Software Design and Hardware Realisation of Single Phase
... Abstract- The electricity produced at power stations has a frequency of 50 Hz which is not always applicable for some electrical equipments. Some electrical devices need variable frequency ranging from one tenth to one third of supply frequency. Some examples are induction motors used in AC traction ...
... Abstract- The electricity produced at power stations has a frequency of 50 Hz which is not always applicable for some electrical equipments. Some electrical devices need variable frequency ranging from one tenth to one third of supply frequency. Some examples are induction motors used in AC traction ...
Document
... by transformer. A compact high frequency transformer is allowed for the transmission. The operation frequency of the two switches in the secondary side of the transformer is low. Thus leads to low switching loss and high efficiency. Low distortion of the output waveform. Simple structure, lower loss ...
... by transformer. A compact high frequency transformer is allowed for the transmission. The operation frequency of the two switches in the secondary side of the transformer is low. Thus leads to low switching loss and high efficiency. Low distortion of the output waveform. Simple structure, lower loss ...
LP3891 0.8A Fast-Response Ultra Low Dropout Linear Regulators
... The bias voltage is monitored by a circuit which prevents the regulator output from turning on if the bias voltage is below approximately 4V. SHUTDOWN OPERATION Pulling down the shutdown (S/D) pin will turn-off the regulator. Pin S/D must be actively terminated through a pull-up resistor (10 kΩ to 1 ...
... The bias voltage is monitored by a circuit which prevents the regulator output from turning on if the bias voltage is below approximately 4V. SHUTDOWN OPERATION Pulling down the shutdown (S/D) pin will turn-off the regulator. Pin S/D must be actively terminated through a pull-up resistor (10 kΩ to 1 ...
Capacitor Self
... feedback path of the LM 741 or if the source impedance is very high (100's of KΩ), then the input resistance should be taken into account in the AC circuit analysis. There are special op-amps with input resistances of 100 MΩ or higher. These op-amps are made for sensors having a very high source res ...
... feedback path of the LM 741 or if the source impedance is very high (100's of KΩ), then the input resistance should be taken into account in the AC circuit analysis. There are special op-amps with input resistances of 100 MΩ or higher. These op-amps are made for sensors having a very high source res ...
debug0
... Know what to expect at each stage Inputs on SSI and MSI logic can be grounded for short time Don't connect unused inputs directly to +5 V CMOS or some TTL Output present then goes away after input probed Open input Learn to recognize proper output levels TTL - 0.4 - 3.5 CMOS - 0.0 - 4.8 If any failu ...
... Know what to expect at each stage Inputs on SSI and MSI logic can be grounded for short time Don't connect unused inputs directly to +5 V CMOS or some TTL Output present then goes away after input probed Open input Learn to recognize proper output levels TTL - 0.4 - 3.5 CMOS - 0.0 - 4.8 If any failu ...
AND8039/D The One−Transistor Forward Converter
... and clearance (distance through air) dimensions. For 110 VAC − 220 VAC applications, this is 3.2 mm between phases, and 8.0 mm between the input and output circuits. This may be difficult determining the off−line−suitability of a core and bobbin from its data sheet. In one−transistor forward convert ...
... and clearance (distance through air) dimensions. For 110 VAC − 220 VAC applications, this is 3.2 mm between phases, and 8.0 mm between the input and output circuits. This may be difficult determining the off−line−suitability of a core and bobbin from its data sheet. In one−transistor forward convert ...
Dura-Bilt5i MV V
... • Altitude above sea level is 0-3300 ft (0-1000 m). 2. An optional bypass cabinet can be integrated into the line up: • For applications up to 2700 hp, add 30 in (762 mm) in width. • For applications greater than 2700 hp, add 72 in (1829 mm) in width. • Bypass cabinet mounts to left of drive for fra ...
... • Altitude above sea level is 0-3300 ft (0-1000 m). 2. An optional bypass cabinet can be integrated into the line up: • For applications up to 2700 hp, add 30 in (762 mm) in width. • For applications greater than 2700 hp, add 72 in (1829 mm) in width. • Bypass cabinet mounts to left of drive for fra ...
RT8030 - Richtek Technology
... the main switch to remain on for more than one cycle eventually reaching 100% duty cycle. The output voltage will then be determined by the input voltage minus the voltage drop across the internal P-MOSFET and the inductor. Low Supply Operation The RT8030 is designed to operate down to an input supp ...
... the main switch to remain on for more than one cycle eventually reaching 100% duty cycle. The output voltage will then be determined by the input voltage minus the voltage drop across the internal P-MOSFET and the inductor. Low Supply Operation The RT8030 is designed to operate down to an input supp ...
typical performance curves (cont)
... The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specific ...
... The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specific ...
Chapter 4.10 - Other Analog Circuits
... operation, the time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free–running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The output structure can source or sink up to 200 m ...
... operation, the time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free–running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The output structure can source or sink up to 200 m ...
