초록 ▼

A bi-directional flyback converter (30), as regulated by control circuitry (34), is used to maintain power from a capacitor (36) to aircraft electronics (20) when power from a ground source through bus (12) is switched by a switching relay (16) to the aircraft source through bus (14). When the aircr

A bi-directional flyback converter (30), as regulated by control circuitry (34), is used to maintain power from a capacitor (36) to aircraft electronics (20) when power from a ground source through bus (12) is switched by a switching relay (16) to the aircraft source through bus (14). When the aircraft is on the ground and prior to engine start up, power is fed through bus (12). Such maintenance of power is necessary during switch-over from the ground to the aircraft power source, to avoid any transitory interruption of power. In operation, once the proper voltage is reached, the circuit turns off, minimizing power consumption. When the input power drops, the bi-directional converter acts as a voltage source, keeping the supply input voltage at a minimum set point by using the energy stored in the capacitor. An anticipation circuit turns on the circuit before power is actually needed so that the response time is instantaneous.

대표청구항 ▼

1. An active energy hold up for enabling power to be continuously supplied to electronics without interruption during power switching of power from one power source to another power source, comprising:an energy storage capacitor; a bi-directional converter; control circuitry coupled to said bi-direc

1. An active energy hold up for enabling power to be continuously supplied to electronics without interruption during power switching of power from one power source to another power source, comprising:an energy storage capacitor; a bi-directional converter; control circuitry coupled to said bi-directional converter and including switches, each arranged to bi-directionally transmit signals; and electrical coupling from said capacitor to the electronics through said bi-directional converter and said control circuitry.