New Linear Regulators Solve Old Problems
... minimum load is required to maintain regulation. Here, a 5mA load is required at all output voltages to maintain the device in full regulation. The set resistor can add to the system temperature drift. Commercially available surface mount resistors have a wide range of temperature coefficients. Depe ...
... minimum load is required to maintain regulation. Here, a 5mA load is required at all output voltages to maintain the device in full regulation. The set resistor can add to the system temperature drift. Commercially available surface mount resistors have a wide range of temperature coefficients. Depe ...
ADP3605 数据手册DataSheet 下载
... The output capacitor (CO) is alternately charged to the CP voltage when CP is switched in parallel with CO. The ESR of CO introduces steps in the VOUT waveform whenever the charge pump charges CO, which contributes to VOUT ripple. Thus, ceramic or tantalum capacitors are recommended for CO to minimi ...
... The output capacitor (CO) is alternately charged to the CP voltage when CP is switched in parallel with CO. The ESR of CO introduces steps in the VOUT waveform whenever the charge pump charges CO, which contributes to VOUT ripple. Thus, ceramic or tantalum capacitors are recommended for CO to minimi ...
Gird Connection of Distributed Generation
... − Tripping (disconnection) is required, if there are too large variations in the grid frequency or voltage. ...
... − Tripping (disconnection) is required, if there are too large variations in the grid frequency or voltage. ...
A Small, Light-Weight, Low-Power, Multichannel Wireless Neural
... Cockroach and Long Evans rat; in recording from Long Evans rat (Figure 4) electrodes were inserted in the forelimb area of the motor cortex (coordinates AP: 2.5 mm, ML: 2.5 mm from bregma). Anesthesia was maintained through intraperitoneal injections of a mixture of 50 mg/ml ketamine, five mg/ml xyl ...
... Cockroach and Long Evans rat; in recording from Long Evans rat (Figure 4) electrodes were inserted in the forelimb area of the motor cortex (coordinates AP: 2.5 mm, ML: 2.5 mm from bregma). Anesthesia was maintained through intraperitoneal injections of a mixture of 50 mg/ml ketamine, five mg/ml xyl ...
... Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier _______________General Description The MAX1640/MAX1641 CMOS, adjustable-output, switch-mode current sources operate from a +5.5V to +26V input, and are ideal for microprocessor-controlled battery chargers. Charging current, ma ...
MAX17499/MAX17500 Current-Mode PWM Controllers with Programmable Switching Frequency General Description
... UVLO and can be biased directly from a minimum voltage of 9.5V. The switching frequency for the ICs is programmable with an external resistor. The MAX17499A/MAX17500A provide a 50% maximum duty-cycle limit, while the MAX17499B/MAX17500B provide a 75% maximum duty-cycle limit. These devices are avail ...
... UVLO and can be biased directly from a minimum voltage of 9.5V. The switching frequency for the ICs is programmable with an external resistor. The MAX17499A/MAX17500A provide a 50% maximum duty-cycle limit, while the MAX17499B/MAX17500B provide a 75% maximum duty-cycle limit. These devices are avail ...
INA114 数据资料 dataSheet 下载
... current return path, the inputs will float to a potential which exceeds the common-mode range of the INA114 and the input amplifiers will saturate. If the differential source resistance is low, bias current return path can be connected to one input (see thermocouple example in Figure 3). With higher ...
... current return path, the inputs will float to a potential which exceeds the common-mode range of the INA114 and the input amplifiers will saturate. If the differential source resistance is low, bias current return path can be connected to one input (see thermocouple example in Figure 3). With higher ...
Dual Schottky Barrier Diode, 60 V, 1 A
... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
Pre-Lab Work - facstaff.bucknell.edu
... the same time. The ground leads could create a short between two circuit nodes that could destroy one or more components. You should inspect Figure 2 and understand how this can happen before proceeding. Warning #2: Electrolytic capacitors are polarized. The marking on an electrolytic capacitor’s pa ...
... the same time. The ground leads could create a short between two circuit nodes that could destroy one or more components. You should inspect Figure 2 and understand how this can happen before proceeding. Warning #2: Electrolytic capacitors are polarized. The marking on an electrolytic capacitor’s pa ...
Constant Voltage / Constant Current Secondary
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
Heathkit TX-1 - Orange County (California) Amateur Radio Club
... stage operates as a Colpitts crystal oscillator when XTAL operation is selected. RF Driver: The buffer output goes to the 5763 power pentode driver circuit. This stage operates straight through on 80 and 40 meters, as a doubler on 20 and 10 meters and as a tripler on 15 meters. Drive level is contro ...
... stage operates as a Colpitts crystal oscillator when XTAL operation is selected. RF Driver: The buffer output goes to the 5763 power pentode driver circuit. This stage operates straight through on 80 and 40 meters, as a doubler on 20 and 10 meters and as a tripler on 15 meters. Drive level is contro ...
A NOVELL METHOD OF ELECTRONIC TECHNIQUES FOR SOLVING HIGH
... inefficient. It would be an addition about test times of measuring voltage, converting into voltage, calculate new and settling the parameters of DAC. 2.2. Creating a structure of components At the beginning there were ideas of a control-structure. The ideas have a range from one microcontroller for ...
... inefficient. It would be an addition about test times of measuring voltage, converting into voltage, calculate new and settling the parameters of DAC. 2.2. Creating a structure of components At the beginning there were ideas of a control-structure. The ideas have a range from one microcontroller for ...
Module – 3 Unit – 3 Small Signal BJT Amplifiers
... The emitter follower (common collector amplifier) shown in fig. uses a transistor with h-parameters hie = 4.5 kΩ, hfe = 120. Other parameters hoe and hre have negligible effect on amplifier performance. Calculate voltage gain and input impedance of the amplifier. The coupling and by-pass capacitors ...
... The emitter follower (common collector amplifier) shown in fig. uses a transistor with h-parameters hie = 4.5 kΩ, hfe = 120. Other parameters hoe and hre have negligible effect on amplifier performance. Calculate voltage gain and input impedance of the amplifier. The coupling and by-pass capacitors ...
V. Caliskan, D.J. Perreault, T.M. Jahns, and J.G. Kassakian, “Analysis of Three-Phase Rectifiers with Constant-Voltage Loads,” IEEE Transactions on Circuits and Systems – I , Vol. 50, No. 9, Sept. 2003, pp. 1220-1226.
... First, consider the system given in Fig. 1 with the following parameter values: Vo = 14:5 V, Ls = 180 H, Vd = 1 V. Comparisons between analytical and simulated results are shown in Fig. 4(a)–(c). Fig. 4(a) shows the average output current hio i versus the magnitude of the source voltage Vs with the ...
... First, consider the system given in Fig. 1 with the following parameter values: Vo = 14:5 V, Ls = 180 H, Vd = 1 V. Comparisons between analytical and simulated results are shown in Fig. 4(a)–(c). Fig. 4(a) shows the average output current hio i versus the magnitude of the source voltage Vs with the ...
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.