LB11851FA
... ⇒ This IC accepts a signal from a microcontroller and interfaces to external power transistors (PMOS and NMOS) to provide high-efficiency low-power single-phase full-wave drive. • Variable speed input pin (PWMIN) ⇒ PMOS side PWM control NMOS side current regeneration using slow decay is used to achi ...
... ⇒ This IC accepts a signal from a microcontroller and interfaces to external power transistors (PMOS and NMOS) to provide high-efficiency low-power single-phase full-wave drive. • Variable speed input pin (PWMIN) ⇒ PMOS side PWM control NMOS side current regeneration using slow decay is used to achi ...
Derive an efficient dual-rail power supply from USB
... As the output voltage continues to increase under the action of flyback, Q1 is driven even harder, causing its collector voltage to fall. Since the collector is connected to the control input of the 555 timer that is nominally the upper limit above (2VCC/3), this causes the capacitor to charge and ...
... As the output voltage continues to increase under the action of flyback, Q1 is driven even harder, causing its collector voltage to fall. Since the collector is connected to the control input of the 555 timer that is nominally the upper limit above (2VCC/3), this causes the capacitor to charge and ...
Abstract - PG Embedded systems
... Generally, pulse width-modulation technique, hysteresis controller, sliding-mode controller, etc., are used to control the switches of the voltage source inverter (VSI). Recently, a predictive control scheme has found applications in the control of power electronic converters such as single-phase an ...
... Generally, pulse width-modulation technique, hysteresis controller, sliding-mode controller, etc., are used to control the switches of the voltage source inverter (VSI). Recently, a predictive control scheme has found applications in the control of power electronic converters such as single-phase an ...
Now that we know how to make a summing amplifier, ponder over
... Actually, we can amplify the signal only upto a particular Voltage which has to be fed into the op-amp. It can’t amplify the signals beyond that (obvious reason –Energy consideration) Thes voltage is called VSATURATION which is the same VSS as shown in the diagram on the first page. Note: The +Vss i ...
... Actually, we can amplify the signal only upto a particular Voltage which has to be fed into the op-amp. It can’t amplify the signals beyond that (obvious reason –Energy consideration) Thes voltage is called VSATURATION which is the same VSS as shown in the diagram on the first page. Note: The +Vss i ...
Transistor Circuits XIV
... R1 (reduce the current since there is no more split from the parallel consideration of R2 and the transistor). (b) It would not be a good idea as now the transistor becomes a base-biased circuit, which is not temperature independent due to hFE (β) now having its say in the matter. It also means the ...
... R1 (reduce the current since there is no more split from the parallel consideration of R2 and the transistor). (b) It would not be a good idea as now the transistor becomes a base-biased circuit, which is not temperature independent due to hFE (β) now having its say in the matter. It also means the ...
Cascaded Op Amp Circuits
... ensure that the load due to the next stage in the cascade does not saturate the op amp. ...
... ensure that the load due to the next stage in the cascade does not saturate the op amp. ...
Troubleshooting Techniques
... input voltage will never exceed the output, the device will remain in one of its saturated states. ...
... input voltage will never exceed the output, the device will remain in one of its saturated states. ...
Sheet (3) Transformers
... 1) A transformer has turns ratio of 5. If a 100 Ω resistor is connected across the secondary, what is the resistance referred to the primary? If the same resistor is instead connected across the primary, what is its resistance referred to the secondary? 2) The parameters of the equivalent of a trans ...
... 1) A transformer has turns ratio of 5. If a 100 Ω resistor is connected across the secondary, what is the resistance referred to the primary? If the same resistor is instead connected across the primary, what is its resistance referred to the secondary? 2) The parameters of the equivalent of a trans ...
NPN Darlington Transistor TIP122
... NPN Darlington Transistor designed for medium power linear switching applications. In this tutorial we will use a TIP122 transistor, which can power devices up to 100VDC at 5 Amps. This can be used to power devices such as motors, solenoids and fans, where the only necessary operation control operat ...
... NPN Darlington Transistor designed for medium power linear switching applications. In this tutorial we will use a TIP122 transistor, which can power devices up to 100VDC at 5 Amps. This can be used to power devices such as motors, solenoids and fans, where the only necessary operation control operat ...
R - School of Electrical Engineering and Computer Science
... • The A-709 was introduced by Fairchild Semiconductor in 1965. • Since then, a vast array of op-amps with improved characteristics, using both bipolar and MOS technologies, have been designed. • Most op amps are inexpensive (less than a dollar) and available from a wide range of suppliers. • There ...
... • The A-709 was introduced by Fairchild Semiconductor in 1965. • Since then, a vast array of op-amps with improved characteristics, using both bipolar and MOS technologies, have been designed. • Most op amps are inexpensive (less than a dollar) and available from a wide range of suppliers. • There ...
LM7812
... incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey any license under its patent rights nor rights of others. These products are not designed for use in life saving/support appliances or sys ...
... incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey any license under its patent rights nor rights of others. These products are not designed for use in life saving/support appliances or sys ...
15.4.4 GENERALIZATION ON INPUT RESISTANCE * It is obviously
... 15.4.4 G E N E R A L I Z A T I O N O N I N P U T R E S I S T A N C E * It is obviously of some importance to the circuit designer to know whether feedback is going to increase or decrease the effective input resistance of a circuit. We can generalize from the two circuits we have examined to state t ...
... 15.4.4 G E N E R A L I Z A T I O N O N I N P U T R E S I S T A N C E * It is obviously of some importance to the circuit designer to know whether feedback is going to increase or decrease the effective input resistance of a circuit. We can generalize from the two circuits we have examined to state t ...
Demonstration - Faculty Pages
... Discharge of a Capacitor Through a Resistor • In the following circuit, when the switch moves from the battery to the wire connected to ground, the voltage across the capacitor is vc(t) = Vse-t/RC J1 ...
... Discharge of a Capacitor Through a Resistor • In the following circuit, when the switch moves from the battery to the wire connected to ground, the voltage across the capacitor is vc(t) = Vse-t/RC J1 ...
LP Series 400V CE
... • Bypass supply voltage tolerance: +/- 10% (adjustable) • Bypass supply frequency tolerance: +/- 5% (adjustable) • Output filter provides mains filtering and power factor correction from 0.8 to 0.9 (dep. on load) ...
... • Bypass supply voltage tolerance: +/- 10% (adjustable) • Bypass supply frequency tolerance: +/- 5% (adjustable) • Output filter provides mains filtering and power factor correction from 0.8 to 0.9 (dep. on load) ...
LP Series 400V CE
... • Bypass supply voltage tolerance: +/- 10% (adjustable) • Bypass supply frequency tolerance: +/- 5% (adjustable) • Output filter provides mains filtering and power factor correction from 0.8 to 0.9 (dep. on load) ...
... • Bypass supply voltage tolerance: +/- 10% (adjustable) • Bypass supply frequency tolerance: +/- 5% (adjustable) • Output filter provides mains filtering and power factor correction from 0.8 to 0.9 (dep. on load) ...
Schmitt trigger
In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.