charge pump


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charge pump

An electronic circuit that uses capacitors in series to increase the DC source voltage when needed. For example, in EEPROM and flash memory chips, charge pumps create a higher voltage to erase the floating gates before rewriting them. See voltage multiplier.


A Voltage Doubler Pump
These circuit diagrams show how switches S1 and S2 flip the voltage to the positive side of capacitor C1 to charge it to 5v and then to the negative side to multiply the voltage to 10v. The charge at C2 is available to another circuit (Vout) or to a resistance load (RL). If more voltage were required, the output of C2 would go to a third capacitor and so on. The switches are actually transistors, but the circuit symbols for the transistors are simplified in this diagram.
References in periodicals archive ?
The multi feedback ring oscillator is generate available clock phase for the charge pump circuit.
In this project silicon-based nanotechnology will be employed to realize and operate the world-first charge pump based on the transfer of single holes rather than electrons.
Melexis latest pre-driver IC, the MLX83203, deploys EEPROM memory and combined bootstrap and charge pump blocks.
The quad-mode charge pump supports a wide range of input voltages from 2.
NCP5602 and NCP5612 charge pump white LED drivers feature programmable dimming, achieve 87 percent peak efficiency and deliver consistent brightness for handheld and consumer applications.
The NIS5112 isan integrated self-protected, resettable, electronic fuse that utilises a high side N-channel FET, driven by an internal charge pump.
Hydraulics on the loaders were also redesigned with an additional Sauer-Danfoss charge pump that is stacked between the Sauer-Danfoss or Bosch Rexroth gear pumps that power the auxiliary circuit and drive the Bosch Rexroth wheel motors in CTL models and large-frame SSLs and Eaton wheel motors in the medium-frame SSLs.
Include the K-Force hydraulic system, which features a dedicated charge pump that provides an 8 percent increase in hydraulic breakout forces, lift and torque Feature a virtually maintenance-free chain case
75 VDC of control voltage, making it attractive for quick implementation into PLLs where the error voltage can be taken directly from the ICs charge pump circuitry.
The FDDS100H06_F085 smart high-side switch is an N-channel power MOSFET with charge pump, ground-referenced CMOS-compatible input and diagnostic output with integrated protection functions.
By comparison N-channel MOSFETs require a charge pump to provide the gate drive voltage, adding complexity, cost and component count.
2 VDC allowing the error voltage to be taken directly from the IC's charge pump circuitry.