Analysis and Design of Quasi- Square Wave Resonant Converters
... In a self-oscillating QR, Fsw increases as the load decreases Higher losses at light load if Fsw is not limited 2 methods to limit Fsw: – Frequency clamp with frequency foldback – Changing valley with valley lockout ...
... In a self-oscillating QR, Fsw increases as the load decreases Higher losses at light load if Fsw is not limited 2 methods to limit Fsw: – Frequency clamp with frequency foldback – Changing valley with valley lockout ...
AP3440 Description Pin Assignments
... During normal operation, if the VIN goes below the UVLO, or the EN pin is pulled below 1.2V, or a thermal shutdown occurs, the AP3440 will stop switching and the SS pin will be discharged to 40mV before reinitiating a powering up sequence. Enable and Adjusting UVLO The AP3440 are disabled when the V ...
... During normal operation, if the VIN goes below the UVLO, or the EN pin is pulled below 1.2V, or a thermal shutdown occurs, the AP3440 will stop switching and the SS pin will be discharged to 40mV before reinitiating a powering up sequence. Enable and Adjusting UVLO The AP3440 are disabled when the V ...
LTC6405
... ratio of the change in supply voltage to the change in differential input referred voltage offset. Common mode power supply rejection (PSRRCM) is defined as the ratio of the change in supply voltage to the change in the common mode offset, VOUTCM – VOCM. Note 10: Extended operation with the output sh ...
... ratio of the change in supply voltage to the change in differential input referred voltage offset. Common mode power supply rejection (PSRRCM) is defined as the ratio of the change in supply voltage to the change in the common mode offset, VOUTCM – VOCM. Note 10: Extended operation with the output sh ...
MAX1779 Low-Power Triple-Output TFT LCD DC-DC Converter General Description
... regulation algorithm minimizes output ripple as well as capacitor sizes for both charge pumps. Also included in the MAX1779 are a precision 1.25V reference that sources up to 50µA, logic shutdown, soft-start, power-up sequencing, fault detection, and an active-low open-drain ready output. ...
... regulation algorithm minimizes output ripple as well as capacitor sizes for both charge pumps. Also included in the MAX1779 are a precision 1.25V reference that sources up to 50µA, logic shutdown, soft-start, power-up sequencing, fault detection, and an active-low open-drain ready output. ...
THS5661A 数据资料 dataSheet 下载
... impedance, supporting both single-ended and differential applications. The output current can be directly fed to the load (e.g., external resistor load or transformer), with no additional external output buffer required. An accurate on-chip reference and control amplifier allows the user to adjust t ...
... impedance, supporting both single-ended and differential applications. The output current can be directly fed to the load (e.g., external resistor load or transformer), with no additional external output buffer required. An accurate on-chip reference and control amplifier allows the user to adjust t ...
Operational Amplifier Circuits Comparators and Positive Feedback
... back to VL and the alarm is turned off. This fluctuation in Vin might be noise in the signal or some temporary decreases in the smoke (the effect of a person fanning at the smoke detector). The smoke is still around however and as it is shown on the evolution, the transition voltage will be crossed ...
... back to VL and the alarm is turned off. This fluctuation in Vin might be noise in the signal or some temporary decreases in the smoke (the effect of a person fanning at the smoke detector). The smoke is still around however and as it is shown on the evolution, the transition voltage will be crossed ...
TPS60300-03 - Texas Instruments
... TPS60302 and TPS60303. The PG-output pulls low when the output of OUT2 is out of regulation. When the output rises to within 98% of regulation, the power-good output goes active high. In shutdown, power-good is pulled low. In normal operation, an external pullup resistor with the TPS60300 and TPS603 ...
... TPS60302 and TPS60303. The PG-output pulls low when the output of OUT2 is out of regulation. When the output rises to within 98% of regulation, the power-good output goes active high. In shutdown, power-good is pulled low. In normal operation, an external pullup resistor with the TPS60300 and TPS603 ...
Study Material Circuit Theory 3rd Semester Electronics & Telecom Engineering
... An electric circuit is an interconnection of electrical elements such as resistors, capacitors, inductors, voltage source etc. In electrical engineering, transfer of energy takes place from one point to another, which requires interconnection of electrical devices. Such interconnection is known as e ...
... An electric circuit is an interconnection of electrical elements such as resistors, capacitors, inductors, voltage source etc. In electrical engineering, transfer of energy takes place from one point to another, which requires interconnection of electrical devices. Such interconnection is known as e ...
