Lecture 7: Hybrid Transistor Model for small AC :
... In this model we assume the transistor is biased on properly and do not show the biasing circuit. Since a transistor has only 3 legs, one of the terminals is common between the input and output. There are 4 variables in the problem, Ii, Vi, Io, and Vo. ...
... In this model we assume the transistor is biased on properly and do not show the biasing circuit. Since a transistor has only 3 legs, one of the terminals is common between the input and output. There are 4 variables in the problem, Ii, Vi, Io, and Vo. ...
FSL176MRT Green-Mode Fairchild Power Switch (FPS™) Features
... solder defect causes an opening in the feedback path, the current through the opto-coupler transistor becomes almost zero. Then VFB climbs up in a similar manner to the overload situation, forcing the preset maximum current to be supplied to the SMPS until the overload protection is triggered. Becau ...
... solder defect causes an opening in the feedback path, the current through the opto-coupler transistor becomes almost zero. Then VFB climbs up in a similar manner to the overload situation, forcing the preset maximum current to be supplied to the SMPS until the overload protection is triggered. Becau ...
AP7331 300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR
... resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulator, protecting it from damage due to overheating. ...
... resistance, and ambient temperature, the thermal protection circuit may cycle on and off. This cycling limits the heat dissipation of the regulator, protecting it from damage due to overheating. ...
Capacitance Adjustment, which combines the ... different capacitances, i.e. different sensitivities, ...
... rate. However, they have lower sensitivity to low illumination levels, since they just detect saturation events; 5) Time to firstspike (TTS) sensors [10,11] have very high DR, and high frame rate as well, but still suffer under low sensitivity at high illumination levels. Further, they need very pre ...
... rate. However, they have lower sensitivity to low illumination levels, since they just detect saturation events; 5) Time to firstspike (TTS) sensors [10,11] have very high DR, and high frame rate as well, but still suffer under low sensitivity at high illumination levels. Further, they need very pre ...
... voltage but is insensitive to the average voltage. This mode is convenient for most sine wave measurements. It must be used to observe small variations of large voltages. The capacitor will produce a DC level shift for pulses (see notes Section 3.04). 5.3* DC INPUT. The DC mode uses a direct connect ...
AdvLessons#10
... 3. Suppose the resistor was replaced by a wire of negligible resistance. What current will flow through the wire? ...
... 3. Suppose the resistor was replaced by a wire of negligible resistance. What current will flow through the wire? ...
High Voltage, Precision Difference Amplifier AD8208
... In load control configurations for high-side current sensing with a low-side switch, the PWM-controlled switch is ground referenced. An inductive load (solenoid) connects to a power supply/battery. A resistive shunt is placed between the switch and the load (see Figure 25). An advantage of placing t ...
... In load control configurations for high-side current sensing with a low-side switch, the PWM-controlled switch is ground referenced. An inductive load (solenoid) connects to a power supply/battery. A resistive shunt is placed between the switch and the load (see Figure 25). An advantage of placing t ...
NCP1532GEVB NCP1532 Dual Output Step-down Converter Evaluation Board User's
... efficiency. The device can also operate into fixed frequency PWM mode for low noise applications where low ripple and good load transients are required. Additional features include integrated soft−start, cycle−by−cycle current limit and thermal shutdown protection. The device can also be synchronize ...
... efficiency. The device can also operate into fixed frequency PWM mode for low noise applications where low ripple and good load transients are required. Additional features include integrated soft−start, cycle−by−cycle current limit and thermal shutdown protection. The device can also be synchronize ...
ADP5037 英文数据手册DataSheet 下载
... BUCK2 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the BUCK2 resistor divider. For device models with fixed output voltage, leave this pin unconnected. BUCK2 Output Voltage Sensing Input. Connect VOUT2 to the top of the capacitor on VOUT2. BUCK1 ...
... BUCK2 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the BUCK2 resistor divider. For device models with fixed output voltage, leave this pin unconnected. BUCK2 Output Voltage Sensing Input. Connect VOUT2 to the top of the capacitor on VOUT2. BUCK1 ...
MAX8740 TFT-LCD Step-Up DC-DC Converter General Description Features
... is the ratio of the inductor peak-to-peak ripple current to the average DC inductor current at the full load current. The best trade-off between inductor size and circuit efficiency for step-up regulators generally has an LIR between 0.3 and 0.5. However, depending on the AC characteristics of the i ...
... is the ratio of the inductor peak-to-peak ripple current to the average DC inductor current at the full load current. The best trade-off between inductor size and circuit efficiency for step-up regulators generally has an LIR between 0.3 and 0.5. However, depending on the AC characteristics of the i ...
lab sheet - Faculty of Engineering
... 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 wattmeter has four terminals - two current terminals and two potential terminals. The connections a ...
... 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 wattmeter has four terminals - two current terminals and two potential terminals. The connections a ...
MP1 manual - Grimm Audio
... Upon delivery, an MP1 is factory set to the typical supply voltages of your microphone model. This microphone type is indicated at the back of the MP1. If the microphone features remote control of its polar pattern, this can be controlled with the optional knob on the front panel of the MP1. There i ...
... Upon delivery, an MP1 is factory set to the typical supply voltages of your microphone model. This microphone type is indicated at the back of the MP1. If the microphone features remote control of its polar pattern, this can be controlled with the optional knob on the front panel of the MP1. There i ...
Lecture 12
... • One way to isolate AC power is to use a transformer. A transformer is a couple of coils of wire which transfer power by a changing magnetic field. • By having different numbers of windings, or turns of wire, a transformer can step up or step down an AC voltage. ...
... • One way to isolate AC power is to use a transformer. A transformer is a couple of coils of wire which transfer power by a changing magnetic field. • By having different numbers of windings, or turns of wire, a transformer can step up or step down an AC voltage. ...
Impedance_Matching
... out-of-phase with the voltage dropped across the load. Thus, the real and reactive powers are non-zero. The power factor, PF, is the ratio of the real power divided by the apparent power, the phasor magnitude of the complex power, delivered to the load. If the load is entirely inductive, power is st ...
... out-of-phase with the voltage dropped across the load. Thus, the real and reactive powers are non-zero. The power factor, PF, is the ratio of the real power divided by the apparent power, the phasor magnitude of the complex power, delivered to the load. If the load is entirely inductive, power is st ...
AN-911 APPLICATION NOTE Tiger
... A Detailed Guide to Powering the TigerSHARC Processors by Mark Malaeb ...
... A Detailed Guide to Powering the TigerSHARC Processors by Mark Malaeb ...
AS1341
... The AS1341 uses a proprietary current-limiting control scheme with operation up to 100% duty cycle. The DC-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high-supply currents associated with conventi ...
... The AS1341 uses a proprietary current-limiting control scheme with operation up to 100% duty cycle. The DC-DC converter pulses as needed to maintain regulation, resulting in a variable switching frequency that increases with the load. This eliminates the high-supply currents associated with conventi ...
Voltage regulator
A voltage regulator is designed to automatically maintain a constant voltage level. A voltage regulator may be a simple ""feed-forward"" design or may include negative feedback control loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.