ZXLD1322
... Control is achieved by sensing the LED current in a series resistor (RM), connected between the two inputs of the LED Current Monitor. This generates a proportional current (IMON) that charges the external integrator capacitor CFB. IMON is balanced against a reference discharge current (IADJ) genera ...
... Control is achieved by sensing the LED current in a series resistor (RM), connected between the two inputs of the LED Current Monitor. This generates a proportional current (IMON) that charges the external integrator capacitor CFB. IMON is balanced against a reference discharge current (IADJ) genera ...
MAX774/MAX775/MAX776 -5V/-12V/-15V or Adjustable, High-Efficiency, Low I Inverting DC-to-DC Controllers
... A benefit of this control scheme is that it is highly efficient over a wide range of input/output ratios and load currents. Additionally, PFM converters do not operate with constant-frequency switching, and have relaxed stability criterion (unlike PWM converters). As a result, their external compone ...
... A benefit of this control scheme is that it is highly efficient over a wide range of input/output ratios and load currents. Additionally, PFM converters do not operate with constant-frequency switching, and have relaxed stability criterion (unlike PWM converters). As a result, their external compone ...
FNB40560 Motion SPM 45 Series FNB40560 Motio
... 2) By virtue of integrating an application-specific type of HVIC inside the Motion SPM® 45 product, direct coupling to MCU terminals without any optocoupler or transformer isolation is possible. 3) VFO output is open-drain type. This signal line should be pulled up to the positive side of the MCU or ...
... 2) By virtue of integrating an application-specific type of HVIC inside the Motion SPM® 45 product, direct coupling to MCU terminals without any optocoupler or transformer isolation is possible. 3) VFO output is open-drain type. This signal line should be pulled up to the positive side of the MCU or ...
A low reference spur quadrature phase
... Abstract: This paper presents a low phase noise and low reference spur quadrature phase-locked loop (QPLL) circuit that is implemented as a part of a frequency synthesizer for China UWB standard systems. A glitch-suppressed charge pump (CP) is employed for reference spur reduction. By forcing the ph ...
... Abstract: This paper presents a low phase noise and low reference spur quadrature phase-locked loop (QPLL) circuit that is implemented as a part of a frequency synthesizer for China UWB standard systems. A glitch-suppressed charge pump (CP) is employed for reference spur reduction. By forcing the ph ...
DC TRANSIENT ANALYSIS
... Switching time • For all transient cases, the following instants of switching times are considered. t = 0- , this is the time of switching between -∞ to 0 or time before. t = 0+ , this is the time of switching at the instant just after time t = 0s (taken as initial value) t = ∞ , this is the ...
... Switching time • For all transient cases, the following instants of switching times are considered. t = 0- , this is the time of switching between -∞ to 0 or time before. t = 0+ , this is the time of switching at the instant just after time t = 0s (taken as initial value) t = ∞ , this is the ...
Evaluation Board User Guide UG-336
... By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the An ...
... By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the An ...
lab sheet - Faculty of Engineering
... A wattmeter is an indicating instrument, which takes v and i, and performs the multiplication, integration and averaging indicated in equation (1.2). The average power P, (also called true power) is shown on the instrument by a pointer-position (or digitally). For connection into the circuit, a watt ...
... A wattmeter is an indicating instrument, which takes v and i, and performs the multiplication, integration and averaging indicated in equation (1.2). The average power P, (also called true power) is shown on the instrument by a pointer-position (or digitally). For connection into the circuit, a watt ...
MAX1761 Small, Dual, High-Efficiency Buck Controller for Notebooks General Description
... input/output voltage ratios with ease and provides “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1761 achieves high efficiency at reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency i ...
... input/output voltage ratios with ease and provides “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1761 achieves high efficiency at reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency i ...
ADL5315 数据手册DataSheet 下载
... 2.2 nF, for example, combined with the 20 kΩ output resistance at SREF, creates a pole at approximately 3 kHz. The voltage at the SREF pin can be lowered to a desired fixed value with the use of a single external resistor from SREF to ground. Mismatch between on-chip and external resistors limits th ...
... 2.2 nF, for example, combined with the 20 kΩ output resistance at SREF, creates a pole at approximately 3 kHz. The voltage at the SREF pin can be lowered to a desired fixed value with the use of a single external resistor from SREF to ground. Mismatch between on-chip and external resistors limits th ...
ACS715 - Pololu
... evaluation board has 1500 mm2 of 2 oz. copper on each side, connected to pins 1 and 2, and to pins 3 and 4, with thermal vias connecting the layers. Performance values include the power consumed by the PCB. Further details on the board are available from the Frequently Asked Questions document on ou ...
... evaluation board has 1500 mm2 of 2 oz. copper on each side, connected to pins 1 and 2, and to pins 3 and 4, with thermal vias connecting the layers. Performance values include the power consumed by the PCB. Further details on the board are available from the Frequently Asked Questions document on ou ...
ECE 421
... With R2 set much larger than R1, as V1 is increased the voltage drop across R2 is much larger and transistor Q2 saturates. As V1 is V2 increased even further Q2 will eventually come out of saturation R3 when V2 reaches one VBE above ground. At this time the current will begin flowing through Q3 from ...
... With R2 set much larger than R1, as V1 is increased the voltage drop across R2 is much larger and transistor Q2 saturates. As V1 is V2 increased even further Q2 will eventually come out of saturation R3 when V2 reaches one VBE above ground. At this time the current will begin flowing through Q3 from ...
PAM99700 Description Pin Assignments
... output voltage variation. PAM99700 makes it easy to switch between the two modes of operation by changing one connection (see oscillator section). ...
... output voltage variation. PAM99700 makes it easy to switch between the two modes of operation by changing one connection (see oscillator section). ...
Resistance and Ohm`s Law
... Voltage is the difference in potential energy per unit of charge between one point in the circuit and another point in the circuit. When you increase the voltage connected to the circuit, the current will also increase. In other words, voltage is directly proportional to current. Georg Ohm, a German ...
... Voltage is the difference in potential energy per unit of charge between one point in the circuit and another point in the circuit. When you increase the voltage connected to the circuit, the current will also increase. In other words, voltage is directly proportional to current. Georg Ohm, a German ...
Varistors MLA Datasheet
... (EMC). The MLA Series is typically applied to protect integrated circuits and other components at the circuit board level. The wide operating voltage and energy range make the MLA Series suitable for numerous applications on power supply, control and signal lines. ...
... (EMC). The MLA Series is typically applied to protect integrated circuits and other components at the circuit board level. The wide operating voltage and energy range make the MLA Series suitable for numerous applications on power supply, control and signal lines. ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.