Matches 151 - 200 out of 377 < 1 2 3 4 5 6 7 8 >
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5729172 Booster circuit capable of suppressing fluctuations in the boosted voltage  
In a booster circuit for use in a semiconductor integrated circuit device that includes: a voltage detection circuit for detecting the boosted voltage with respect to a reference voltage; a pulse...
5717581 Charge pump circuit with feedback control  
A charge pump circuit with negative current feed back is disclosed. The charge pump circuit consists of charge pump stages, switch circuits in between the stages, and a feedback loop to control the...
5706188 Electronic circuit for converting electrical energy  
A multilevel converter including, in particular, a capacitor (C1, C2, . . . , Cn) for each of its cells, and control means comprising means (VMO1, VMO2, . . . , VMOn) for evaluating the mean...
5694308 Method and apparatus for regulated low voltage charge pump  
Generation of an output voltage (28) greater than that of a reference voltage (20) is accomplished using a self starting low voltage charge pump (10). A start-up clock circuit (12) comprising a...
5691873 Apparatus to generate magnetism  
The present invention is to provide means to attain an improved current efficiency and a stabilized operation even when used to generate high-power magnetic pulses at shortened pulse intervals. The...
5650671 Charge pump circuit  
A charge pump circuit including a number of pull-up stages connected in parallel with one another between a reference potential line and an output line. Each stage includes a capacitor having a...
5636115 Voltage booster circuit  
A voltage booster circuit using at least one capacitor. This capacitor receives a clock signal at one terminal, and a second terminal of the capacitor is connected, firstly, to a supply terminal by...
5635776 Charge pump voltage converter  
A charge pump circuit which has a simple circuit configuration yet can boost the power source voltage 4 or 8 times. The + side electrode of a capacitor C1 is connected to an input terminal 10 via a...
5627739 Regulated charge pump with low noise on the well of the substrate  
A regulated charge pump is provided to boost an amount of voltage while minimizing the well voltage fluctuation during the operation. The charge pump includes a charge pump core which has a first...
5608614 Power converter  
A power converter has two switched capacitor circuits each including at least a plurality of sets of capacitors and switching elements, first of which circuits is provided for supplying a DC power...
5604352 Apparatus comprising voltage multiplication components  
Apparatus for irradiating a substrate is compact, transportable, rugged, high powered, and highly efficient. It includes an improved high voltage inductor (1-230), an improved power transfer...
5600551 Isolated power/voltage multiplier apparatus and method  
A voltage multiplier and capacitive isolation power supply using capacitors, diodes and first and second clock signals that are out-of-phase with respect to each other. When the first clock signal...
5568035 Variable-capacitance power supply apparatus  
A variable-capacitance power supply apparatus has an inexpensive structure for variably supplying a desired high power to a load by selecting an appropriate total capacitance for storing charge. A...
5559687 Voltage multiplier for high output current with stabilized output voltage  
A voltage multiplier for relatively high output current has its design output voltage stabilized and rendered independent of process spread, temperature, supply voltage and output current level, by...
5554890 Ignition circuit for a squib in an air bag in a vehicle  
An object of the present invention is provide an ignition circuit for a squib in an air bag in a vehicle able to supply sufficient energy to ignite the squib which does not use converter or a high...
5546296 Charge pump  
A charge pump assembly includes a storage capacitor having one terminal for a first supply potential and another terminal for pickup of an output potential. The assembly has one charge pump or two...
5543668 Charge stacking on-chip high-voltage generator and method  
A charge stacking, high voltage generating circuit is provided wherein a plurality of capacitors are charged in parallel and discharged in series through a single diode to an output terminal. A...
5502629 DC-DC converter  
A DC-DC converter includes first and second MOS transistors which selectively connect a first capacitor to a DC power supply so as to charge the first capacitor, and third and fourth MOS...
5493486 High efficiency compact low power voltage doubler circuit  
What is described is a high efficiency voltage doubler (100). The high efficiency voltage doubler (100), has a charge-pump capacitor (30), an inverter (18), a coupling capacitor (24), a...
5493543 Capacitive charge pump driver circuit for piezoelectric alarm  
A capacitive charge pump circuit and associated method is provided for outputting an output voltage which has a magnitude which is an integer multiple of the magnitude of a power supply voltage...
5483434 High voltage generator having output current control  
High voltage generator including several voltage multiplying stages connected in series, each having a diode and a capacitor one terminal of which being connected to the cathode of the respective...
5463542 DC/DC converter and RS-232 interface circuit using the same  
There is provided a circuit for achieving a serial communication at the standard voltage defined in the RS-232 interface communication standard when the signal processing voltage of the host side...
5446644 DC voltage divider  
A DC voltage divider for converting electric energy which includes capacitors, diodes and switches. The divider is a device for unidirectional transmission, on the condition that its input and...
5444310 Apparatus for operating discharge lamps  
An apparatus for operating discharge lamps with a stable electric current supply and minimal dimensional area requirements. The apparatus includes an input power source coupled across a capacitor,...
5440156 Metal oxide semiconductor field effect transistor cell adaptable for use in an integrator  
A MOSFET wherein cell includes a MOSFET transistor having a gate connected to an input voltage signal for integration, a source grounded through a high resistance, and a drain connected to a power...
5438504 Voltage multiplier circuits or the like  
A voltage multiplier has first, second, and third capacitors, each having first and second plates. The multiplied output voltage is developed between the first and second plates of the third...
