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7362555 |
ESD protection circuit for a mixed-voltage semiconductor device
An ESD protection circuit is implemented for a semiconductor device having a first circuit system operating with a first power supply voltage and a first complementary power supply voltage, and a...
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7359169 |
Circuit for protecting integrated circuits against electrostatic discharges
A circuit is described that protects an integrated circuit from electrostatic discharges or electrical over-stress. The circuit arrangement has first and second protective elements connected in...
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7349190 |
Resistor-less accurate low voltage detect circuit and method for detecting a low voltage condition
A low voltage detect circuit is provided herein for detecting when an external voltage (Vext) drops below a predetermined minimum voltage. In general, the low voltage detect circuit described...
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7342281 |
Electrostatic discharge protection circuit using triple welled silicon controlled rectifier
Provided is an electrostatic discharge (ESD) protection circuit using a silicon controlled rectifier (SCR), which is applied to a semiconductor integrated circuit (IC). A semiconductor substrate...
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7327544 |
Battery protection device
A battery protection structure is described. The structure provides battery overcharging protection while allowing for minimal battery voltage drop during normal battery operation. One resistance...
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7327543 |
Method and device for switching a semi-conductor circuit breaker
The invention relates to a method for switching a semi-conductor circuit breaker by means of which the resistance of the breaker gap of the semi-conductor circuit breaker is controlled by a control...
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7326964 |
Light emitting diode package with protective function against electrostatic discharge
An LED package having an MEMS switch operated by electrostatic force, capable of continuously protecting an LED from excessive current due to electrostatic discharge. The LED package includes a...
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7323752 |
ESD protection circuit with floating diffusion regions
This invention discloses an electrostatic discharge (ESD) protection circuit that comprises a substrate of a predetermined type, at least one MOS transistor being coupled to a pad of an integrated...
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7312672 |
Local oscillating circuit for receiving high-band and low-band signal
A local oscillating circuit includes an integrated circuit that has an oscillating transistor, protection diodes against electrostatic damage, and first and second terminals each being connected to...
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7310025 |
Oscillator circuit and integrated circuit incorporating the same
The oscillator circuit comprises a capacitor and first to fourth constant current supplies and switches are connected to the capacitor. Both terminals of the capacitor are used for charges and...
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7307822 |
Semiconductor integrated circuit apparatus
A semiconductor integrated circuit device is disclosed, which comprises power supply system circuits, in which power supply terminals and/or ground terminals are separated from each other between...
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7295412 |
Protection circuit for power management semiconductor devices and power converter having the protection circuit
A collector voltage of a power management semiconductor device is detected by a first comparator, and when the detected collector voltage exceeds a first reference voltage, the first comparator...
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7279773 |
Protection device for handling energy transients
A protection device for handling energy transients includes a plurality of basic unit Zener diodes connected in series to achieve a desired breakdown voltage. Each of the basic unit Zener diodes is...
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7268398 |
ESD protection cell with active pwell resistance control
In an NMOS device, the turn-on voltage or the triggering voltage is reduced by adding an NBL connected to an n-sinker and contacted through an n+ region, which is connected to a bias voltage. The...
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7265952 |
Two-terminal protecting circuit
An integrated circuit provides a load with back-flow and open-circuit protection and includes a load, a trigger circuit, and a shunt circuit. The integrated circuit provides large-size LED displays...
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7245471 |
Discharge device for inductive devices
A method and apparatus for protecting an energized inductive device such as an electromagnet from an open circuit, i.e., the loss of the power source for the inductive device. A diode is connected...
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7199990 |
Device for short-circuiting two electric lines for reducing a voltage differential
A device is for short-circuiting a first electric line with a second electric line in order to reduce a voltage differential. At least one first electronic switching device is provided between the...
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7193828 |
Video protection circuit providing short to battery protection while maintaining termination impedance
The present invention provides for a transistor in series with the video input of a video input device prior to the termination resistor. The transistor is utilized due to the large amount of power...
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7170729 |
Semiconductor integrated circuit device
A semiconductor integrated circuit of the present invention includes, between a power line 1 and a ground line 2 , an NMIS transistor 3 capable of supplying fixed signals with low and high...
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7154720 |
Semiconductor integrated circuit device with enhanced resistance to electrostatic breakdown
A semiconductor integrated circuit device having a plurality of internal circuits connected to different power lines, and an inter-circuit signal wire or a branched wire along these internal...
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7154719 |
Circuit for electrostatic discharge protection
A circuit providing protection against electrostatic discharge (ESD) for internal elements of an Integrated Circuit (IC). In one example, a protection circuit comprises a PMOSFET resistor (R)...
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7116567 |
GaN semiconductor based voltage conversion device
A converter is provided having an AC input and a DC output. The converter includes a rectifier that receives the AC input and that provides a rectifier output, a series connected current to...
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7106567 |
Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods
The present invention relates to a hard disk drive system having overvoltage protection circuits for various types of overvoltage conditions. For example, the system includes one or more hard disk...
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7099133 |
Sensor protection circuit
The invention relates to a sensor protection circuit for at least one sensor ( 6 ), especially in a motor vehicle electric system, comprising at least one supply line ( 3, 4 ) for supplying current...
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7071514 |
Electrostatic discharge protection device
A compact ESD protection device is described that uses the reverse breakdown voltage of a base-emitter junction as a trigger diode to switch a transistor that shunts the forward bias ESD current to...
