Zetex - AN22 - High frequency DC-DC conversion using high current
... method to allow this. Switching frequencies therefore have increased from tens of kHz to hundreds of kHz, which has forced a revision of the enabling switching devices. It is an often assumed maxim that bipolar transistors are useful for DC-DC conversion functions up to perhaps 50kHz, and for servic ...
... method to allow this. Switching frequencies therefore have increased from tens of kHz to hundreds of kHz, which has forced a revision of the enabling switching devices. It is an often assumed maxim that bipolar transistors are useful for DC-DC conversion functions up to perhaps 50kHz, and for servic ...
Application Considerations for an Instrumentation Lowpass Filter
... Figure 2 shows the high accuracy of the passband response for values of 1/2πRC around (fC/1.62). If maximum flatness is required, the (R • C) product should be well controlled. Figures 3 and 4 are similar to Figure 2 but with wider range of (1/2πRC) values. When the input (R, C) cutoff frequency appr ...
... Figure 2 shows the high accuracy of the passband response for values of 1/2πRC around (fC/1.62). If maximum flatness is required, the (R • C) product should be well controlled. Figures 3 and 4 are similar to Figure 2 but with wider range of (1/2πRC) values. When the input (R, C) cutoff frequency appr ...
High-Efficiency Backup Power Supply
... First, the converter must be in forced PWM mode. The converter is able to operate in the reverse direction (only in this mode). To enable the forced PWM mode, the PS/SYNC pin must be programmed to a logic high level. The TPS63060 data sheet shows a detailed description of this mode pin. Secondly, th ...
... First, the converter must be in forced PWM mode. The converter is able to operate in the reverse direction (only in this mode). To enable the forced PWM mode, the PS/SYNC pin must be programmed to a logic high level. The TPS63060 data sheet shows a detailed description of this mode pin. Secondly, th ...
Unit 16 Inductance in AC Circuits
... increases through a coil, a magnetic field is created around the coil. ...
... increases through a coil, a magnetic field is created around the coil. ...
AMES Sample
... In the previous activity, we observed that alternating current behaves quite differently from direct current. The first observation was with the motion of the electrons. Instead of flowing around the circuit, they stayed relatively close to where they began, moved in one direction, and then moved ba ...
... In the previous activity, we observed that alternating current behaves quite differently from direct current. The first observation was with the motion of the electrons. Instead of flowing around the circuit, they stayed relatively close to where they began, moved in one direction, and then moved ba ...
RF5924 2.4GHz TO 2.5GHz, SINGLE-BAND FRONT-END MODULE Features
... The RF5924 FEM is a single-chip integrated front-end module (FEM) for high performance WiFi applications in the 2.4GHz to 2.5GHz ISM band. The FEM addresses the need for aggressive size reduction for a typical 802.11b/g RF front-end design and greatly reduces the number of components outside of the ...
... The RF5924 FEM is a single-chip integrated front-end module (FEM) for high performance WiFi applications in the 2.4GHz to 2.5GHz ISM band. The FEM addresses the need for aggressive size reduction for a typical 802.11b/g RF front-end design and greatly reduces the number of components outside of the ...
Breadboard and Circuit Diagram Basics
... Breadboards come in a variety of sizes and shapes, but they all work the same way. They all have two distinct areas — bus strips and terminal strips. The bus strips are on the top and/or bottom of the breadboard; often, as in Figure 5, two bus strips are located across the top and two across the bot ...
... Breadboards come in a variety of sizes and shapes, but they all work the same way. They all have two distinct areas — bus strips and terminal strips. The bus strips are on the top and/or bottom of the breadboard; often, as in Figure 5, two bus strips are located across the top and two across the bot ...
Comparison of Controllers for a Three
... connected photovoltaic or wind power generation systems, so they need an accurate phase tracking system to work properly. The phase obtained is used to construct a reference carrier wave to synchronize the on/off commutations of power devices, calculate and control the flow of active/reactive power ...
... connected photovoltaic or wind power generation systems, so they need an accurate phase tracking system to work properly. The phase obtained is used to construct a reference carrier wave to synchronize the on/off commutations of power devices, calculate and control the flow of active/reactive power ...
LMH2121 3GHz Fast-Responding Linear Pwr Detctr w 40dB
... unmodulated), EN = 2.7V. Boldface limits apply at the temperature extremes (1). ...
... unmodulated), EN = 2.7V. Boldface limits apply at the temperature extremes (1). ...
section 1
... the value τ/c, with c=10 (c is a new unsigned int variable). The program calculates the percentage error for each discrete time instant and stores its maximum value in the new variable MaxErr. When MaxErr becomes lower than Acc the desired accuracy is reached and the program prints Errj versus time ...
