Diehl Gmbh & Co.

Tilmann Kruger

Werner F Arnold

Alfred Meisner

Erwin Potthof

Hans Grasser

Leonhard Scheumann

Heinz Effenberger

Manfred Barwig

An electronic timer, preferably a kitchen range timer, which includes a control circuit, a display area, input elements, and a switching arrangement which selectively connects an appliance (auto mode) which is operable through the timer directly with a current supply (manual mode). The control circuit is switched into the auto mode through the input of at least one complete switching term, whereby after traversing of the switching terms in the control circuit, the latter is switched into a wait-mode, wherein the appliance which is already separated from the current supply, remains separated from the current supply, and wherein the control circuit which is connected in the wait-mode is switched back into the manual-mode upon the actuation of the manual input element which is provided for this purpose.

Electronic timer

A method and arrangement for entering a switching program into an electronic timer, in particular a kitchen range timer, wherein the switching program consists of at least one switching cycle within a predetermined time range, preferably within 23 hours and 59 minutes. The switching cycle is timely defined through any two of three entities consisting of switching cycle-start, switching cycle-period and switching cycle-end, wherein the entry is effected serially in the form of sequential input pulses, which have an information relative to the setting direction (forward or backwards) associated therewith, and which is preferably counted in a forward-backward counter arrangement. The entry of a first entity for the definition of the switching cycle is limited to a time interval between the actual time and the end of a pregiven first program range, in which upon the entry of the entity switching cycle-start or switching cycle-end there is set with the first input pulses the present entity to a starting value most closely to the present limit of the first program range but within the first program range, and wherein upon the entry of an input pulse with an associated setting direction which would set the value of the present entity outside of the first program range, causes this input pulse to be rendered ineffective or to selectively erase the present entity.

Method for entering a switching program into an electronic timer and

A process and an arrangement for generating control signals in a predeterminable phase position relative to an alternating voltage at an at least short term-stable frequency through the utilization of a higher-frequencied, at least short term-stable auxiliary timing pulse. The process contemplates determining the duration of a presettable number of periods of the alternating voltage, in which there are counted the periods of a first auxiliary timing pulse occurring within this duration; counting the periods of a second auxiliary timing pulse of a different frequency which is correlated over a period of time with the first auxiliary timing pulse; and upon coincidence of the period count of the first and second auxiliary timing pulses, generating the control signal. The circuit arrangement consists of standard digital circuits. In particular, with the utilization of the circuit arrangement within the broader circuit concept, can there be employed an already present synchronizing or timing pulse frequency generation of suitable type inasmuch as, besides the adequate level of the timing pulse frequency, no special requirements are set on the quality of the timing pulse.

Process for generating control signals in a predeterminable phase

A transformerless power unit for an electronic apparatus, preferably a horological instrument, including a fluorescent display, with a compensating resistor network which is connected with one pole of the supply voltage, preferably of a series circuit constituted of an ohmic impedance and a capacitor, with a rectifier diode, with a stabilizer for the stabilization of the output direct voltage, and with a charging capacitor which is connected in parallel with the output.

Transformerless power unit

A resetting circuit for microprocessors which facilitates the operation of a microprocessor even with extensively disrupted supply voltages. For this purpose, in a voltage stabilization circuit for supplying a microprocessor there is monitored the voltage difference between the supply voltage and the operating voltage through a potential difference-controlled flip-flop. This flip-flop generates a resetting signal when the supply voltage has approached its minimum permissible value, in effect, is therebelow. Upon the subsequent rise of the supply voltage, the resetting signal is maintained until there is again reached a predeterminable percentage of the rated value of the supply voltage.

Resetting circuit for microprocessors

An electronic control circuit for the formation of a monostable switching behavior in a bistable relay, including a logic circuit for the conversion of binary input signals into control signals for a switching circuit through which the direction of current flow is reversible within the relay, whereby the relay is switchable at each status change of the input signal. The electronic control circuit includes at least one time pulse generating circuit with an at least single-step divider circuit, wherein the input signal is applied to an interrogating circuit through which first control signals can be generated immediately after each status change of the input signal and in synchronism with a predetermined timing pulse, and in which the switching circuit consists of a bridge circuit controlled by the first control signals, through which the relay is supplied with short power pulses whose polarity can be reversed by the control signals.

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Neunkirchen, Germany

Tilmann Kruger