5436587 Charge pump circuit with exponetral multiplication  
A charge pump circuit comprises a plurality of voltage doubler circuits connected together such that a first voltage output generated by a first portion of a kth one of the voltage doubler circuits...
5423078 Dual mode power amplifier for analog and digital cellular telephones  
The present invention relates generally to RF power amplifiers for portable cellular radiotelephones, and more particularly, to dual-mode cellular radiotelephones. A power supply network enables...
5416691 Charge pump circuit  
An improved charge pump circuit includes a charge pump capacitor having first and second terminals for charging in first and second polarities; a current source device for supplying current...
5402303 Remotely-powdered and remotely-addressed zero-standby-current energy-accumulating high-power solenoid drivers, particularly for systems that are micropowered  
One or more loads, commonly solenoids, requiring a high-power drive--typically 500 ma. 7.5 v.d.c.--are selectively actuated by energy that is accumulated over time--typically over several hundred...
5397928 Voltage tripler using a charge pump having a single multiplexed charge transfer capacitor  
A voltage tripler which uses a charge pump with a single charge transfer capacitor to produce the required voltage is disclosed. The voltage tripler in conjunction with an inverter is useful for...
5382835 Integrated Marx generator  
An integrated Marx generator circuit is constructed in one assembly from a housing with two oil-filled cavities. First and second capacitors each include two sets of spaced apart capacitor plates....
5345161 Power supply system for an electromagnetic riveting apparatus  
The power supply, useful with an electromagnetic force apparatus such as a riveter or a bolt inserter, includes two capacitor banks which are charged through charging doubler modules. Each charging...
5311067 High performance pulse generator  
The device is a compact Marx-type generator capable of producing a high-vage burst of pulses having risetimes less than 10 nanoseconds at repetition rates up to 10 kHz. High-pressure hydrogen...
5306954 Charge pump with symmetrical +V and -V outputs  
Charge pump circuitry is implemented using a voltage shifting technique to generate a symmetrical bipolar voltage. The symmetrical bipolar voltage charge pump power supply can be fabricated as an...
5301097 Multi-staged charge-pump with staggered clock phases for providing high current capability  
A multiple staged charge pump network with staggered clock phases for pumping a first voltage to a second voltage with high current capability. The charge pump includes multiple serial charge pumps...
5285370 Circuit arrangement for generating a high DC voltage  
A circuit arrangement for generating a high DC voltage utilizes a voltage multiplier cascade which requires two alternating, non-overlapping pulse trains which are generated by a pulse generator....
5255660 Semiconductor switch, in particular as a high-voltage ignition switch for internal combustion engines  
The invention relates to a semiconductor switch, in particular as an ignition voltage switch for applying an ignition voltage to a spark plug of an internal combustion engine, having a cascade...
5237209 Bipolar voltage doubler circuit  
A charge pump circuit for providing a bipolar voltage output at substantially double the unipolar voltage input source includes first and second voltage input terminals; a first and a second...
5187421 Electrostatic transformer  
The present invention is an electrostatic transformer, and more particularly an electrostatic transformer capable of electrically insulating the input and output sides thereof without using any...
5179289 Cascaded transformerless DC-DC voltage amplifier with optically isolated switching devices  
A very high voltage amplifier in which plural cascaded banks of capacitors are switched by optically isolated control switches so as to be charged in parallel from the preceding stage or capacitor...
5159543 Interface circuit including DC/DC converter  
In an interface circuit including a transmitting and receiving circuit which operates with an electric voltage supplying source composed of a DC/DC converter, the DC/DC converter includes a signal...
5157272 Pulse forming networks  
In a pulse forming electrical circuit suitable for use with a gas discharge laser having continuously falling impedance, there is provided a saturable inductor operable to cause the output...
5132895 Variable charge pumping DC-to-DC converter  
Two storage capacitors connected in parallel with a constant current source in a charging mode and connected in series in a second mode to increase output voltage. A comparator senses the amplitude...
5105097 Passive magnetic switch for erecting multiple stage, high-pulse-rate voltage multipliers  
Megavolt voltage multipliers having an output impedance of less than 10 ohms and capable of operating at high pulse repetition frequencies, are switched with high performance saturable core...
5095223 DC/DC voltage multiplier with selective charge/discharge  
A DC/DC voltage multiplier comprises a charging source (Vs) connected between first and second terminals (Vdd and Vss), a storage capacitor (Ctr) connected between the first terminal and a third...
5066871 Maximum swing cascode circuit for a bipolar charge pump  
A maximum swing bipolar charge pump retains a cascode switching configuration for high breakdown. The charge pump includes a charge pump capacitor with a first plate connected to supply in the...
5051882 Three reservoir capacitor charge pump circuit  
A charge pump circuit operates from a voltage provided on an input rail at a first potential relative to a reference potential rail and that provides second and third potentials relative to the...
5043858 High-voltage generating circuit having improved voltage boosting efficiency  
A high-voltage generating circuit for generating a high voltage from a power voltage with a high efficiency is disclosed. The high-voltage generating circuit comprises a series circuit of a...
5036229 Low ripple bias voltage generator  
A charge pump essentially incorporating parallel connections of low capacity charge pumps, where each low capacity charge pump is controlled by a clock signal, where the clock signal associated...
Matches 151 - 200 out of 377 < 1 2 3 4 5 6 7 8 >