... the value τ/c, with c=10 (c is a new unsigned int variable). The program calculates the percentage error for each discrete time instant and stores its maximum value in the new variable MaxErr. When MaxErr becomes lower than Acc the desired accuracy is reached and the program prints Errj versus time ...
Basic Quantities
... Current is moving positive electrical charge. Measured in Amperes (A) = 1 Coulomb/s Current is represented by I or i. In general, current can be an arbitrary function of time. Constant current is called direct current (DC). Current that can be represented as a sinusoidal function of time (or in so ...
... Current is moving positive electrical charge. Measured in Amperes (A) = 1 Coulomb/s Current is represented by I or i. In general, current can be an arbitrary function of time. Constant current is called direct current (DC). Current that can be represented as a sinusoidal function of time (or in so ...
数据资料缩写本 DS28EL25 DeepCover安全认证器， 带有1-Wire SHA-256和4Kb用户EEPROM
... times. The specified value here applies to systems with only one device and with the minimum 1-Wire recovery times. Note 4: Typical value represents the internal parasite capacitance when VPUP is first applied. Once the parasite capacitance is charged, it does not affect normal communication. Note ...
... times. The specified value here applies to systems with only one device and with the minimum 1-Wire recovery times. Note 4: Typical value represents the internal parasite capacitance when VPUP is first applied. Once the parasite capacitance is charged, it does not affect normal communication. Note ...
HMC377QS16G 数据资料DataSheet下载
... General Description The HMC377QS16G & HMC377QS16GE are linear downconverter receiver ICs suitable for cellular infrastructure applications from 0.8 - 1.0 GHz. An integrated mixer coupled with a high dynamic range IF amplifier achieves an input intercept point (IP3) of +15 dBm, and an input P1dB of + ...
... General Description The HMC377QS16G & HMC377QS16GE are linear downconverter receiver ICs suitable for cellular infrastructure applications from 0.8 - 1.0 GHz. An integrated mixer coupled with a high dynamic range IF amplifier achieves an input intercept point (IP3) of +15 dBm, and an input P1dB of + ...
Super Sequencer with Margining Control ADM1069 FEATURES
... monitoring undervoltage faults, overvoltage faults, or out-ofwindow faults on up to eight supplies. In addition, there are eight programmable outputs that can be used as logic enables. Six of these programmable outputs can also provide up to a 12 V output for driving the gate of an N-FET that can be ...
... monitoring undervoltage faults, overvoltage faults, or out-ofwindow faults on up to eight supplies. In addition, there are eight programmable outputs that can be used as logic enables. Six of these programmable outputs can also provide up to a 12 V output for driving the gate of an N-FET that can be ...
MAX3171/MAX3173 +3.3V Multiprotocol 3Tx/3Rx Software-Selectable Control Transceivers General Description
... An internal charge pump and proprietary low-dropout transmitter output stage allow V.28, V.11, and V.10 compliant operation from a single +3.3V supply. A nocable mode is entered when all mode pins (M0, M1, and M2) are pulled high or left unconnected. In nocable mode, supply current decreases to 2mA ...
... An internal charge pump and proprietary low-dropout transmitter output stage allow V.28, V.11, and V.10 compliant operation from a single +3.3V supply. A nocable mode is entered when all mode pins (M0, M1, and M2) are pulled high or left unconnected. In nocable mode, supply current decreases to 2mA ...
Operational amplifier
An operational amplifier (""op-amp"") is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output. In this configuration, an op-amp produces an output potential (relative to circuit ground) that is typically hundreds of thousands of times larger than the potential difference between its input terminals.Operational amplifiers had their origins in analog computers, where they were used to do mathematical operations in many linear, non-linear and frequency-dependent circuits. The popularity of the op-amp as a building block in analog circuits is due to its versatility. Due to negative feedback, the characteristics of an op-amp circuit, its gain, input and output impedance, bandwidth etc. are determined by external components and have little dependence on temperature coefficients or manufacturing variations in the op-amp itself.Op-amps are among the most widely used electronic devices today, being used in a vast array of consumer, industrial, and scientific devices. Many standard IC op-amps cost only a few cents in moderate production volume; however some integrated or hybrid operational amplifiers with special performance specifications may cost over $100 US in small quantities. Op-amps may be packaged as components, or used as elements of more complex integrated circuits.The op-amp is one type of differential amplifier. Other types of differential amplifier include the fully differential amplifier (similar to the op-amp, but with two outputs), the instrumentation amplifier (usually built from three op-amps), the isolation amplifier (similar to the instrumentation amplifier, but with tolerance to common-mode voltages that would destroy an ordinary op-amp), and negative feedback amplifier (usually built from one or more op-amps and a resistive feedback network).