Abstract: In some examples, a device includes a main array of circuit elements representing a main measurement range of parameter values and a test array of circuit elements representing a test measurement range of parameter values, the test measurement range being less than the main measurement range. The device also includes processing circuitry configured to select a portion of the main array of circuit elements representing a partial measurement range, the partial measurement range being less than or equal to the test measurement range. The processing circuitry is also configured to test the portion of the main array of circuit elements using the test array of circuit elements.

Abstract: In some examples, a device includes a main array of circuit elements representing a main measurement range of parameter values and a test array of circuit elements representing a test measurement range of parameter values, the test measurement range being less than the main measurement range. The device also includes processing circuitry configured to select a portion of the main array of circuit elements representing a partial measurement range, the partial measurement range being less than or equal to the test measurement range. The processing circuitry is also configured to test the portion of the main array of circuit elements using the test array of circuit elements.

Abstract: An energy consumption meter includes a first input for providing a first input signal derived from a voltage, a first analog-to-digital (A/D) converter electrically connected to the first input to generate a first output signal based on the first input signal, a second input for providing a second input signal derived from a current, a second A/D converter electrically connected to the second input to generate a second output signal based on the second input signal, a multiplier to combine signals corresponding to the first and second output signals, and a phase evaluation block having two inputs that are electrically connected to the first input and to the second input. The phase evaluation block measures a phase difference that corresponds to a phase difference between the first input signal and the second input signal. A phase correction block corrects for the phase difference in one of the first output signal and the second output signal.

Abstract: An energy consumption meter arrangement is specified which has two inputs (1, 2), to which signals are fed which are dependent on an electrical voltage (V) and an electrical current (I). These signals are digitized in analog-to-digital converters (3, 4) and combined with one another. In order to correct phase differences which may be caused by means for coupling-in the signals (12, 14), a phase evaluation block (9) is coupled to the inputs (1, 2) of the energy consumption meter arrangement. The phase evaluation block (9) drives a phase correction block (6) at the output of an analog-to-digital converter (4). As a result, cost-effective compensation of phase errors is possible with little complexity, which makes DC isolation possible at the input whilst avoiding measurement errors. The described energy consumption meter arrangement is particularly suitable for implementation using integrated circuit technology.