Tip-sample control using quartz tuning forks in
... capacitance[4], photon tunneling[5], and atomic force[1,6]. The last mechanism detects the atomic force between the tip and sample when they are in very close proximity. Quartz tuning forks have been successfully used as force sensors for tip-sample regulation in NSOM[7,8]. Their very high mechanica ...
... capacitance[4], photon tunneling[5], and atomic force[1,6]. The last mechanism detects the atomic force between the tip and sample when they are in very close proximity. Quartz tuning forks have been successfully used as force sensors for tip-sample regulation in NSOM[7,8]. Their very high mechanica ...
MAX8566 High-Efficiency, 10A, PWM Internal-Switch Step-Down Regulator General Description
... to (0.87 x VIN). The IC operates from 2.3V to 3.6V input supplies, making it ideal for point-of-load applications. The total output-voltage set error is less than ±1% over load, line, and temperature. The MAX8566 operates in pulse-width-modulation (PWM) mode with a 250kHz to 2.4MHz switching frequen ...
... to (0.87 x VIN). The IC operates from 2.3V to 3.6V input supplies, making it ideal for point-of-load applications. The total output-voltage set error is less than ±1% over load, line, and temperature. The MAX8566 operates in pulse-width-modulation (PWM) mode with a 250kHz to 2.4MHz switching frequen ...
Rocket-borne Langmuir probe for plasma density irregularities H. S. S. Sinha
... is the mean free path for collisions between electrons and neutrals. Also, the presence of negative ions does not allow the correct estimation of the electron density. Beyond about 85 km altitude, the number density of negative ions is negligible and hence the probe current is essentially proportion ...
... is the mean free path for collisions between electrons and neutrals. Also, the presence of negative ions does not allow the correct estimation of the electron density. Beyond about 85 km altitude, the number density of negative ions is negligible and hence the probe current is essentially proportion ...
Chapter 17: Electricity
... Has this ever happened to you? You walk across a carpet and as you reach for a metal doorknob, you feel an electric shock. Maybe you even see a spark jump between your fingertip and the doorknob. To find out what happened, look at Figure 8. As you walk, electrons are rubbed off the rug by your shoes ...
... Has this ever happened to you? You walk across a carpet and as you reach for a metal doorknob, you feel an electric shock. Maybe you even see a spark jump between your fingertip and the doorknob. To find out what happened, look at Figure 8. As you walk, electrons are rubbed off the rug by your shoes ...
XCR22V10: 5V Zero Power, TotalCMOS, Universal PLD Device
... The signal from the OR array can be fed directly to the output pin (combinatorial function) or latched in the D-type flip-flop (registered function). The D-type flip-flop latches data on the rising edge of the clock and is controlled by the global preset and clear terms. When the synchronous preset ...
... The signal from the OR array can be fed directly to the output pin (combinatorial function) or latched in the D-type flip-flop (registered function). The D-type flip-flop latches data on the rising edge of the clock and is controlled by the global preset and clear terms. When the synchronous preset ...
MM74HC4046 CMOS Phase Lock Loop - Elektronik
... This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive edges of the input signals and is thus independent of signal duty cycle. Phase comparator II ...
... This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive edges of the input signals and is thus independent of signal duty cycle. Phase comparator II ...
MAX9759 3.2W, High-Efficiency, Low-EMI, Filterless, Class D Audio Amplifier General Description
... The MAX9759 mono Class D, audio power amplifier provides Class AB amplifier audio performance with the benefits of Class D efficiency, eliminating the need for a heatsink and extending battery life. The MAX9759 delivers up to 3.2W of continuous power into a 4Ω load while offering greater than 90% ef ...
... The MAX9759 mono Class D, audio power amplifier provides Class AB amplifier audio performance with the benefits of Class D efficiency, eliminating the need for a heatsink and extending battery life. The MAX9759 delivers up to 3.2W of continuous power into a 4Ω load while offering greater than 90% ef ...
A novel large displacement electrostatic actuator: pre
... downward to the substrate. A post-heat treatment process was employed to increase the initial lift height of the PCA to obtain a large actuation stroke. A mathematical model, based on a newly developed modeling approach, is introduced to estimate the static characteristic of the PCA. A PCA was fabri ...
... downward to the substrate. A post-heat treatment process was employed to increase the initial lift height of the PCA to obtain a large actuation stroke. A mathematical model, based on a newly developed modeling approach, is introduced to estimate the static characteristic of the PCA. A PCA was fabri ...
Design and Characterisation of a Metastable Helium Source
... Metastable excited helium states have a long lifetime since the transition to lower state levels is forbidden by dipole selection rules. For this reason and because of their large internal energy, metastable atoms are of fundamental interest in the field of surface and plasma physics [1, 2]. A summa ...
... Metastable excited helium states have a long lifetime since the transition to lower state levels is forbidden by dipole selection rules. For this reason and because of their large internal energy, metastable atoms are of fundamental interest in the field of surface and plasma physics [1, 2]. A summa ...
TPS65950/30/20 32 KHz Oscillator Schematic and PCB Layout
... Figure 2 shows the equivalent circuit of the oscillator with additional required components. The oscillator is based on a CMOS inverter; crystal and phasing capacitors (C1, C2) are connected between input and output of the oscillator to provide the additional phase lag required to satisfy the oscill ...
... Figure 2 shows the equivalent circuit of the oscillator with additional required components. The oscillator is based on a CMOS inverter; crystal and phasing capacitors (C1, C2) are connected between input and output of the oscillator to provide the additional phase lag required to satisfy the oscill ...
Klystron
A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.In the klystron, an electron beam interacts with the radio waves as it passes through resonant cavities, metal boxes along the length of the tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at the other end of the tube. The output signal can be coupled back into the input cavity to make an electronic oscillator to generate radio waves. The gain of klystrons can be high, 60 dB (one million) or more, with output power up to tens of megawatts, but the bandwidth is narrow, usually a few percent although it can be up to 10% in some devices.A reflex klystron is an obsolete type in which the electron beam was reflected back along its path by a high potential electrode, used as an oscillator.The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the suffix -τρον (""tron"") meaning the place where the action happens. The name ""klystron"" was suggested by Hermann Fränkel, a professor in the classics department at Stanford University when the klystron was under development.