Bizarre Patents
Microwave Oven With Removable Storage Cassette in Dashboard of Motor Vehicle
A microwave oven adapted for use within a motor vehicle dashboard area. The microwave oven has a removable storage cassette, and slidable platforms for securing and serving containers of beverages and foods.
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| Number | Title | Issue Date |
| 7435985 | Zero-crossing point detection circuit A zero-crossing point detection circuit includes a hot line input, a neutral line input, a first zero-crossing point output, and a first optical coupler. The first optical coupler includes a first light-emitting diode (LED) and a first optical transistor. The hot li... | 10/14/2008 |
| 7193337 | System and method utilizing a solid state power controller (SSPC) for controlling an electrical load of a variable frequency three-phase power source A solid state power controller (SSPC) (100) includes a power switching controller (30) and power switching devices (PSDs) (20A, 20B, 20C) for controlling each phase of a multiple-phase load to switch-on or -off at a zero-crossing p... | 03/20/2007 |
| 7063998 | Image sensor having photo diode and method for manufacturing the same An image sensor having a photo diode with improved sensitivity, junction leakage and electron capacity, and a method for manufacturing the image sensor, are provided. The provided image sensor includes a semiconductor substrate and a p-type photo diode region formed... | 06/20/2006 |
| 6897683 | Driver including first and second buffers for driving an external coil or first and second transistors A driver including first and second buffers connected in parallel between a power source and a return path. In one configuration, the buffer outputs are commonly connected to an external coil and optionally a capacitive load. In another configuration, the buffers' o... | 05/24/2005 |
| 6822344 | Determination of ac path states by floating controls An electronic control, with a floating ac power supply, that compares the digital signals produced by connections between ac circuit nodes and digital nodes to determine whether path(s) in ac circuits containing the ac nodes are intact or open. The connections are m... | 11/23/2004 |
| 6664817 | Zero-cross detection circuit In a power supply device including a full-wave rectifying and smoothing circuit powered from a commercial AC power supply via two power supply lines, a switching regulator for separating and stepping down the output from the full-wave rectifying and smoot... | 12/16/2003 |
| 6617838 | Current measurement circuit The present invention is connected across a sense resistor which carries a current of interest. A first pair of cross-coupled switches are connected between the sense resistor and respective input capacitors, and a second pair of cross-coupled switches ar... | 09/09/2003 |
| 6369640 | Zero crossing control structure for a bidirectional switch with a stable threshold A zero crossing control circuit of a bidirectional switch including two transistors of complementary types connected in parallel between the gate of the bidirectional switch and the main reference terminal of the bidirectional switch, the gate of the bidi... | 04/09/2002 |
| 5914628 | Circuit for controlling a triac at the voltage zero The present invention relates to a circuit for controlling a triac at the voltage zero. Two transistors of complementary types are connected in parallel between the gate and the main reference terminal of the triac. The control terminals of the transistor... | 06/22/1999 |
| 5892391 | TRIAC/SCR proportional control circuit A power controller device which uses a voltage-to-frequency converter in conjunction with a zero crossing detector to linearly and proportionally control AC power being supplied to a load. The output of the voltage-to frequency converter controls the "res... | 04/06/1999 |
| 5821635 | Method for controlling the power supplied by an electrical circuit, in particular, a sinusoidal source A method for controlling the power supplied by a sinusoidal source (1) wherein the power supplied is determined, on the one hand, by the integer number of the pulses comprised in a burst which is fully switched through to the load (17) at the output of th... | 10/13/1998 |
| 5686857 | Zero-crossing triac and method A triac (100) utilizes an FET (107) to inhibit firing of a transistor (112) that forms a portion of the SCR of the triac (100). A DMOS transistor (106) is used to supply a substantially constant bias current to the transistor (107) in order to facilitate ... | 11/11/1997 |
