Data Sheet WHITE LED STEP-UP CONVERTER AP3032 General
... The AP3032 is a boost DC-DC converter which uses a constant frequency, current mode control scheme to provide excellent line and load regulation. Operation can be best understood by referring to the Figure 21. At the start of each oscillator cycle, switch Q1 turns on. The switch current will increas ...
... The AP3032 is a boost DC-DC converter which uses a constant frequency, current mode control scheme to provide excellent line and load regulation. Operation can be best understood by referring to the Figure 21. At the start of each oscillator cycle, switch Q1 turns on. The switch current will increas ...
MAX1574 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN
... current at turn-on. When starting up, the output capacitor is charged directly from the input with a ramped current source (with no charge-pump action) until the output voltage approaches the input voltage. Once this occurs, the charge pump determines if 1x or 2x mode is required. In the case of 1x ...
... current at turn-on. When starting up, the output capacitor is charged directly from the input with a ramped current source (with no charge-pump action) until the output voltage approaches the input voltage. Once this occurs, the charge pump determines if 1x or 2x mode is required. In the case of 1x ...
Научно-производственное объединение
... 4. Measure voltage relatively pin «SRC» in shorted load mode , when voltage on load approximately will make less than 1В in НУ relatively potential «general». Mode of measurements , residual stress on load of short-circuit mode are to be specified in the course of development basing on the reference ...
... 4. Measure voltage relatively pin «SRC» in shorted load mode , when voltage on load approximately will make less than 1В in НУ relatively potential «general». Mode of measurements , residual stress on load of short-circuit mode are to be specified in the course of development basing on the reference ...
FAN4174 / FAN4274 Single and Dual, Rail-to-Rail I/O, CMOS Amplifier nd Dual,
... the rails by more than 0.5 V, the input ESD devices begin to conduct. The output stays at the rail during this overdrive condition. If the absolute maximum input VIN (700 mV beyond either rail) is exceeded, externally limit the input current to ±5 mA, as shown in Figure 22. ...
... the rails by more than 0.5 V, the input ESD devices begin to conduct. The output stays at the rail during this overdrive condition. If the absolute maximum input VIN (700 mV beyond either rail) is exceeded, externally limit the input current to ±5 mA, as shown in Figure 22. ...
PDF
... heating (the electrodes are enclosed in a glass bulb filled with argon gas). Due to this bimetallic strip heats up and bends and there by causes contacts P and Q of the starter to close. When this happens, the choke, the filament electrodes FF of the tube and starter becomes connected in series acro ...
... heating (the electrodes are enclosed in a glass bulb filled with argon gas). Due to this bimetallic strip heats up and bends and there by causes contacts P and Q of the starter to close. When this happens, the choke, the filament electrodes FF of the tube and starter becomes connected in series acro ...
Functional Profile: Analog Input
... The Analog Input functional profile is designed to allow all general purpose analog signals to be represented by a common object. Analog Input signals include current (i.e. 4 - 20 ma), voltage, thermocouple, RTD, etc. These signals may actually represent measurements such as flow rate, temperature, ...
... The Analog Input functional profile is designed to allow all general purpose analog signals to be represented by a common object. Analog Input signals include current (i.e. 4 - 20 ma), voltage, thermocouple, RTD, etc. These signals may actually represent measurements such as flow rate, temperature, ...
Input Source Impedance and Its Effects on DC
... Compared to the previous schematic, the resistance RS has been removed to simplify the analysis. This is, in general, an advantage, because a resistive element in series with the input lead causes power dissipation and penalizes the overall efficiency. The resistance RE is the equivalent series res ...
... Compared to the previous schematic, the resistance RS has been removed to simplify the analysis. This is, in general, an advantage, because a resistive element in series with the input lead causes power dissipation and penalizes the overall efficiency. The resistance RE is the equivalent series res ...
Oscillators fundmentals
... is the loop gain around the feedback loop of the circuit It states that the circuit will sustain steady-state oscillations only at frequencies for which: (i) The loop gain is equal to unity in absolute magnitude, that is, (ii) The phase shift around the loop is zero or an integer multiple of 2π: ...
... is the loop gain around the feedback loop of the circuit It states that the circuit will sustain steady-state oscillations only at frequencies for which: (i) The loop gain is equal to unity in absolute magnitude, that is, (ii) The phase shift around the loop is zero or an integer multiple of 2π: ...
MAX921–MAX924 Ultra Low-Power, Single/Dual
... For proper comparator operation, the input signal can swing from the negative supply (V-) to within one volt of the positive supply (V+ – 1V). The guaranteed common-mode input voltage range extends from V- to (V+ - 1.3V). The inputs can be taken above and below the supply rails by up to 300mV withou ...
