Abstract: A delay control device, a delay control method and an electronic apparatus are provided. The delay control device includes: a trigger port, configured to receive a trigger signal; a first interface; a second interface; a control module, configured to disconnect connection between the first interface and the second interface in response to a case that the trigger port receives the trigger signal; and a timing module, configured to carry out timing for a duration; the control module is further configured to connect the first interface and the second interface in response to a case that the timing module completes timing of the duration. The delay control device can achieve a delay control function, prevent program confusion, improve efficiency and save cost.

Abstract: A signal testing apparatus for a printed circuit board is disclosed which includes a plurality of input terminals for receiving an external testing signal, a plurality of output terminals for supplying the printed circuit board with the external testing signal, a plurality of switches arranged between the plurality of input terminals and the plurality of output terminals for controllably coupling the plurality of input terminals to the plurality of output terminals, an ammeter for measuring a magnitude of a current on a first path provided by the coupling of the plurality of switches, and a voltmeter for measuring a magnitude of a voltage on a second path provided by the coupling of the plurality of switches.

Abstract: A delay control device, a delay control method and an electronic apparatus are provided. The delay control device includes: a trigger port, configured to receive a trigger signal; a first interface; a second interface; a control module, configured to disconnect connection between the first interface and the second interface in response to a case that the trigger port receives the trigger signal; and a timing module, configured to carry out timing for a duration; the control module is further configured to connect the first interface and the second interface in response to a case that the timing module completes timing of the duration. The delay control device can achieve a delay control function, prevent program confusion, improve efficiency and save cost.

Abstract: A signal testing apparatus for a printed circuit board is disclosed which includes a plurality of input terminals for receiving an external testing signal, a plurality of output terminals for supplying the printed circuit board with the external testing signal, a plurality of switches arranged between the plurality of input terminals and the plurality of output terminals for controllably coupling the plurality of input terminals to the plurality of output terminals, an ammeter for measuring a magnitude of a current on a first path provided by the coupling of the plurality of switches, and a voltmeter for measuring a magnitude of a voltage on a second path provided by the coupling of the plurality of switches.