NCP1207A, NCP1207B PWM Current--Mode Controller for Free Running Quasi--Resonant Operation
... increase the die temperature. This can be achieved by using different methods: 1. Use a MOSFET with lower gate charge Qg. 2. Connect pin 8 through a diode (1N4007 typically) to one of the mains input. The average value on pin 8 ...
... increase the die temperature. This can be achieved by using different methods: 1. Use a MOSFET with lower gate charge Qg. 2. Connect pin 8 through a diode (1N4007 typically) to one of the mains input. The average value on pin 8 ...
RT7300B - Richtek
... operating at the boundary between Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). In CRM, the power switch turns on immediately when the inductor current decreases to zero. The CRM is the preferred control method for medium power (<300W) applications due to the features of ...
... operating at the boundary between Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). In CRM, the power switch turns on immediately when the inductor current decreases to zero. The CRM is the preferred control method for medium power (<300W) applications due to the features of ...
ICL8038
... of the DC voltage at Terminal 8 (measured from V+). By altering this voltage, frequency modulation is performed. For small deviations (e.g. ±10%) the modulating signal can be applied directly to pin 8, merely providing DC decoupling with a capacitor as shown in Figure 5A. An external resistor betwee ...
... of the DC voltage at Terminal 8 (measured from V+). By altering this voltage, frequency modulation is performed. For small deviations (e.g. ±10%) the modulating signal can be applied directly to pin 8, merely providing DC decoupling with a capacitor as shown in Figure 5A. An external resistor betwee ...
MAX14571/MAX14572/MAX14573 Adjustable Overvoltage and Overcurrent Protectors with High Accuracy EVALUATION KIT AVAILABLE
... MAX14571 turns off after 20.7ms (typ) blanking time and stays off during the retry period. The MAX14572 latches off after the blanking time, and the MAX14573 limits the current continuously. A resistor from SETI to GND sets the current limit/threshold for the switch (see the Setting the Current Limi ...
... MAX14571 turns off after 20.7ms (typ) blanking time and stays off during the retry period. The MAX14572 latches off after the blanking time, and the MAX14573 limits the current continuously. A resistor from SETI to GND sets the current limit/threshold for the switch (see the Setting the Current Limi ...
RC time constants
... connected together to form an RC time constant. When the power (Vin) is connected, current will start to flow through the resistor into the capacitor. As this happens the capacitor will start to charge and Vcap will begin to rise. The bigger the resistance the more the current is limited and the lon ...
... connected together to form an RC time constant. When the power (Vin) is connected, current will start to flow through the resistor into the capacitor. As this happens the capacitor will start to charge and Vcap will begin to rise. The bigger the resistance the more the current is limited and the lon ...
Direct current - elev
... 4. Worksheet: Electric element in a dc circuit Activity 4-1 Resistor and Ohm’s law In this activity you are going to use common electric component called resistor that is usually connected to a circuit to make current more difficult to flow. This property to resist the current is described by the p ...
... 4. Worksheet: Electric element in a dc circuit Activity 4-1 Resistor and Ohm’s law In this activity you are going to use common electric component called resistor that is usually connected to a circuit to make current more difficult to flow. This property to resist the current is described by the p ...
The RS-485 Unit Load and Maximum Number of
... enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products ...
... enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products ...
Paper Title (use style: paper title)
... operation and other is change continuity of the circuits parameters, respectively. In this paper, the continuity is considered as the measure of evaluation of this change. To a n(p) – MOS-FET, in saturation mode, any ID (ID1 and ID2) is sensitive to the changes of W, L, k, γ, VT0 and VDD parameters, ...
... operation and other is change continuity of the circuits parameters, respectively. In this paper, the continuity is considered as the measure of evaluation of this change. To a n(p) – MOS-FET, in saturation mode, any ID (ID1 and ID2) is sensitive to the changes of W, L, k, γ, VT0 and VDD parameters, ...
Chem 133 – Spring 2007 – Exam #1 – March 13, 2007
... calculations are required, show your work in order to receive full or partial credit. 1. (3 pts) Choose the one correct answer: Which of the following is one of Kirchhoff’s Laws? a. The current entering any point on a circuit in parallel must equal the current at all other points. b. The voltage dro ...
... calculations are required, show your work in order to receive full or partial credit. 1. (3 pts) Choose the one correct answer: Which of the following is one of Kirchhoff’s Laws? a. The current entering any point on a circuit in parallel must equal the current at all other points. b. The voltage dro ...
NCV7691 - Current Controller for Automotive LED Lamps
... 19.5 V). The open load Detection circuitry is inactive for VS above this Overvoltage Fold−back threshold voltage. ...
... 19.5 V). The open load Detection circuitry is inactive for VS above this Overvoltage Fold−back threshold voltage. ...
Current sensor BT21i - CMA
... terminals. As the current passes through the resistor, a small potential difference can be measured across this resistor. This potential difference goes through a signal amplifier and the output of the sensor is adjusted to the range of 7.5V, which can be measured by an interface. The sensor is pro ...
... terminals. As the current passes through the resistor, a small potential difference can be measured across this resistor. This potential difference goes through a signal amplifier and the output of the sensor is adjusted to the range of 7.5V, which can be measured by an interface. The sensor is pro ...
Charge and Discharge of a Capacitor
... voltage and then discharge them in such a way as to get more voltage (but not more energy) out of the system than was put in. This experiment features an RC circuit, which is one of the simplest circuits that uses a capacitor. You will study this circuit and ways to change its effective capacitance ...
... voltage and then discharge them in such a way as to get more voltage (but not more energy) out of the system than was put in. This experiment features an RC circuit, which is one of the simplest circuits that uses a capacitor. You will study this circuit and ways to change its effective capacitance ...
AN2839
... (tON) and from the IC (in fast decay; from the power supply in slow decay) to the capacitor during the off time (tOFF). The RMS value of the current flowing into the bulk capacitor depends on the peak output current, output current ripple, switching frequency, duty cycle and chopping style. It also ...
... (tON) and from the IC (in fast decay; from the power supply in slow decay) to the capacitor during the off time (tOFF). The RMS value of the current flowing into the bulk capacitor depends on the peak output current, output current ripple, switching frequency, duty cycle and chopping style. It also ...
Preliminary EUP2618 Triple Adjustable Output TFT-LCD DC-DC Converters
... on and charges the flying capacitor C3. This initial charge is controlled by the variable n-channel on resistance. During the second half-cycle, the n-channel MOSFET turns off and the p-channel MOSFET turns on, level shifting C3 by VSUPP volts. This connects C3 in parallel with the reservoir capacit ...
... on and charges the flying capacitor C3. This initial charge is controlled by the variable n-channel on resistance. During the second half-cycle, the n-channel MOSFET turns off and the p-channel MOSFET turns on, level shifting C3 by VSUPP volts. This connects C3 in parallel with the reservoir capacit ...
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.