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7619450 |
Start-up circuit for providing a start-up voltage to an application circuit
A startup circuit for providing a startup voltage from a high voltage DC bus voltage to an application circuit, the startup circuit comprising an integrated circuit package for at least a control...
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7616493 |
Non-volatile semiconductor memory device
When a voltage level detector detects that a supply voltage reaches a recovery voltage level that requires a recovery operation, a signal generator generates a recovery operation instructing signal...
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7609045 |
Reference voltage generator providing a temperature-compensated output voltage
The present invention concerns a reference voltage generator ( 40 ) that provides a reference voltage (Vref new). The voltage generator ( 30 ) is operated at a supply voltage (Vdd) being lower than...
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7606085 |
Semiconductor device and control method of the same
The present invention is a semiconductor device including: a resistor R 11 (first resistor part) and an FET 15 (second resistor part) connected in series between a power supply Vcc (first power...
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7602236 |
Band gap reference voltage generation circuit
There is provided a band gap reference voltage generation circuit capable of reducing wake up time during transition from an idle mode to a normal mode and further capable of removing the RF noise...
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7598801 |
Voltage regulator, voltage regulating method thereof and voltage generator using the same
A voltage regulator and a voltage regulating method thereof and a voltage generator using the voltage regulator are disclosed by the present invention. The voltage regulator of the present...
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7592862 |
Digital temperature sensing device using temperature depending characteristic of contact resistance
A digital temperature sensing device uses temperature depending characteristic of contact resistance of a MOS transistor and a self-refresh driving device adjusts its self-refresh period depending...
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7592861 |
Reference voltage generation circuit, and constant voltage circuit using the reference voltage generation circuit
A reference voltage generation circuit includes: a first field-effect transistor that is an n channel-type field-effect transistor of a depletion-type, wherein one terminal of the first...
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7573323 |
Current mirror bias trimming technique
A reference current is generated by a current mirror circuit. An operational amplifier of a feedback circuit generates a control voltage for control of the feedback circuit transistor. The size of...
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7570039 |
Apparatus and method for control supply output voltage techniques to track battery voltage
A voltage regulation and battery charging system is provided. The system can simultaneously provide a regulated output voltage and charge a battery. The system includes a battery charger circuit, a...
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7567119 |
Current limiting protection circuit
A power supply management device including a current limiting protection circuit. The power supply management device may include an output terminal, a first transistor, a replication circuit, a...
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7564300 |
High voltage generator
A high voltage generator includes a charge pump configured to output a pumping voltage in accordance with a first clock signal and a second clock signal having a level opposed to a level of the...
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7564299 |
Voltage regulator
In some embodiments, regulator circuits are provided.
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7560981 |
Controlling apparatus for controlling a plurality of LED strings and related light modules
A controlling apparatus for controlling a plurality of LED strings and related light modules is disclosed, wherein each of the plurality of LED strings has a first terminal being electrically...
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7554312 |
DC-to-DC voltage converter
According to an embodiment of the invention, a method and apparatus for DC voltage conversion are described. According to one embodiment, a voltage converter comprises a current mirror, the current...
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7551020 |
Enhanced output impedance compensation
A compensation circuit for compensating an output impedance of at least a first MOS device over PVT variations to which the first MOS device may be subjected includes a first current source...
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7545203 |
Internal voltage generation circuit
An inter voltage generation circuit includes a pumping voltage generator to generate a pumping voltage, a level comparator to compare the pumping voltage level with a peripheral voltage level and...
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7538602 |
Semiconductor integrated circuit with stepped-down voltage generating circuit
A semiconductor integrated circuit includes a voltage generating circuit configured to generate a predetermined voltage, an NMOS transistor configured to receive at a gate node thereof the...
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7535282 |
Dynamic well bias controlled by Vt detector
The p- well back bias for NCH transistors in a DRAM sense amplifier circuit is dynamically adjusted. Preferably, during sensing, the p- well back bias for the NCH transistors of the sense amp is...
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7525370 |
Circuits for generating a reference voltage
A circuit of generation of a reference voltage by a first MOS transistor connected to a first terminal of application of a supply voltage, the first transistor being in series with a second MOS...
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7521989 |
Distribution of an electric quantity through a circuit
A method of distributing an electric quantity through an electronic circuit for local exploitation by at least one circuit block of the electronic circuit that includes providing in the electronic...
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7518437 |
Constant current circuit and constant current generating method
A constant current circuit and a constant current generating method, wherein when a voltage in substantially no temperature dependence is applied to an element to output a constant current,...
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7518436 |
Current differencing circuit with feedforward clamp
A current difference circuit is provided. The currents difference circuit provides an output current that is the difference of two input currents, while employing feedforward to clamp the output...
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7518352 |
Bootstrap clamping circuit for DC/DC regulators and method thereof
A clamping circuit of a DC/DC regulator includes a reference current generator to generate a reference current. The reference current can be based upon a specified maximum voltage across a...
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7515487 |
Internal reference voltage generating circuit for reducing standby current and semiconductor memory device including the same
An internal reference voltage generating circuit that reduces a standby current and the number of pins of a semiconductor memory device, in which a reference voltage is provided to an input buffer...
