The DC link supplies six IGBT three phase inverters ( grouped in three sets of two, one set per bogie ), each driving a traction motor.
12.
The power amp included a " long tailed pair " phase inverter, an innovation that noticeably increased the " headroom " or clean power output capability of the amplifier.
13.
Auxiliary electrical supply is taken via a step-down chopper to a 525 V DC supply; there are four ( 380 V max ) three-phase inverters.
14.
However, Goodsell has incorporated a long-tail phase inverter ( also featured on his famous Super 17 ) into the triode sections of the power tubes in the amplifier.
15.
It is Goodsell's latest amplifier and just like the MkIII it features a single gain stage, long-tail phase inverter, as well as the same control surface.
16.
To construct inverters with higher power ratings, two six-step three-phase inverters can be connected in parallel for a higher current rating or in series for a higher voltage rating.
17.
The type of phase inverter circuitry can also affect greatly on softness ( or lack of it ) of clipping : long-tailed pair circuit, for example, has softer transition to clipping than a cathodyne.
18.
Under DC supply ( 3 kV, up to 4 kV peak ) two three-phase inverter blocks are connected in series; each inverter block supplies one set of'half'windings on two parallel connected motors.
19.
The MK11 and Series 3 Amplifiers used a unique pentode phase inverter, which was the result of a joint venture between Dr A R Bailey and Arthur Radford, and was the subject of a detailed article in Wireless World.
20.
In this era Fender experimented with different amplifier designs cathode vs . fixed bias, paraphase vs . cathodyne vs . long-tailed pair phase inverters, octal vs . 9-pin preamp tubes, feedback loops and filter chokes.
