Siemens Aktiengesellschaft

Sornam Viswanathan Venkateswaran

Eric Chemisky

Siraj Issani

Anand Venkatramani

Suryanarayana Bhamidipati

Joachim Siegrist

Chetan Sharad Deokar

Vijay Kumar Baraiya

Rahul Bhatia

Methods and electronic devices are disclosed for supplying a load with an input voltage including determining a level of a supply voltage. The method includes enabling a voltage step-down unit while disabling a voltage step-up unit when the supply voltage exceeds a first threshold voltage. The method includes enabling a voltage step-up unit while disabling a voltage step-down unit when the supply voltage is below a second threshold voltage. The electronic device includes a voltage step-up unit for stepping up the supply voltage below a first threshold, a voltage step-down unit for stepping down the supply voltage above a second threshold, and a switching unit coupled to the voltage step-up unit and the voltage step-down unit. The switching unit is configured to at least one of enable and bypass at least one of the voltage step-down unit and the voltage step-up unit based on the level of the supply voltage.

Regulating voltage supplied to a load using switching units

An analog output stage of a field device employed in process automation is provided. The analog output stage regulates an analog output, for example, a loop current flowing in a two wire current loop, based on an input, for example, a process variable such as temperature, pressure, etc., detected by the field device. The analog output stage includes a regulator module and a switching module. The switching module, via a switching pulse width modulated signal, alternately applies to the regulator module, a first analog value associated with the input detected by the field device and a predefined analog output, and a second analog value associated with the analog output. The regulator module includes an integrator and a differential amplifier. The regulator module generates a differential analog output based on the first analog value and the second analog value and regulates the analog output based on the differential analog output.

Process automation device

Growing community of inventors

Bengaluru, India

Sornam Viswanathan Venkateswaran