Electricity Module 2
... understanding how connections are made between wires. You will also need to measure resistance, voltage, and current at various locations in the circuits. One multi-meter will make all the measurements, but you have to be careful to connect the meter correctly. Incorrect connections will give you ba ...
... understanding how connections are made between wires. You will also need to measure resistance, voltage, and current at various locations in the circuits. One multi-meter will make all the measurements, but you have to be careful to connect the meter correctly. Incorrect connections will give you ba ...
AD637 数据手册DataSheet 下载
... The input circuitry of the AD637 is protected from overload voltages in excess of the supply levels. The inputs are not damaged by input signals if the supply voltages are lost. The AD637 is available in accuracy Grade J and Grade K for commercial temperature range (0°C to 70°C) applications, accura ...
... The input circuitry of the AD637 is protected from overload voltages in excess of the supply levels. The inputs are not damaged by input signals if the supply voltages are lost. The AD637 is available in accuracy Grade J and Grade K for commercial temperature range (0°C to 70°C) applications, accura ...
UCC28019A 数据资料 dataSheet 下载
... than 200 µA. The user can control low power standby mode by pulling the VSENSE pin below 0.77 V. Low-distortion wave shaping of the input current using average current mode control is achieved without input line sensing, reducing the external component count. Simple external networks allow for flexi ...
... than 200 µA. The user can control low power standby mode by pulling the VSENSE pin below 0.77 V. Low-distortion wave shaping of the input current using average current mode control is achieved without input line sensing, reducing the external component count. Simple external networks allow for flexi ...
GNS RF2411
... 22pF for 1800MHz. Matching is required; see the applications schematics. To minimize the noise figure it is recommended to have a bandpass filter before this input. This will prevent noise at the image frequency from being converted to the IF. ...
... 22pF for 1800MHz. Matching is required; see the applications schematics. To minimize the noise figure it is recommended to have a bandpass filter before this input. This will prevent noise at the image frequency from being converted to the IF. ...
LMX2370/LMX2371/LMX2372 PLLatinum Dual Frequency Synthesizer for RF Personal Communications
... The basic phase-lock-loop (PLL) configuration consists of a high-stability crystal reference oscillator, a frequency synthesizer such as the National Semiconductor LMX2370/2371/2372, a voltage controlled oscillator (VCO), and a passive loop filter. The frequency synthesizer includes a phase detecto ...
... The basic phase-lock-loop (PLL) configuration consists of a high-stability crystal reference oscillator, a frequency synthesizer such as the National Semiconductor LMX2370/2371/2372, a voltage controlled oscillator (VCO), and a passive loop filter. The frequency synthesizer includes a phase detecto ...
Single Output , 0.8-3.3V 10 Amp DC/DC’s in SMT Packages
... DATEL's LSM D5 Series for SMT (surface-mount) are non-isolated DC/DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver 0.8V, 1V, 1.2V, 1.5V, 1.8V, 2V, 2.5V, or 3.3V outputs at 10 Amps. LSM D5 SMT's are designed to take on-board 5V power and convert it, with the highest efficie ...
... DATEL's LSM D5 Series for SMT (surface-mount) are non-isolated DC/DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver 0.8V, 1V, 1.2V, 1.5V, 1.8V, 2V, 2.5V, or 3.3V outputs at 10 Amps. LSM D5 SMT's are designed to take on-board 5V power and convert it, with the highest efficie ...
in Word Doc Format
... (d) NOR gate 45. In a radio receiver the IF amplifier (a) is tuned above the stations incoming frequency (b) amplifies the output of local oscillator (c) is fixed tuned to one particular frequency (Ans) (d) can be tuned to various isolate frequencies 46. A duplexer is used to (a) couple two antennas ...
... (d) NOR gate 45. In a radio receiver the IF amplifier (a) is tuned above the stations incoming frequency (b) amplifies the output of local oscillator (c) is fixed tuned to one particular frequency (Ans) (d) can be tuned to various isolate frequencies 46. A duplexer is used to (a) couple two antennas ...
Flip flops
... the information in the same moment. The good working condition for this circuit is RnSn=0. Above, tn is the actual moment, and Rn, Sn, Qn are the input and the output values at the present moment, and tn+1 is the next moment, Qn+1 is the output in this moment. For the circuit synthesis Qn+1 is cons ...
... the information in the same moment. The good working condition for this circuit is RnSn=0. Above, tn is the actual moment, and Rn, Sn, Qn are the input and the output values at the present moment, and tn+1 is the next moment, Qn+1 is the output in this moment. For the circuit synthesis Qn+1 is cons ...