10W, Dual Output Power Supply
... 3. U1 is 100 kHz, SOT-223 version of NCP1014 controller. Pin 4 tab should be soldered to copper clad ground plane for best heatsinking. 5. R1 is optional inrush limiter resistor. 6. U2 is Vishay H11A817A optocoupler or equivalent. 7. D1 is Vishay DF06M bridge rectifier (1A, 600V, DIP-4 package) or s ...
... 3. U1 is 100 kHz, SOT-223 version of NCP1014 controller. Pin 4 tab should be soldered to copper clad ground plane for best heatsinking. 5. R1 is optional inrush limiter resistor. 6. U2 is Vishay H11A817A optocoupler or equivalent. 7. D1 is Vishay DF06M bridge rectifier (1A, 600V, DIP-4 package) or s ...
L6920 - STMicroelectronics
... Usually, inductors ranging between 5µH to 40µH satisfy most of the applications. Small value inductors have smaller physical size and guarantee a faster response to load transient but in steady state condition a bigger ripple on output voltage is generated. In fact the output ripple voltage is given ...
... Usually, inductors ranging between 5µH to 40µH satisfy most of the applications. Small value inductors have smaller physical size and guarantee a faster response to load transient but in steady state condition a bigger ripple on output voltage is generated. In fact the output ripple voltage is given ...
7B35 数据手册DataSheet 下载
... operate with a nominal +24 VDC supply, Model 7B35 is mixand-match and hot-swappable with other 7B Series input modules, so it can be inserted or removed from any socket in the same backplane without disturbing system power. The two input pins of Model 7B35 are each fully protected up to 120 V rms. T ...
... operate with a nominal +24 VDC supply, Model 7B35 is mixand-match and hot-swappable with other 7B Series input modules, so it can be inserted or removed from any socket in the same backplane without disturbing system power. The two input pins of Model 7B35 are each fully protected up to 120 V rms. T ...
Log-domain low pass high pass first-order filter
... conventional continuous-time filters and as such a number of log-domain filters have been reported earlier1. The log-domain filters are externally linear but internally highly non-linear. The processing of the signals by transistors in exponentially manner has made log-domain filters attractive. In ...
... conventional continuous-time filters and as such a number of log-domain filters have been reported earlier1. The log-domain filters are externally linear but internally highly non-linear. The processing of the signals by transistors in exponentially manner has made log-domain filters attractive. In ...
Exp_Ohmic Circuit Elements
... Introduction: In general, an electric circuit consists of a group of components such as batteries, lamps, switches, and motors that are connected together by conducting wires. Circuits containing semiconductor devices, such as transistors, integrated circuits, or thermionic devices, such as vacuum t ...
... Introduction: In general, an electric circuit consists of a group of components such as batteries, lamps, switches, and motors that are connected together by conducting wires. Circuits containing semiconductor devices, such as transistors, integrated circuits, or thermionic devices, such as vacuum t ...
CASCADED MULTILEVEL INVERTER WITH SERIES
... required insulated gate bipolar transistor (IGBTs), power diodes, and driver circuits in generating a specific output level are their remarkable disadvantages. The bidirectional power switches have been used in these topologies. Each bidirectional power switch includes two IGBTs, two power diodes, a ...
... required insulated gate bipolar transistor (IGBTs), power diodes, and driver circuits in generating a specific output level are their remarkable disadvantages. The bidirectional power switches have been used in these topologies. Each bidirectional power switch includes two IGBTs, two power diodes, a ...
A 0.8-V 110-nA CMOS current reference circuit using subthreshold
... networks and biomedical implants, power consumption is the most critical design factor to make the lifetime of the system long enough for a practical use [1]. For digital circuits in a mixed-signal chip, subthreshold and nearthreshold circuits, which are intensively studied, can be adopted for low p ...
... networks and biomedical implants, power consumption is the most critical design factor to make the lifetime of the system long enough for a practical use [1]. For digital circuits in a mixed-signal chip, subthreshold and nearthreshold circuits, which are intensively studied, can be adopted for low p ...
Ch 20 Electric Current and Ohm`s Law
... Solution We can use the equation R = R0 (1 + αΔT ) to determine the temperature coefficient of resistivity of the material. Then, by examining Table 20.2, we can determine the type of material used to m ...
... Solution We can use the equation R = R0 (1 + αΔT ) to determine the temperature coefficient of resistivity of the material. Then, by examining Table 20.2, we can determine the type of material used to m ...
