Switch_Mode_Converters
... • Average output dc voltage must be controlled to equal a desired level. • Utilizes one or more switches to transform dc from one level to another. • The average output voltage is controlled by controlling the switch on and off durations (ton and toff). • Let’s consider the following switch-mode dc- ...
... • Average output dc voltage must be controlled to equal a desired level. • Utilizes one or more switches to transform dc from one level to another. • The average output voltage is controlled by controlling the switch on and off durations (ton and toff). • Let’s consider the following switch-mode dc- ...
english - KEK Concept GmbH
... Class-leading low voltage drive contributes to greater energy efficiency and performance in compact battery-driven industrial equipment Willich-Münchheide, August 25, 2016 LAPIS Semiconductor, a member of the ROHM group, has announced the development of the ML620130 family of 16bit low power MCUs, o ...
... Class-leading low voltage drive contributes to greater energy efficiency and performance in compact battery-driven industrial equipment Willich-Münchheide, August 25, 2016 LAPIS Semiconductor, a member of the ROHM group, has announced the development of the ML620130 family of 16bit low power MCUs, o ...
audio amplifiers
... These amps dig out musical detail, since the transistor reproduces the entire audio waveform without ever cutting off. As a result the sound is cleaner and more linear; that is, it contains much lower levels of distortion. They are the most accurate of all amps available, but at significant cost to ...
... These amps dig out musical detail, since the transistor reproduces the entire audio waveform without ever cutting off. As a result the sound is cleaner and more linear; that is, it contains much lower levels of distortion. They are the most accurate of all amps available, but at significant cost to ...
Testing LCD displays
... by Volts gives us Amps), assuming a bit less than 100% efficiency. We can’t have any more power at the output than we have at the input. So we can make a good guess that our input current should be around 1.5 Amps (with a little leeway). Sure enough, when we bring one up under power on the bench it ...
... by Volts gives us Amps), assuming a bit less than 100% efficiency. We can’t have any more power at the output than we have at the input. So we can make a good guess that our input current should be around 1.5 Amps (with a little leeway). Sure enough, when we bring one up under power on the bench it ...
91 accracy invetigations.p65
... Combining resistors with the same tolerance should lead to an effective resistance with the same tolerance. It should be noted that these are maximum percentage errors. In practice, some of the errors might well cancel each other. The effective resistance of the combination would probably be closer ...
... Combining resistors with the same tolerance should lead to an effective resistance with the same tolerance. It should be noted that these are maximum percentage errors. In practice, some of the errors might well cancel each other. The effective resistance of the combination would probably be closer ...
6. Know the basic principles of electricity
... Resistance = R The ohm is the unit of resistance, which opposes the flow of current. ...
... Resistance = R The ohm is the unit of resistance, which opposes the flow of current. ...
700924 NEW Differential Probe Capable of Wide-Band, High-Voltage Floating Measurements
... Signals floating from ground Waveform observed on oscilloscope ...
... Signals floating from ground Waveform observed on oscilloscope ...
74VHCT574A Octal D-Type Flip-Flop with 3-STATE Outputs 7 4
... flip-flop with 3-STATE output fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type flipflop is controlled by a clock input (CP) and an Output Enable input (OE) ...
... flip-flop with 3-STATE output fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type flipflop is controlled by a clock input (CP) and an Output Enable input (OE) ...
Application Note
... are several points to keep in mind when designing circuits using them. One of the most important parameters to respect is the devices’ rated limits on rate of change of voltage and current (dV/dt and di/dt). If these are exceeded, the thyristor may be damaged or destroyed. DEFINITIONS Ambient Sound ...
... are several points to keep in mind when designing circuits using them. One of the most important parameters to respect is the devices’ rated limits on rate of change of voltage and current (dV/dt and di/dt). If these are exceeded, the thyristor may be damaged or destroyed. DEFINITIONS Ambient Sound ...
AP Physics 2 Electrical Circuits 2015-16
... Simplifying a Series Circuit • When trying to analyze a series circuit, normally the first step is to reduce the circuit of several resistors to an equivalent circuit of only 1 resistor and 1 power source • For any simplified circuits we will have a/an – Equivalent Voltage (Veq) - How much voltage ...
... Simplifying a Series Circuit • When trying to analyze a series circuit, normally the first step is to reduce the circuit of several resistors to an equivalent circuit of only 1 resistor and 1 power source • For any simplified circuits we will have a/an – Equivalent Voltage (Veq) - How much voltage ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.