MAX1968/MAX1969 Power Drivers for Peltier TEC Modules General Description Features
... thermoelectric cooler (TEC) modules. Both devices utilize direct current control to eliminate current surges in the TEC. On-chip FETs minimize external components while providing high efficiency. A 500kHz/1MHz switching frequency and a unique ripple cancellation scheme reduce component size and nois ...
... thermoelectric cooler (TEC) modules. Both devices utilize direct current control to eliminate current surges in the TEC. On-chip FETs minimize external components while providing high efficiency. A 500kHz/1MHz switching frequency and a unique ripple cancellation scheme reduce component size and nois ...
Viva Voce on Galvanometer to Ammeter or Voltmeter
... Ans. It is an instrument used to measure the potential difference between two points directly in volts , when connected across those points. Q. 22. Why resistance of voltmeter should be high? Ans. A voltmeter is connected in parallel combination to measure the potential difference. In order to read ...
... Ans. It is an instrument used to measure the potential difference between two points directly in volts , when connected across those points. Q. 22. Why resistance of voltmeter should be high? Ans. A voltmeter is connected in parallel combination to measure the potential difference. In order to read ...
Secure Application of Transformer Differential Relays for Bus
... bus protection application, we must select a slope setting that will be secure (not false trip) for faults outside of the zone of differential. The primary difficulty is preventing a trip caused by false differential current due to current transformer (CT) saturation. The percentage restraint princi ...
... bus protection application, we must select a slope setting that will be secure (not false trip) for faults outside of the zone of differential. The primary difficulty is preventing a trip caused by false differential current due to current transformer (CT) saturation. The percentage restraint princi ...
Operational Amplifiers
... Note that the gain given by Equation (1.15) is the same as that obtained in the general case as given by Equation (1.11) as A → ∞ . In order to obtain additional intuition on the operation of this circuit let’s consider the two cases for Vin. 1. For Vin >0 the current I1 will be flowing as indicate ...
... Note that the gain given by Equation (1.15) is the same as that obtained in the general case as given by Equation (1.11) as A → ∞ . In order to obtain additional intuition on the operation of this circuit let’s consider the two cases for Vin. 1. For Vin >0 the current I1 will be flowing as indicate ...
Sepam Series 20
... Sepam Series 20 Selection Table .................................................... 4 ...
... Sepam Series 20 Selection Table .................................................... 4 ...
Discrimination with LV power circuit-breakers
... comparing the time/current curves, provided that time tc is at least thirty or forty milliseconds. Below that time, these curves are not sufficiently precise to reach a verdict with certainty. Moreover, the time and current are not then the only discriminating criteria. Depending on the situation, i ...
... comparing the time/current curves, provided that time tc is at least thirty or forty milliseconds. Below that time, these curves are not sufficiently precise to reach a verdict with certainty. Moreover, the time and current are not then the only discriminating criteria. Depending on the situation, i ...
MB3771 Power Supply Monitor
... Instantaneous breaks or drops in the power supply can be detected as abnormal conditions by the MB3771 within a 2 µs interval. However because momentary breaks or drops of this duration do not cause problems in actual systems in some cases, a delayed trigger function can be created by connecting cap ...
... Instantaneous breaks or drops in the power supply can be detected as abnormal conditions by the MB3771 within a 2 µs interval. However because momentary breaks or drops of this duration do not cause problems in actual systems in some cases, a delayed trigger function can be created by connecting cap ...
MC33800, Engine Control Integrated Circuit
... The CCD2_REC pin is connected to the node between the internal sense resistor and power MOSFET driver. The device uses the differential voltage between CCD2_REC and CCD2_OUT to determine the load solenoid current. ...
... The CCD2_REC pin is connected to the node between the internal sense resistor and power MOSFET driver. The device uses the differential voltage between CCD2_REC and CCD2_OUT to determine the load solenoid current. ...
The Physics of Implantable Devices
... High total current flow as a result of low resistance Leaks in the hose reduce the resistance, so more water discharges, but is all of it going to the nozzle? ...
... High total current flow as a result of low resistance Leaks in the hose reduce the resistance, so more water discharges, but is all of it going to the nozzle? ...
ltc1694.pdf
... The LT C®1694 is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. The LTC1694 is also compatible with the Philips I2CTM Bus. The LTC1694 allows multiple device connections or a longer, more capacitive interconnect, ...
... The LT C®1694 is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. The LTC1694 is also compatible with the Philips I2CTM Bus. The LTC1694 allows multiple device connections or a longer, more capacitive interconnect, ...
1. Noise sources in MOSFET transistors.
... calculation of the noise due to these resistors is more complicated as from the poly gate, because of the distributed nature of the resistors. When we compare both resistors we see that the value of Rbv is much larger as Rbl. Due to this for noise calculations we can neglect Rbv. The resistor Rbv is ...
... calculation of the noise due to these resistors is more complicated as from the poly gate, because of the distributed nature of the resistors. When we compare both resistors we see that the value of Rbv is much larger as Rbl. Due to this for noise calculations we can neglect Rbv. The resistor Rbv is ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.