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7050282 |
Power supply clamp circuit
A power supply clamp circuit for preventing damage to an integrated circuit due to electrostatic discharge. The power supply clamp circuit includes a voltage generator electrically connected to a...
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7030501 |
Semiconductor device and switching element
A conventional one-chip dual MOSFET has a structure in which two chips are arranged side by side and drain electrodes are short-circuited. Therefore, the mounting area thereof is large, and the...
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6980116 |
Method for failure detection in a radio frequency device
A method for detecting a failure in a radio frequency (RF) device ( 200 ) that includes a transistor ( 210 ) having a first terminal at an RF input ( 220 ), a second terminal at an RF output ( 260...
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6906573 |
Semiconductor circuit and photocoupler
A semiconductor circuit disclosed herein includes a first output MOS transistor which includes a first terminal connected to a first power source and a second terminal connected to an output...
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6870202 |
Surge protection semiconductor device
A pnpn thyristor element Thy 1 and six pn diode elements D 1, D 2, D 3, D 4, D 5, and D 6 are formed in a semiconductor substrate of a first conductivity type, and separated into six regions...
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6822295 |
Overvoltage protection device using pin diodes
A device and method of manufacture for a low capacitance overvoltage protection device. This is accomplished through the use of PiN diodes to shunt overvoltage away from internal circuit elements....
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6791810 |
Protection circuit of field effect transistor and semiconductor device
There is provided a protection circuit of a field effect transistor having a structure which can be fabricated without restricting a pattern layout and without increasing a process step. A...
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6775116 |
Method and apparatus for preventing buffers from being damaged by electrical charges collected on lines connected to the buffers
An apparatus and method are provided for preventing buffers used to reduce delays on long lines of an IC from being damaged due to charge that collects on the buffers during manufacturing. In...
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6734504 |
Method of providing HBM protection with a decoupled HBM structure
A semiconductor device that includes an integrated circuit and an HBM structure formed on different semiconductor substrates is provided. The HBM structure may include input or output or...
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6678130 |
Voltage regulator with electrostatic discharge shunt
An electronic circuit consists of a voltage regulator and an electrostatic discharge (ESD) shunt. The voltage regulator maintains a prescribed voltage for the voltage supply of the chip. The ESD...
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6674621 |
IC PMOS Schottky reverse bias protection structure
The present invention relates to a reverse bias protection structure which comprises a PMOS transistor structure having a drain portion, a gate portion, a source portion and a backgate portion,...
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6671154 |
Surge protector for high speed data networks
A surge protector for highspeed data networks is provided wherein a circuit board having a ground plane formed on one side of the circuit board, has respective pairs of conductive traces forming...
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6664750 |
D.C. motor bridge coil driver
An H-type motor bridge coil driver circuit is implemented with an electronic switch in each leg segment of an H-shaped circuit, this bridge circuit having its side legs each connected between a...
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6650164 |
Off-leak current cancel circuit
An off-leak current cancel circuit includes an input protection circuit having a first protection transistor connected between a terminal and a high power potential, and a second protection...
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6643109 |
Fully synthesisable and highly area efficient very large scale integration (VLSI) electrostatic discharge (ESD) protection circuit
An electrostatic discharge (ESD) protection circuit comprises a P-channel field effect transistor (PFET), a buffer and a damping network to provide improved protection for an integrated circuit...
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6633470 |
Overvoltage protection circuit for bidirectional transmission gate
A clamping MOS transistor-based overvoltage protection circuit is provided for a bidirectional transmission gate FET coupled between input and output ports. When the voltage applied to the input...
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6614061 |
Electrostatic discharge-protection semiconductor device
The present invention provides an electrostatic discharge-protection device located between a pad and a specific voltage point. The electrostatic discharge-protection device has a P-type substrate....
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6556401 |
Circuit arrangement for overload protection
A circuit arrangement for overload protection, particularly for an evaluation electronics unit for child-seat detection in a vehicle, has first and second input connections for an input voltage...
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6541945 |
Apparatus and method for sharing two or more amplifiers to an array of pass circuits in a regulator circuit
An apparatus and method for a regulator circuit includes multiple amplifier circuits, multiple bias stages, and a shunt stage. Each bias stage includes a set of MOS transistors with respective...
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6515839 |
Electronic discharge protection system for mixed voltage application specific circuit design
An ESD protection system that makes use of several different types of over-voltage protection devices provides ESD conduction paths between different power lines. For example, the system may employ...
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6462601 |
Electrostatic discharge protection circuit layout
An ESD protection circuit layout. The ESD protection circuit layout has a first ESD protection device, a second ESD protection device, a first CDM ESD protection device, a second CDM ESD protection...
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6459555 |
Integrated circuit comprising analog and digital sub-circuits with improved over-voltage protection and reduced substrate-noise coupling
An integrated circuit comprising a substrate with analog and digital sub-circuits provided with different supply terminals, including V dd and V ss supply terminals for the analog part and a V dd...
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6456474 |
Semiconductor integrated circuit
To improve the reliability by properly operating an overvoltage protection circuit. In case of a semiconductor integrated circuit of the present invention, the source electrode 52 s of an nMOS...
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6452770 |
Power buss inhibit through data input/output lines
In a CMOS integrated circuit card configuration operating upon a received data input stream and having a common power buss for the individual integrated circuits thereof, the invention comprises...
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6452235 |
Floating body ESD protection circuit
A floating body ESD protection circuit positioned between and coupled to an I/O pad and an internal circuit. A p-type depletion mode transistor is used to control the body of an n-type enhancement...
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