Lecture 04 - people.vcu.edu
... TTL differences from CMOS • Asymmetric input and output characteristics. • Inputs source significant current in the LOW state, leakage current in the HIGH state. • Output can handle much more current in the LOW state (saturated transistor). • Output can source only limited current in the HIGH state ...
... TTL differences from CMOS • Asymmetric input and output characteristics. • Inputs source significant current in the LOW state, leakage current in the HIGH state. • Output can handle much more current in the LOW state (saturated transistor). • Output can source only limited current in the HIGH state ...
Electronics 3 Class 16 Before the availability of high power
... Except for some special small motors the slip of the motor would become excessive current would be too high and control would become unstable. Variable frequency speed control - Frequency control can be done in two ways. o Inverter AC signal is rectified to DC DC voltage is selected in a sequenc ...
... Except for some special small motors the slip of the motor would become excessive current would be too high and control would become unstable. Variable frequency speed control - Frequency control can be done in two ways. o Inverter AC signal is rectified to DC DC voltage is selected in a sequenc ...
Electronics 101
... • There is no general rule here, but always think about those factors: • If you use PWM, forget about relays • Some MOSFET require a Gate voltage higher than logic power supplies • Old power BJT transistors have really low gain (can be as low as 10). In that case, the base current is non negligible. ...
... • There is no general rule here, but always think about those factors: • If you use PWM, forget about relays • Some MOSFET require a Gate voltage higher than logic power supplies • Old power BJT transistors have really low gain (can be as low as 10). In that case, the base current is non negligible. ...
ZXTN2007G 30V NPN MEDIUM POWER LOW SATURATION TRANSISTOR IN SOT223 SUMMARY BV
... Fax: (49) 89 45 49 49 49 [email protected] ...
... Fax: (49) 89 45 49 49 49 [email protected] ...
DC1902B – LT4320 Ideal Diode Bridge Controller
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
This wiring diagram
... As with any wiring, voltage and current loss will occur as home run lengths increase and LED fixtures get further away from the power supply. The gauge of wire used plays a major role in the loss prevention. The further you go the thicker the wire should be. Never use smaller wire than 18 awg. The a ...
... As with any wiring, voltage and current loss will occur as home run lengths increase and LED fixtures get further away from the power supply. The gauge of wire used plays a major role in the loss prevention. The further you go the thicker the wire should be. Never use smaller wire than 18 awg. The a ...
how do metal oxide varistors work
... products: 20mm, 32mm and 40mm diameter MOVs are most commonly used. Does MOV size make a difference, and if so, what size delivers the best performance? What is an MOV? MOVs are non-linear bi-polar resistors which have a very high resistance (can be modeled as an open circuit) to the normal 60Hz sin ...
... products: 20mm, 32mm and 40mm diameter MOVs are most commonly used. Does MOV size make a difference, and if so, what size delivers the best performance? What is an MOV? MOVs are non-linear bi-polar resistors which have a very high resistance (can be modeled as an open circuit) to the normal 60Hz sin ...
RB715Z
... (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger ...
... (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger ...
- Krest Technology
... In universal-input PFC applications, the capability of providing both step-up and stepdown conversion is attractive because the output dc voltage can be set to any value. However, conventional single-switch buck-boost topologies, including the buck-boost, fly back, SEPIC, and Cuk converters have gre ...
... In universal-input PFC applications, the capability of providing both step-up and stepdown conversion is attractive because the output dc voltage can be set to any value. However, conventional single-switch buck-boost topologies, including the buck-boost, fly back, SEPIC, and Cuk converters have gre ...
Voltage drop in cables
... Ex 1: A load of 15.5A at a terminal voltage of 455V is supplied through cables of total resistance 0.32Ω. Calculate: i. The voltage at the supply end (459.96V) ii. The total power supplied (7129W) iii. The power lost in the cables. (76.88W) Efficiency ή (nita) Efficiency is a ratio between output qu ...
... Ex 1: A load of 15.5A at a terminal voltage of 455V is supplied through cables of total resistance 0.32Ω. Calculate: i. The voltage at the supply end (459.96V) ii. The total power supplied (7129W) iii. The power lost in the cables. (76.88W) Efficiency ή (nita) Efficiency is a ratio between output qu ...
Make an ioniser.
... lamp lit. The speed at which the lamp flashes is thus directly proportional to the current flow. The power consumption of an ioniser like this is so low that it can be virtually considered as being zero. Remember that capacitors store charge and in this case it is at a high voltage. The circuit will ...
... lamp lit. The speed at which the lamp flashes is thus directly proportional to the current flow. The power consumption of an ioniser like this is so low that it can be virtually considered as being zero. Remember that capacitors store charge and in this case it is at a high voltage. The circuit will ...
DE-SWADJ3 - Dimension Engineering
... The DE-SWADJ 3 is designed to be the easiest possible way to utilize the benefits of switch-mode power when you need an unusual or easily changed voltage. The DESWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 3v to 13v with no external ci ...
... The DE-SWADJ 3 is designed to be the easiest possible way to utilize the benefits of switch-mode power when you need an unusual or easily changed voltage. The DESWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 3v to 13v with no external ci ...
Mass 24/25-2
... Mass battery chargers are designed for the toughest conditions for professional, semi-professional and recreational purposes. Even under the most extreme conditions the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary. The sustainability and techn ...
... Mass battery chargers are designed for the toughest conditions for professional, semi-professional and recreational purposes. Even under the most extreme conditions the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary. The sustainability and techn ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.