Wheatfield Audio Wheatfield Audio
... Transformer-Less) headphone amplifier. It uses two tubes, each of which has two sections (one for each channel) plus a rectifier tube in the power supply. ...
... Transformer-Less) headphone amplifier. It uses two tubes, each of which has two sections (one for each channel) plus a rectifier tube in the power supply. ...
Evaluates: MAX6469–MAX6476 MAX6470 Evaluation Kit General Description Features
... VOUT can be adjusted by cutting open the trace across resistor R2 and installing feedback resistors R1 and R2. The equation to adjust the output voltage is the following: VOUT = VSET(1 + (R1/R2)) where VSET = 1.23V Resistor R2 must be 50kΩ or less to maintain stability, accuracy, and high-frequency ...
... VOUT can be adjusted by cutting open the trace across resistor R2 and installing feedback resistors R1 and R2. The equation to adjust the output voltage is the following: VOUT = VSET(1 + (R1/R2)) where VSET = 1.23V Resistor R2 must be 50kΩ or less to maintain stability, accuracy, and high-frequency ...
LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier
... behavior, although wideband internal circuitry generally keeps errors to a minimum. The output of the LTC1250 will have small spikes at the clock frequency and its harmonics; these will vary in amplitude with different feedback configurations. Low frequency or band-limited systems should not be affe ...
... behavior, although wideband internal circuitry generally keeps errors to a minimum. The output of the LTC1250 will have small spikes at the clock frequency and its harmonics; these will vary in amplitude with different feedback configurations. Low frequency or band-limited systems should not be affe ...
ZNBG3113
... negative bias voltage is generated on-chip using an internal oscillator. The required value of capacitors CNB and CSUB is 47nF. This generator produces a low current supply of approximately -3 volts. Although this generator is intended purely to bias the external FETs, it can be used to power other ...
... negative bias voltage is generated on-chip using an internal oscillator. The required value of capacitors CNB and CSUB is 47nF. This generator produces a low current supply of approximately -3 volts. Although this generator is intended purely to bias the external FETs, it can be used to power other ...
Modular LED light engine for exterior light fixtures
... The ELE is covered under warranty as long as the temperature at the Tc point does not exceed 85˚C; exceeding this temperature will void all warranties. For additional information, refer to the latest version of the warranty at www.sylvania.com. ...
... The ELE is covered under warranty as long as the temperature at the Tc point does not exceed 85˚C; exceeding this temperature will void all warranties. For additional information, refer to the latest version of the warranty at www.sylvania.com. ...
Module – 1:
... scale, range, and scale span, calibration, Reproducibility and drift, Noise, Accuracy and precision, Significant figures, Linearity, Hysteresis, Threshold, Dead time, Dead zone, Resolution and Loading Effects. ...
... scale, range, and scale span, calibration, Reproducibility and drift, Noise, Accuracy and precision, Significant figures, Linearity, Hysteresis, Threshold, Dead time, Dead zone, Resolution and Loading Effects. ...
1) Compute the transmissivity of a NWTN LCD panel given:
... 26) The multi-level gate voltage is used to eliminate the subpixel voltage drop caused by the charge extraction from the fall of the gate voltage. It does this through injection of charge from the rise of the previous gate line which exactly offsets the charge lost when the current gate line falls. ...
... 26) The multi-level gate voltage is used to eliminate the subpixel voltage drop caused by the charge extraction from the fall of the gate voltage. It does this through injection of charge from the rise of the previous gate line which exactly offsets the charge lost when the current gate line falls. ...
Chapter 1 - Introduction to Electronics
... Figure 1.10 (a) Circuit symbol for amplifier. (b) An amplifier with a common terminal (ground) between the input and output ports. ...
... Figure 1.10 (a) Circuit symbol for amplifier. (b) An amplifier with a common terminal (ground) between the input and output ports. ...
SGM9127 4-Channel, 5th-Order, Standard Definition Video Filter
... The SGM9127 outputs can be DC-coupled or ACcoupled. When input is 0V, the SGM9127 output voltage is 458mV typically. In DC coupling design, one 75Ω resistor is used to connect SGM9127’s output pin with external load directly, and this serial back-termination resistor is used to match the impedance o ...