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7514987 |
Bandgap reference circuits
Bandgap reference circuits capable operating in low voltage environments. In the bandgap reference circuit, a current generation circuit generates an output current obtained by combining a first...
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7511563 |
Ripple current reduction circuit
A ripple current reduction circuit includes a supply node coupled to the output of a high ripple voltage source such as a charge pump. A first current mirror is referred to the supply node and...
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7508255 |
Power supply controller
A power supply controller including a MOSFET between a power source and a load, a ground terminal, a gate driving circuit structured to control a gate potential of the MOSFET to turn on power and...
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7508252 |
Semiconductor integrated circuit device
A semiconductor integrated circuit device has a boosted-voltage power-supply circuit generating a boosted voltage, an internal circuit being driven with the boosted voltage, and a control circuit...
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7505240 |
Overcurrent protection device for semiconductor element
An overcurrent protecting device for protecting a semiconductor element from an overcurrent includes: the semiconductor element; a shunt resistor for detecting the overcurrent when the electric...
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7498869 |
Voltage reference circuit for low voltage applications in an integrated circuit
An integrated circuit that includes at least one tunneling device voltage reference circuit for use in low voltage applications is disclosed. The tunneling device voltage reference circuit includes...
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7498867 |
Current drive circuit
In the current drive section, a wiring for setting a substrate potential is separately provided from a wiring of a power potential VDD so that substrate potentials of P-channel MOS transistors...
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7498855 |
Power-on clear circuit
A power-ON-clear circuit has a reset period when the power supply stops temporarily (or instantaneously) and then that power supply is restored. The power-ON-clear circuit 30 of a semiconductor...
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7495505 |
Low supply voltage band-gap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying band-gap reference current
A low supply voltage band-gap reference circuit is provided, which includes a positive temperature coefficient current generation unit and a negative temperature coefficient current generation...
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7482859 |
Automatic current trimming method & circuits
Techniques pertaining to a circuit architecture capable of controlling a current source to a predefined precision are disclosed. According to one aspect of the present invention, an automatic...
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7482858 |
Temperature-sensitive current source
A temperature-sensitive current source includes a first MOS transistor having a source coupled to a first voltage; a second MOS transistor having a source coupled to the first voltage, and a gate...
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7482857 |
Unified bandgap voltage and PTAT current reference circuit
A circuit provides a bandgap reference voltage that is substantially insensitive to temperature variations of an operating reference circuit.
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7479821 |
Cascode circuit and semiconductor device
A reference voltage circuit having a high power supply rejection ratio, and can operate at low voltage is provided. The reference voltage circuit includes a bias circuit constructed such that a...
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7477097 |
Internal voltage generating circuit
An internal voltage generating circuit detects a level of a back bias voltage or a pumping voltage and controls a period of an oscillating signal based on the result of counting timing when the...
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7474143 |
Voltage generator circuit and method for controlling thereof
A voltage generator circuit which is capable of preventing the generation of a through current in a transition to a power-down mode to reduce current consumption. The voltage generator circuit...
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7471139 |
Voltage buffer for capacitive loads
A voltage buffer for capacitive loads isolates the load from the feedback loop. Using a variation of a follower arrangement, a second transistor outside of the feedback loop introduced. The current...
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7471138 |
DC output voltage circuit with substantially flat PSRR
The disclosed technology provides circuitry for providing a DC output voltage. In accordance with one aspect of the invention, the circuit includes a power connection and a transistor connected to...
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7456681 |
Power supply voltage step-down circuit, delay circuit, and semiconductor device having the delay circuit
A delay circuit has a circuit structure dominated by an NMOS or a PMOS transistor. The delay circuit is supplied with, as a power supply voltage, an output voltage of a power supply voltage...
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7456680 |
Internal voltage generating circuit and semiconductor integrated circuit device
A voltage for reference at a voltage level higher than a target value is produced from a constant current provided from a constant current generating circuit, and is subjected to resistance...
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7456678 |
Apparatus and method for providing a temperature compensated reference current
An apparatus and method for providing a temperature compensated reference current in an electronic device is disclosed. The temperature compensated reference current is compensated for temperature...
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7449940 |
Buffer circuit
A buffer circuit capable of switching between input mode and output mode includes a first transistor for outputting a prescribed voltage to an input/output terminal depending on a conductive state...
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7439798 |
Regulator circuit
A regulator circuit includes: a detection circuit, for outputting a feedback voltage in accordance with an output voltage; a reference voltage input section; a feedback voltage input section; an...
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7436243 |
Integrated circuits with on-chip AC noise suppression
On-chip AC noise suppression is provided for a target circuit within an integrated circuit chip. A power supply line filter is provided in the power supply line that feeds the target circuit. The...
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7432758 |
Voltage regulator for semiconductor memory
A voltage regulator as a stable power supply to internal circuits in a semiconductor memory device is provided. This regulator includes a comparing unit, a first driver transistor, a feedback unit,...
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7429888 |
Temperature compensation for floating gate circuits
A system and method is provided for improving the accuracy of the voltage reference output of a floating gate voltage reference circuit by minimizing the temperature coefficient, Tc. The system and...
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