1 or 2Ш – Linear AC Power Source
... Short tem overloads to 150% of rated current are permitted. Operating time before thermal shutdown or circuit breaker trip varies from seconds to several minutes depending upon line and temperature conditions. ...
... Short tem overloads to 150% of rated current are permitted. Operating time before thermal shutdown or circuit breaker trip varies from seconds to several minutes depending upon line and temperature conditions. ...
chapter 20: electric current, resistance, and ohm`s law
... Solution We can use the equation R = R0 (1 + αΔT ) to determine the temperature coefficient of resistivity of the material. Then, by examining Table 20.2, we can determine the type of material used to m ...
... Solution We can use the equation R = R0 (1 + αΔT ) to determine the temperature coefficient of resistivity of the material. Then, by examining Table 20.2, we can determine the type of material used to m ...
hood_ss-amp.pdf
... An additional characteristic of the class B output stage is that the current demand of the output transistors increases with the output signal, and this may reduce the output voltage and worsen the smoothing of the power supply, unless this is well designed. Also, because of the increase in current ...
... An additional characteristic of the class B output stage is that the current demand of the output transistors increases with the output signal, and this may reduce the output voltage and worsen the smoothing of the power supply, unless this is well designed. Also, because of the increase in current ...
Special Equipment - newton trasformatori
... Step regulating glass furnaces Transformers & Melting furnaces Transformers These transformers are especially designed to supply electrical power to many kind of furnaces; they are equipped by several secondary sockets to make adjustable the supplying of power to the furnace. With these regulating t ...
... Step regulating glass furnaces Transformers & Melting furnaces Transformers These transformers are especially designed to supply electrical power to many kind of furnaces; they are equipped by several secondary sockets to make adjustable the supplying of power to the furnace. With these regulating t ...
Document
... current lowing through the collector (Ic) and emitter (Ie). Use the equation: Ie = Ib + Ic H.D. Explain how increasing availability of computer power requires society to make choices about acceptable uses of new technologies. Complete a labelled circuit diagram to show how an NPN transistor can be u ...
... current lowing through the collector (Ic) and emitter (Ie). Use the equation: Ie = Ib + Ic H.D. Explain how increasing availability of computer power requires society to make choices about acceptable uses of new technologies. Complete a labelled circuit diagram to show how an NPN transistor can be u ...
MAX1680/MAX1681 125mA, Frequency-Selectable, Switched-Capacitor Voltage Converters _______________General Description
... converters either invert or double the input voltage. They have low output resistance (3.5Ω) and can deliver up to 125mA output current. These devices operate at one of two selectable frequencies: 125kHz/250kHz (MAX1680) and 500kHz/1MHz (MAX1681). This provides the flexibility to optimize capacitor ...
... converters either invert or double the input voltage. They have low output resistance (3.5Ω) and can deliver up to 125mA output current. These devices operate at one of two selectable frequencies: 125kHz/250kHz (MAX1680) and 500kHz/1MHz (MAX1681). This provides the flexibility to optimize capacitor ...
SERIES AND PARALLEL CIRCUITS
... Before we get too deep into this, we need to mention what a node is. It’s nothing fancy, just the electrical junction between two or more components. When a circuit is modeled on a schematic, the nodes are the wires between components. ...
... Before we get too deep into this, we need to mention what a node is. It’s nothing fancy, just the electrical junction between two or more components. When a circuit is modeled on a schematic, the nodes are the wires between components. ...
Solutions - University of California, Berkeley
... d) The logic function in part b annoys your friendly TA (annoyed TA’s give hard problem sets!). Please help me out. I don’t like having too many inversions (the ’) in a logic function. Write the equivalent function with only one ’ in it. Hint: If you don’t understand what I mean, I don’t like multip ...
... d) The logic function in part b annoys your friendly TA (annoyed TA’s give hard problem sets!). Please help me out. I don’t like having too many inversions (the ’) in a logic function. Write the equivalent function with only one ’ in it. Hint: If you don’t understand what I mean, I don’t like multip ...
Unique features of the proposed ZCS scheme - UIC
... Principles of the Proposed ZCS Scheme Implement the pulse-width and pulse-placement modulation (PWM & PPM) scheme to make the switching control more flexible Take advantage of the features of three-phase rectifier to create the zero current condition for Bridge I and zero voltage condition for ...
... Principles of the Proposed ZCS Scheme Implement the pulse-width and pulse-placement modulation (PWM & PPM) scheme to make the switching control more flexible Take advantage of the features of three-phase rectifier to create the zero current condition for Bridge I and zero voltage condition for ...
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.