Circuits
... potential difference between its terminals is equal to its emf. However, when that device has current through it, the potential difference ...
... potential difference between its terminals is equal to its emf. However, when that device has current through it, the potential difference ...
BDTIC www.BDTIC.com/infineon Wireless Solutions Stabilizing the RF power of
... Radio links operated in the sub-gigahertz ISM bands are usually subjected to significant field-strength level fluctuations at the receive site, even if the RF power, radiated by transmitter antenna would be held at a steady level. This fluctuation is due to multipath propagation, variations of the p ...
... Radio links operated in the sub-gigahertz ISM bands are usually subjected to significant field-strength level fluctuations at the receive site, even if the RF power, radiated by transmitter antenna would be held at a steady level. This fluctuation is due to multipath propagation, variations of the p ...
Action PAK AP4390/AP4391/AP4392 ® DC Input, Dual Channel Isolators
... positive voltages and currents (e.g. 0-5V, 0-10V, 0-1mA and 420mA) or bipolar voltages (-5 to 5V and -10 to 10V). The model number defines the ouput channel ranges as shown in Table 1. The 4-20mA compliance is a powerful 20VDC per channel. All models in the AP4390 series accept bipolar inputs and ea ...
... positive voltages and currents (e.g. 0-5V, 0-10V, 0-1mA and 420mA) or bipolar voltages (-5 to 5V and -10 to 10V). The model number defines the ouput channel ranges as shown in Table 1. The 4-20mA compliance is a powerful 20VDC per channel. All models in the AP4390 series accept bipolar inputs and ea ...
AN14 - Designs for High Performance Voltage-to-Frequency Converters
... The positive input voltage causes A1, the servo amplifier, to swing positive. The 2N3904 current sink pulls current (Trace A, Figure 2) from the varactor diode, serving as an integrated capacitor. A3 unloads the varactor and biases a trigger made up of the ECL gate and its associated components. This ...
... The positive input voltage causes A1, the servo amplifier, to swing positive. The 2N3904 current sink pulls current (Trace A, Figure 2) from the varactor diode, serving as an integrated capacitor. A3 unloads the varactor and biases a trigger made up of the ECL gate and its associated components. This ...
UniOP Local I/O Board UIM05
... 4. Analog Output Configuration The UIM05 Analog Output board has several parameters that have to be properly configured according to the operation mode you desired for each channel. For all the four channels it is required to specify the operating mode; the full-scale limit is fixed to a certain val ...
... 4. Analog Output Configuration The UIM05 Analog Output board has several parameters that have to be properly configured according to the operation mode you desired for each channel. For all the four channels it is required to specify the operating mode; the full-scale limit is fixed to a certain val ...
Discussion #17 - Operational Amplifiers
... Operational Amplifier: originally designed (late 1960’s) to perform mathematical operations (analog computer) Addition Subtraction Integration differentiation Positive power supply (usually +15V) ...
... Operational Amplifier: originally designed (late 1960’s) to perform mathematical operations (analog computer) Addition Subtraction Integration differentiation Positive power supply (usually +15V) ...
... Schematic layout of the high voltage power supply used in ion generator is shown in “Fig.1”. The ac mains supply is connected to an isolation transformer, with 1:1 turn’s ratio. This transformer isolates the high voltage side from the line. The output of isolation transformer is connected to a varia ...
Heathkit of the Month: by Bob Eckweiler, AF6C Heath DX
... tuned to 40M for operation on 40M, 20M and 15M and it is tuned for 20M for operation on 11M and 10M. The output of the buffer is fed to the RF driver stage that uses a 5763 tube. This stage acts as a multiplier when required for a given band. The driver output is coupled to the final amplifier by a ...
... tuned to 40M for operation on 40M, 20M and 15M and it is tuned for 20M for operation on 11M and 10M. The output of the buffer is fed to the RF driver stage that uses a 5763 tube. This stage acts as a multiplier when required for a given band. The driver output is coupled to the final amplifier by a ...
lecture 170 – temperature stable references
... Psuedo-PTAT Currents In developing temperature independent voltages, it is useful to show how to generate PTAT currents. A straight-forward method is to superimpose VPTAT across a resistor as shown: Because R is always dependent on temperature, this current is called a pseudo-PTAT current and is des ...
... Psuedo-PTAT Currents In developing temperature independent voltages, it is useful to show how to generate PTAT currents. A straight-forward method is to superimpose VPTAT across a resistor as shown: Because R is always dependent on temperature, this current is called a pseudo-PTAT current and is des ...
taa4100 four channel class-t digital audio amplifier
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. See the table below for Operating Conditions. Note 2: Supply voltage is limited in AM Mode due to additional power dissipation of output stage when operating in Class B mode. Please note that the TAA4100 is ...
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. See the table below for Operating Conditions. Note 2: Supply voltage is limited in AM Mode due to additional power dissipation of output stage when operating in Class B mode. Please note that the TAA4100 is ...
TS4100,01,02 - Silicon Labs
... triple single-pole/double-throw (SPDT) switch. These switches are unique because they can operate at supply voltages as low as 0.8 V while accepting input signal swings above the supply voltage up to 5.25 V ("Rail-to-Rail Plus"™). The on-resistance variation over the entire signal swing range is les ...
... triple single-pole/double-throw (SPDT) switch. These switches are unique because they can operate at supply voltages as low as 0.8 V while accepting input signal swings above the supply voltage up to 5.25 V ("Rail-to-Rail Plus"™). The on-resistance variation over the entire signal swing range is les ...
EVF
... The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information tha ...
... The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information tha ...
General Description Features
... The MAX16818 pulse-width modulation (PWM) LED driver controller provides high-output-current capability in a compact package with a minimum number of external components. The MAX16818 is suitable for use in synchronous and nonsynchronous step-down (buck) topologies, as well as in boost, buck-boost, ...
... The MAX16818 pulse-width modulation (PWM) LED driver controller provides high-output-current capability in a compact package with a minimum number of external components. The MAX16818 is suitable for use in synchronous and nonsynchronous step-down (buck) topologies, as well as in boost, buck-boost, ...
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.