| 5654661 | Drive circuit for SCR device An SCR control circuit which drives the SCR between conduction and non-conduction states in accordance with values sensed by a polarity sensing circuit. The control circuit generating a signal for the gate which is of a constant value, at different temper... | 08/05/1997 |
| 5455490 | Power and signal distribution in lighting systems A lighting control system distributes both the alternating current supply and control signals representing desired adjustments to fixture parameters, such as intensity, via connections including power contacts and, for control signals, an electrically iso... | 10/03/1995 |
| 5410193 | Apparatus and technique for connecting a source of zero crossing AC voltage to and disconnecting it from an AC load line An arrangement for controlling a zero crossing switch in order to connect a source of zero crossing AC voltage to and disconnecting it from an AC load line is disclosed herein along with its method of operation. To this end, means are provided for produci... | 04/25/1995 |
| 5319301 | Inductorless controlled transition and other light dimmers A light dimmer with semiconductor power devices coupled between an alternating current supply and a lamp load, in the course of varying average power supplied to the lamp load, transitions the power devices under load between one and the other of substant... | 06/07/1994 |
| 5305191 | Drive circuit for zero-voltage switching power converter with controlled power switch turn-on A drive arrangement and operative scheme for the power switching transistors of a half-bridge power drives the two power switching transistors with unequal duty cycles having conducting durations such that the sum of the conduction intervals substantially... | 04/19/1994 |
| 5294849 | Reflexive circuit A two-terminal device for connection by its two terminals into an electrical circuit having a power source or signal connected to an electrical load or signal receiver and a means for causing selected brief interruptions of the circuit, comprising an elec... | 03/15/1994 |
| 5239209 | Zero crossing detection circuit A zero crossing detection circuit produces an output signal which changes state to indicate the occurrence of a positive-going zero crossing of an AC input signal. The circuit includes first and second input terminals, a current sensitive switch such as a... | 08/24/1993 |
| 5225765 | Inductorless controlled transition and other light dimmers A light dimmer, especially useful for entertainment lighting, provides a high degree of stability in dimmer performance by employing a high level of analog negative feedback and correcting for the undesirable effects on dimmer "curve" by precompensating t... | 07/06/1993 |
| 5216303 | Double solid state relay A new double solid state relay comprising two sets of solid state relays and being constructed in such a way that it can turn on and off a circuit with a voltage very close to zero. It is the only solid type double solid state relay in the world and is sa... | 06/01/1993 |
| 5180963 | Optically triggered high voltage switch network and method for switching a high voltage An optically triggered solid state switch and method for switching a high voltage electrical current. A plurality of solid state switches (350) are connected in series for controlling electrical current flow between a compensation capacitor (112) and grou... | 01/19/1993 |
| 5072143 | Zero point detector for an optically controllable thyristor A thyristor is controlled by a phototransistor whose photo current is reduced by a MOSFET if the thyristor voltage surpasses a prescribed value. The MOSFET is controlled by two current supplies. The first current supply is connected between a gate termina... | 12/10/1991 |
| 5057669 | Temperature control circuit having series connected fail-safe control An improved temperature control circuit having a controller portion with an inhibit input and a temperature responsive circuit portion that includes a resistive portion connected in series with a sensor portion which establishes the control point for the ... | 10/15/1991 |
| 5027020 | Zero voltage switching AC relay circuit A zero voltage switching circuit for controlling current to a serially arranged load and AC voltage source including first and second photosensitive silicon controlled rectifiers having a gate, anode, and cathode terminals, the anode-cathode terminals bei... | 06/25/1991 |
| 4975629 | Inductorless controlled transition and other light dimmers An electronic dimming apparatus adapted for use in a distributed dimmer system, the distributed dimmer system comprising at least one alternating current supply; a plurality of lamp loads at spaced apart locations; a plurality of dimmer enclosures, the di... | 12/04/1990 |
