BQ24751B 数据资料 dataSheet 下载
... AGND. The capacitor sets the time that the input current limit, ACOC, can be sustained before exceeding the power-MOSFET power limit. When the ACOP voltage exceeds 2 V, then the ACDRV latches off to protect the charge system from an overpower condition, ACOP. Reset latch by toggling ACDET or PVCC_UV ...
... AGND. The capacitor sets the time that the input current limit, ACOC, can be sustained before exceeding the power-MOSFET power limit. When the ACOP voltage exceeds 2 V, then the ACDRV latches off to protect the charge system from an overpower condition, ACOP. Reset latch by toggling ACDET or PVCC_UV ...
AD5247 数据手册DataSheet下载
... solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient devices a ...
... solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient devices a ...
Lesson 1 - Introduction
... • Power MOSFETs are excellent power devices to be used in power converters up to a few kWs. • They have good switching characteristics because they are unipolar devices. • This means that the current is due to majority carriers exclusively and that it does not pass through any PN junction. • Due to ...
... • Power MOSFETs are excellent power devices to be used in power converters up to a few kWs. • They have good switching characteristics because they are unipolar devices. • This means that the current is due to majority carriers exclusively and that it does not pass through any PN junction. • Due to ...
Naim DAC White paper
... S/PDIF (which has now been incorporated into the expanded AES3 digital interface specification) is the industry standard for real-time transfer of digital audio from one consumer audio product to another. Within a product the same digital audio signal is transferred between devices via a different i ...
... S/PDIF (which has now been incorporated into the expanded AES3 digital interface specification) is the industry standard for real-time transfer of digital audio from one consumer audio product to another. Within a product the same digital audio signal is transferred between devices via a different i ...
74CBTLV3244 8-bit bus switch with 4-bit output enables
... disabled when the associated nOE input is HIGH. Schmitt trigger action at control inputs makes the circuit tolerant of slower input rise and fall times. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging back ...
... disabled when the associated nOE input is HIGH. Schmitt trigger action at control inputs makes the circuit tolerant of slower input rise and fall times. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging back ...
Notes on ASK, FSK and PSK
... Referring to Equation (2.1), if the information signal is digital and the amplitude (lV of the carrier is varied proportional to the information signal, a digitally modulated signal called amplitude shift keying (ASK) is produced. If the frequency (f) is varied proportional to the information signal ...
... Referring to Equation (2.1), if the information signal is digital and the amplitude (lV of the carrier is varied proportional to the information signal, a digitally modulated signal called amplitude shift keying (ASK) is produced. If the frequency (f) is varied proportional to the information signal ...
Embedded passive components and electronic circuits into the
... strain gauge. In this circuit, a differential amplifier was added to increase sensitivity. The functionality tests of the strain gauge integrated with PCB showed that the resistance change due to deformation of strain gauge are enough large that can do displacement, force or vibration sensors. They ...
... strain gauge. In this circuit, a differential amplifier was added to increase sensitivity. The functionality tests of the strain gauge integrated with PCB showed that the resistance change due to deformation of strain gauge are enough large that can do displacement, force or vibration sensors. They ...
RClamp0522P RClamp0524P
... RailClamp® TVS arrays are ultra low capacitance ESD protection devices designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostati ...
... RailClamp® TVS arrays are ultra low capacitance ESD protection devices designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostati ...
Tip-sample control using quartz tuning forks in
... NSOM design specifications require that the tip sample distance control should be achieved with sub-nanometer precision. Several distance control mechanisms have been applied to NSOM, including electron tunneling[2,3], capacitance[4], photon tunneling[5], and atomic force[1,6]. The last mechanism de ...
... NSOM design specifications require that the tip sample distance control should be achieved with sub-nanometer precision. Several distance control mechanisms have been applied to NSOM, including electron tunneling[2,3], capacitance[4], photon tunneling[5], and atomic force[1,6]. The last mechanism de ...
SG-2020 Transceiver
... a. Set the SG-2020 to the desired frequency with mode USB and BW 2.2 KHz. Be sure to turn the RF gain fully clockwise. b. Set the signal generator to the same frequency plus 1 KHz and set its output level to 50 micro volts. c. Verify that the 5 LED’s in the bargraph display are lit. If the bargraph ...
... a. Set the SG-2020 to the desired frequency with mode USB and BW 2.2 KHz. Be sure to turn the RF gain fully clockwise. b. Set the signal generator to the same frequency plus 1 KHz and set its output level to 50 micro volts. c. Verify that the 5 LED’s in the bargraph display are lit. If the bargraph ...
Analog And Digital Interfacing
... Transfer Function Relationship between physical quantity and output voltage Sensitivity Ratio of change between physical quantity and output voltage Accuracy Largest expected error Linearity How linear the transfer function is Noise In real world, signal are usually coupled with ...
... Transfer Function Relationship between physical quantity and output voltage Sensitivity Ratio of change between physical quantity and output voltage Accuracy Largest expected error Linearity How linear the transfer function is Noise In real world, signal are usually coupled with ...
30V Internal Switch LCD Bias Supply MAX1605
... Negative Voltage for LCD Bias The MAX1605 can also generate a negative output by adding a diode-capacitor charge-pump circuit (D1, D2, and C3) to the LX pin as shown in Figure 4. Feedback is still connected to the positive output, which is not loaded, allowing a very small capacitor value at C4. For ...
... Negative Voltage for LCD Bias The MAX1605 can also generate a negative output by adding a diode-capacitor charge-pump circuit (D1, D2, and C3) to the LX pin as shown in Figure 4. Feedback is still connected to the positive output, which is not loaded, allowing a very small capacitor value at C4. For ...
Lab Manual
... 80C51 Microcontroller :All 80C51 devices have separate address spaces for program and data memory, as shown in Figures 1 and 2. The logical separation of program and data memory allows the data memory to be accessed by 8-bit addresses, which can be quickly stored and manipulated by an 8-bit CPU. Nev ...
... 80C51 Microcontroller :All 80C51 devices have separate address spaces for program and data memory, as shown in Figures 1 and 2. The logical separation of program and data memory allows the data memory to be accessed by 8-bit addresses, which can be quickly stored and manipulated by an 8-bit CPU. Nev ...
low voltage power module installation guide
... into a grounded 120V outlet. Turn on one breaker at a time to ensure that your low voltage cable runs are connected per TABLE 1, and to ensure that there are not any short circuits. ...
... into a grounded 120V outlet. Turn on one breaker at a time to ensure that your low voltage cable runs are connected per TABLE 1, and to ensure that there are not any short circuits. ...
Room for extra work
... 3. {20 Points} A measurement of the resistance of an unknown resistor RX is attempted by a novice using a voltmeter and an ammeter, as shown in the circuit below. The intention is to simultaneously measure the current through the resistor with the ammeter, and the voltage across the resistor with th ...
... 3. {20 Points} A measurement of the resistance of an unknown resistor RX is attempted by a novice using a voltmeter and an ammeter, as shown in the circuit below. The intention is to simultaneously measure the current through the resistor with the ammeter, and the voltage across the resistor with th ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.