... For proper comparator operation, the input signal can swing from the negative supply (V-) to within one volt of the positive supply (V+ – 1V). The guaranteed common-mode input voltage range extends from V- to (V+ - 1.3V). The inputs can be taken above and below the supply rails by up to 300mV withou ...
AN-912 Common Data Transmission Parameters and their Definitions
... power supply voltage applied. This parameter assures that the driver is disabled by an internal circuit at the specified power supply level, even though the enable pin is active. If the driver was enabled, IOS current would be observed, instead of the combined measured current of driver TRI-STATE® l ...
... power supply voltage applied. This parameter assures that the driver is disabled by an internal circuit at the specified power supply level, even though the enable pin is active. If the driver was enabled, IOS current would be observed, instead of the combined measured current of driver TRI-STATE® l ...
Controlling the Speed of the Motor
... voltage if we need more speed, or lower it if we want the motor to slow down. Controlling the Speed of the Motor In examining the Arduino board, however, we notice that there are no analog outputs. The digital outputs can take on two states, 0V and 5V, but nothing in between. It would seem that we a ...
... voltage if we need more speed, or lower it if we want the motor to slow down. Controlling the Speed of the Motor In examining the Arduino board, however, we notice that there are no analog outputs. The digital outputs can take on two states, 0V and 5V, but nothing in between. It would seem that we a ...
SPX1129
... Most types of tantalum or aluminum electrolytic works fine here. For operations of below -25°C solid tantalum is recommended since the many aluminum types have electrolytes that freeze at about -30°C. The ESR of about 51or less and resonant frequency above 500kHz are the most important parameters in ...
... Most types of tantalum or aluminum electrolytic works fine here. For operations of below -25°C solid tantalum is recommended since the many aluminum types have electrolytes that freeze at about -30°C. The ESR of about 51or less and resonant frequency above 500kHz are the most important parameters in ...
TPS54160 60-V, Step-Down LED Driver Design Guide Application Report ..............................................................
... switching frequency. Because this circuit is designed to run under a constant load condition, response time is not a high priority. Higher switching frequencies enable the use of smaller output filter components whereas lower switching frequencies tend to have higher efficiencies. The TPS54160 can b ...
... switching frequency. Because this circuit is designed to run under a constant load condition, response time is not a high priority. Higher switching frequencies enable the use of smaller output filter components whereas lower switching frequencies tend to have higher efficiencies. The TPS54160 can b ...
Solution Set #1 - inst.eecs.berkeley.edu
... Note that IR2 = (VC – 0V) / R2 => IR2 = VC / R2 Substituting into our original expression, we obtain: IS2 + VC/R2 = 0 We know IS2 and R2 thus we can solve for VC = -2V b) Use KCL at B to find IR1 and then VB. We can apply the same method used in part a to calculate IR1 and VB. IR1 + IS2 = 0 => IR1 = ...
... Note that IR2 = (VC – 0V) / R2 => IR2 = VC / R2 Substituting into our original expression, we obtain: IS2 + VC/R2 = 0 We know IS2 and R2 thus we can solve for VC = -2V b) Use KCL at B to find IR1 and then VB. We can apply the same method used in part a to calculate IR1 and VB. IR1 + IS2 = 0 => IR1 = ...
Experiment 1 - RPI ECSE - Rensselaer Polytechnic Institute
... Digital chips: Digital chips are electronic devices that perform logic operations on binary signals. This type of chip forms the basis for all digital computers. There are digital chips that are designed using the same principals as both the Schmitt trigger and the comparator. A Schmitt trigger inve ...
... Digital chips: Digital chips are electronic devices that perform logic operations on binary signals. This type of chip forms the basis for all digital computers. There are digital chips that are designed using the same principals as both the Schmitt trigger and the comparator. A Schmitt trigger inve ...
Local Oscillator / Harmonic Mixer Frequency Measurement System
... frequency counter. Realize that this system cannot distinguish whether the microwaves input are below or above 140 Ghz. This can be determined, however, by increasing or decreasing the frequency of the microwaves (using the mechanical bellows on the EIO) and observing the effect this has on the meas ...
... frequency counter. Realize that this system cannot distinguish whether the microwaves input are below or above 140 Ghz. This can be determined, however, by increasing or decreasing the frequency of the microwaves (using the mechanical bellows on the EIO) and observing the effect this has on the meas ...
Schmitt trigger
In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.