ADP3338 数据手册DataSheet 下载
... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
TSM931 - Silicon Labs
... As a result of circuit noise or unintended parasitic feedback, many analog comparators often break into oscillation within their linear region of operation especially when the applied differential input voltage approaches 0V (zero volt). Externally-introduced hysteresis is a well-established techniq ...
... As a result of circuit noise or unintended parasitic feedback, many analog comparators often break into oscillation within their linear region of operation especially when the applied differential input voltage approaches 0V (zero volt). Externally-introduced hysteresis is a well-established techniq ...
MAX8873T/S/R, MAX8874T/S/R Low-Dropout, 120mA Linear Regulators _______________General Description ____________________________Features
... (MAX887_S), or 3.15V (MAX887_T) output for load currents up to 120mA. These devices consist of a 1.25V reference, error amplifier, MOSFET driver, P-channel pass transistor, dual-mode comparator, and internal feedback voltage divider (Figure 1). The 1.25V bandgap reference is connected to the error a ...
... (MAX887_S), or 3.15V (MAX887_T) output for load currents up to 120mA. These devices consist of a 1.25V reference, error amplifier, MOSFET driver, P-channel pass transistor, dual-mode comparator, and internal feedback voltage divider (Figure 1). The 1.25V bandgap reference is connected to the error a ...
Digital Power Monitoring Solutions
... Intersil’s Digital Power Monitoring (DPM) devices provide a bi-directional high-side and low-side digital current sense and voltage monitor with serial interface. The device monitors current and voltage and provides the results digitally along with calculated power. The DPM provides tight accuracy w ...
... Intersil’s Digital Power Monitoring (DPM) devices provide a bi-directional high-side and low-side digital current sense and voltage monitor with serial interface. The device monitors current and voltage and provides the results digitally along with calculated power. The DPM provides tight accuracy w ...
Introduction_Power_Supply-6-9-10
... filtered then stepped up or down to the desired voltage level then rectified into pulsating DC, then filtered to a constant DC. A regulator holds the output to a desired level. A DC-DC converter may also be used to generate another DC voltage. • The two most common rectifiers are the single diode ha ...
... filtered then stepped up or down to the desired voltage level then rectified into pulsating DC, then filtered to a constant DC. A regulator holds the output to a desired level. A DC-DC converter may also be used to generate another DC voltage. • The two most common rectifiers are the single diode ha ...
Series Circuits
... And for the other two resistances: ER2 = I x R2 = 0.1666 x 20 = 3.332 volts ER3 = I x R3 = 0.1666 x 30 = 4.998 volts The sum of the voltage drops across each resistance will equal the applied voltage. There will be a small error in our example due to rounding of decimals. Et = ER1 + ER2 + ER3 = 1.66 ...
... And for the other two resistances: ER2 = I x R2 = 0.1666 x 20 = 3.332 volts ER3 = I x R3 = 0.1666 x 30 = 4.998 volts The sum of the voltage drops across each resistance will equal the applied voltage. There will be a small error in our example due to rounding of decimals. Et = ER1 + ER2 + ER3 = 1.66 ...
Zener diodes are designed to have a specific reverse voltage
... you have a voltage that swings between + 7 V and – 7 V, you could use a single 4 V Zener, connected to ground, to ensure that the signal does not exceed 4 V or go below -0.7 V (where the diode conducts forward to ground). If you wanted to constrain the signal to never go negative– e.g., for input to ...
... you have a voltage that swings between + 7 V and – 7 V, you could use a single 4 V Zener, connected to ground, to ensure that the signal does not exceed 4 V or go below -0.7 V (where the diode conducts forward to ground). If you wanted to constrain the signal to never go negative– e.g., for input to ...
SRDA3.3-4 RailClamp Low Capacitance TVS Array PROTECTION PRODUCTS
... protected line exceeds the punch-through or “turn-on” voltage of the TVS diode, the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are connected at pins 1, 4, 6 and 7. Pins 5 and 8 should be connected directly to a ground plane. The ...
... protected line exceeds the punch-through or “turn-on” voltage of the TVS diode, the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are connected at pins 1, 4, 6 and 7. Pins 5 and 8 should be connected directly to a ground plane. The ...
Reading 5 SERIES CIRCUITS When components in a
... And for the other two resistances: ER2 = I x R2 = 0.1666 x 20 = 3.332 volts ER3 = I x R3 = 0.1666 x 30 = 4.998 volts The sum of the voltage drops across each resistance will equal the applied voltage. There will be a small error in our example due to rounding of decimals. Et = ER1 + ER2 + ER3 = 1.66 ...
... And for the other two resistances: ER2 = I x R2 = 0.1666 x 20 = 3.332 volts ER3 = I x R3 = 0.1666 x 30 = 4.998 volts The sum of the voltage drops across each resistance will equal the applied voltage. There will be a small error in our example due to rounding of decimals. Et = ER1 + ER2 + ER3 = 1.66 ...
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.