| 4876468 | Thyristor driver turn-off circuit A gate drive circuit for a thyristor has a power supply and an amplifier for supplying current to a gate electrode of the thyristor. A timing signal is generated to initiate conduction of the thyristor. A voltage level signal is generated in response to a... | 10/24/1989 |
| 4701645 | Switching circuit with low conducted electromagnetic interference characteristics A pass network includes a switching element having a non-smooth conduction characteristic in the transition region about zero-crossover of an AC signal to be switched. A bypass network is connected in parallel with the pass network and has a smooth conduc... | 10/20/1987 |
| 4642481 | Solid state hybrid switch A hybrid switch (2) having a solid state circuit (2a) including a thyristor (SCR) for closing and reopening a supply circuit (S,4,6) to a load (L) and contacts including an isolating contact (S1) for connecting power to and disconnecting power from the so... | 02/10/1987 |
| 4626698 | Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices Zero crossing synchronous AC switching circuits are provided which employ piezoelectric ceramic bender-type switching devices for use in supplying loads of a resistive, inductive or capacitive nature. The circuits include zero crossing sensing sub-circuit... | 12/02/1986 |
| 4558226 | Voltage detecting circuit with hysteresis characteristic and high noise immunity A voltage detecting circuit includes an input circuit section including a light emitting diode and a current supplying circuit for supplying a current to this light emitting diode in response to an input voltage, and an output circuit section for generati... | 12/10/1985 |
| 4546239 | Non-continuous sensing apparatus for a temperature control A non-continuous sensing device for a temperature control including A.C. power switching element, a zero-crossing detector, a temperature sensor and a trigger pulse generator for generating a trigger pulse used to trigger the A.C. power switching element ... | 10/08/1985 |
| 4449161 | One shot firing circuit for power tools A one shot firing circuit for electrically powered tools is described which includes a manually operable normally open trigger switch connected electrically in series with a solenoid coil and an AC power source for controlling the supply of electrical pow... | 05/15/1984 |
| 4435651 | Zero voltage switch A zero voltage switch comprises two parallel connected current branches for taking over the D.C. current from a D.C. current source in half cycles of an A.C. voltage and a third current branch for blocking the other two current branches in zero axis cross... | 03/06/1984 |
| 4417199 | Zero crossover triggering circuit for thyristor A power circuit for a precipitator utilizes a pair of silicon controlled rectifiers (SCR's) which are triggered by detecting the zero crossover of a power signal. The power transmitted through the SCR's is determined by the time period from the detection ... | 11/22/1983 |
| 4413193 | Optically coupled solid state relay An optically coupled solid state relay circuit is disclosed. A light emitting diode input circuit is utilized to trigger a photosensitive transistor. A trim resistor in the base of the photosensitive transistor is utilized to adjust the sensitivity of the... | 11/01/1983 |
| 4370567 | Semiconductor switch device suitable for A.C. power control A semiconductor switch device suitable for a.c. power control includes three 4-layer switch components in parallel in a single body of semiconductor material. First and second components are of the same polarity and of opposite polarity to the third compo... | 01/25/1983 |
| 4339670 | Zero voltage switching AC relay circuit An improved zero voltage switching AC relay circuit is disclosed which includes two photo sensitive silicon controlled rectifiers (photo-SCRs) connected in inverse parallel as the active switching elements. The photo-SCRs are triggered into conduction by ... | 07/13/1982 |
| 4333019 | Silicon controlled rectifier trigger circuit A silicon controlled rectifier trigger circuit is responsive to an input AC voltage and provides at least one drive pulse per switch activation to a load circuit. Such load circuit advantageously includes an electric stapler or an electric brad driver. Su... | 06/01/1982 |
| 4333048 | Thyristor control circuits A thyristor control circuit arrangement which overcomes the problem of radio frequency interference comprises two parallel-connected oppositely-poled thyristors (TH1 and TH2) arranged to conduct alternatively for supplying power to a load (L) from an a.c.... | 06/01/1982 |
