flipflop are used for the same purpose. Figure 8(a) shows the symmetric tra ...
Approval Installation for 5700 Transmitter ATEX Zone 2
... 5.1 The permissible ambient temperature range is -40°C to +65°C. The use of the transmitter at an ambient temperature lower than - 20 °C is only admissible, if the cables are suitable and the cable entries resp. blanking plugs are certified for that temperature and use. 5.2 For use in explosive atmo ...
... 5.1 The permissible ambient temperature range is -40°C to +65°C. The use of the transmitter at an ambient temperature lower than - 20 °C is only admissible, if the cables are suitable and the cable entries resp. blanking plugs are certified for that temperature and use. 5.2 For use in explosive atmo ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""