Perfected electronic counter for periodic variable action. (Machine-translation by Google Translate, not legally binding)

摘要

Electronic counter perfected variable periodic action, essentially characterized in that the built-in electronic circuit, comprises a constituent part of the timing circuit, composed of positive input, a diode.zener and resistance as current stabilizing elements, then having a multiple switch provided with variable resistors with the possibility of regulation, which serves as a selector element for edging, through which it is possible to obtain different readings with a same time, then coupling to this switch, a group of npn type transistors with low impedance output, the current input through the collector of the first transistor, which has an adjustable drain resistance in its emitter and as a means to regulate the magnitude of the trip, this resistance being adjustable to drain, in parallel with a capacitor applied to ground with storage capacity nto, up to a second relay-type transistor, with collector current supply, saving the saw-tooth cycles in the two mentioned transistors, so that, when the third transistor is reached, the cycle is reduced to certain square-wave pulses by the drainage and regulating resistance, and in this way, while the emitter of the third transistor does not receive the zener voltage, it does not act, and therefore the own consumption is null by the square wave, making the connection to the collector of the third transistor, through a relay, freeing the charge of a capacitor, to the electrical impulse counter with zeroing, this relay presenting another set of contacts of two positions that acts in its connection with the contact above, on a capacitor of higher potential than the one described lately, acting in its use, to incorporate the totalizing counter. (Machine-translation by Google Translate, not legally binding)