A heatable glazing comprising a pane of glazing material with a first portion delimited by a first and a second bus bars wherein a voltage VI is applied and a second portion of the pane in need of rapid heating delimited by the second bus bar and a third bus bar wherein a voltage V2 is applied. The voltage VI is converted into a voltage V2 within the second portion by an electrical converter DC/DC.

An assembly, comprising a heat-dissipating first resistor, control device for controlling the first resistor, as well as a grounded component, which lies on a potential without direct relation to a control voltage. The first resistor is arranged in spatial vicinity of the grounded component and comprising a first and a second connection. The control device comprises a first switching device and a second switching device. The first switching device, first resistor and second switching device form a series connection. A compensation device is configured such that in the On-state of the first resistor a voltage is applied between the first and second connection, wherein the resistor in the off-state is held on an in-between potential that lies between the first and the second potential, and/or the control device is configured to trigger the first resistor in a pulse width modulated fashion, such that the first as well as the second switching device are switched synchronously.

Systems and methods for heating a handgrip of a vehicle. One system includes a first handgrip including a first heating element and a first temperature sensor and a second handgrip including a second heating element and a second temperature sensor. The system further includes a polarity switching circuit configured to provide power, when active in a first polarity, to the second temperature sensor and provide power, when in a second polarity, to the second heating element. The system includes an electronic processor configured to receive, when the polarity switching circuit is active in the first polarity, a temperature signal from the second temperature sensor, compare the temperature signal to a predetermined threshold, and set, in response to the temperature signal failing to exceed the predetermined temperature threshold, the polarity switching circuit to the second polarity.

The present invention relates to a rapid low-temperature self-heating method and device for a battery. Active controllable large-current lossless short-circuit self-heating cooperates with an external heater to implement rapid composite heating, so that a battery is rapidly heated in a low-temperature environment and is controlled to fall within an optimal working temperature interval, so as to improve energy utilization of the battery and durability of a battery system. Before the battery system is started, battery temperature is first determined; when the temperature is less than a threshold, an external short-circuit is first proactively triggered to generate a large current to implement self-heating inside the battery. The method is simple, easy to implement, and safe and reliable, and can effectively resolve a problem that an electric vehicle has large capacity degradation and poor working performance in a low-temperature severe cold working condition.

A power supply unit for an aerosol inhaler includes: a first series circuit; a second series circuit connected in parallel with the first series circuit; a first operational amplifier including a non-inversion input terminal connected to one of a first node and a second node, and an inversion input terminal connected to the other of the first node and the second node; and an adjustment circuit connected to the first operational amplifier and configured to prevent a differential input value of the first operational amplifier from being equal to a potential of a negative power supply terminal of the first operational amplifier or a minimum value acquirable by the first operational amplifier, in a state where a potential of the node connected to the non-inversion input terminal is less than a potential of the node connected to the inversion input terminal.

A power converter system includes an input rectifier configured to rectify a line power having a line energy and a full-bridge isolating converter comprising a transformer, where the full-bridge isolating converter is configured to generate an isolated output voltage based on the rectified line power, and where the isolated output voltage is electrically isolated from the line energy. The power converter system includes a power controller configured to operate the full-bridge isolating converter to generate the isolated output voltage, determine whether the transformer is operating in a flux walk state based on an electric current of the transformer, and perform a corrective action in response to the transformer operating in the flux walk state.

A self-limiting heater and method for building the self-limiting heater are disclosed. The self-limiting heater consists of a resistor and a PTC resistor coupled together in series with a power supply. Both resistive devices have good thermal coupling. The resistor has a minimal resistance change over changes in temperature while the resistance of the PTC resistor increases with an increase in temperature. The ohmic resistance ratio between the resistor and the PTC may be used to adjust the heater characteristics and limit the characteristic sharpness.

A power converter system provides adjustable power to a heater and includes an input rectifier and a full-bridge isolating converter. The input rectifier is configured to rectify a line power having a line energy. The full-bridge isolating converter configured to generate an isolated output voltage based on the rectified line power. The isolated output voltage is electrically isolated from the line energy.

An electric heating device having a multiplicity of electric heating elements, wherein the respective electric heating element has a first electric contact element and a second electric contact element and at least one heater, wherein the first and second electric contact elements achieve electrical contacting of the at least one electric heater, additionally having a first voltage connection element and a second voltage connection element, additionally having first switching elements and having second switching elements, wherein pairs of two electric heating elements are each wired such that two first electric contact elements in each case of the two electric heating elements can be switchably connected to the first voltage connection element by one of the first switching elements and one of the second contact elements in each case of the pairs can be switchably connected to the second voltage connection element by means of a second switching element.

An engine fluid heating apparatus, preventing failure in heating fluid, is provided. A control device opens a sub switch during an initial opening period (“IOP”) after closing a main switch, and the control device closes the sub switch during an initial closing period (“ICP”) after the IOP. Circuit normality is displayed by turning on an indicator lamp when a heater feeding circuit is electrically conducted via a bypass electric circuit during the IOP. Heater feeding is displayed by turning off the indicator lamp when power is supplied to the electric heater via a trunk electric circuit during the ICP. Circuit abnormality is displayed by turning off the indicator lamp when the heater feeding circuit is not electrically conducted via the bypass electric circuit during the IOP, and the circuit abnormality display is held by keeping the indicator lamp off during the ICP immediately after the IOP.