... The SGM9127 outputs can be DC-coupled or ACcoupled. When input is 0V, the SGM9127 output voltage is 458mV typically. In DC coupling design, one 75Ω resistor is used to connect SGM9127’s output pin with external load directly, and this serial back-termination resistor is used to match the impedance o ...
DS13 SSR for loads up to 2A @ 60Vdc Product Facts
... 4.Transient blocking voltage & electrical system spike tests are performed per MIL-STD-704 (28Vdc systems). 5.To determine the maximum on-resistance at any given junction temperature, multiply on-resistance at 25°C by normalized on-resistance factor from curve (Fig. 4). 6.Overload testing per MIL-R- ...
... 4.Transient blocking voltage & electrical system spike tests are performed per MIL-STD-704 (28Vdc systems). 5.To determine the maximum on-resistance at any given junction temperature, multiply on-resistance at 25°C by normalized on-resistance factor from curve (Fig. 4). 6.Overload testing per MIL-R- ...
Novel current mirrors application in high side current sensing in
... “common return” load connection • Possibility to detect output short-circuit conditions • Possibility to measure output leakage currents ...
... “common return” load connection • Possibility to detect output short-circuit conditions • Possibility to measure output leakage currents ...
78ET-2
... A circuit of resistance 12 ohms and inductive reactance of 20 ohms is connected in parallel with another circuit consisting of a resistor 20 ohms in series with a capacitor of capacitive reactance 15 ohms. Find the total current taken when this combination is connected to a 220 Volt/40 Hz supply, wh ...
... A circuit of resistance 12 ohms and inductive reactance of 20 ohms is connected in parallel with another circuit consisting of a resistor 20 ohms in series with a capacitor of capacitive reactance 15 ohms. Find the total current taken when this combination is connected to a 220 Volt/40 Hz supply, wh ...
Chapter 21
... In an inductor, the source does work against the back emf of the inductor and energy is stored in the inductor, but when the current begins to decrease in the circuit, the energy is returned to the circuit. The power delivered by an AC circuit depends on the phase. Some applications include using ...
... In an inductor, the source does work against the back emf of the inductor and energy is stored in the inductor, but when the current begins to decrease in the circuit, the energy is returned to the circuit. The power delivered by an AC circuit depends on the phase. Some applications include using ...
Exam 2 Solutions
... The parallel combination yields a resistance of 4 Ω and thus the total resistance is 6.0 Ω. The total current is thus 24 / 6.0 = 4 A. To find the current in the 6 Ω branch, first find the voltage across it, which is the same as the voltage across the parallel combination. This voltage is determined ...
... The parallel combination yields a resistance of 4 Ω and thus the total resistance is 6.0 Ω. The total current is thus 24 / 6.0 = 4 A. To find the current in the 6 Ω branch, first find the voltage across it, which is the same as the voltage across the parallel combination. This voltage is determined ...
Inductorless, Dual Output Off
... AC is above HVIN(off). Output voltage (Vunreg) decays during the periods when the switch is off and when the rectified AC is below the output voltage. The amount of decay is determined by the load and the value of C1. Since the switch only conducts with low voltages across it, power dissipation is m ...
... AC is above HVIN(off). Output voltage (Vunreg) decays during the periods when the switch is off and when the rectified AC is below the output voltage. The amount of decay is determined by the load and the value of C1. Since the switch only conducts with low voltages across it, power dissipation is m ...
The uA741 Operational Amplifier
... Q13B, and the resistors R8 and R9. Transistor Q16 acts as an emitter follower giving the second stage a high input resistance. Transistor Q17 is a common-emitter amplifier with a 100-Ώ resistor in the emitter. The load of this amplifier is composed of the output resistance of Q13B. This use of a tra ...
... Q13B, and the resistors R8 and R9. Transistor Q16 acts as an emitter follower giving the second stage a high input resistance. Transistor Q17 is a common-emitter amplifier with a 100-Ώ resistor in the emitter. The load of this amplifier is composed of the output resistance of Q13B. This use of a tra ...
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.