Difference between revisions of "H745 -15V Regulator"
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The '''H745 -15V Regulator''' is one of the [[DEC standard modular regulator]]s. It can produce an output [[current]] of up to 10A at an output [[voltage]] of -15V. It has over-current and over-voltage detection and protection. | The '''H745 -15V Regulator''' is one of the [[DEC standard modular regulator]]s. It can produce an output [[current]] of up to 10A at an output [[voltage]] of -15V. It has over-current and over-voltage detection and protection. | ||
| − | It was a [[switching power supply]], one of the earliest; however, the basic concept was | + | It was a [[switching power supply]], one of the earliest; however, the basic concept was somewhat different from later supplies of this type. It takes as input [[alternating current|AC]] at a [[voltage]] of 20V-30V, runs it through a [[diode]] bridge and filter [[capacitor]] to convert it to [[direct current|DC]]. That is then run through several large [[transistor]]s controlled by a monolithic [[integrated circuit]] [[voltage regulator]] and an [[inductor]] to produce the output. |
| − | It | + | It took its AC input on pins 6 and 8, and it also used +15V input on pins 4 and 5 (why two pins is unclear, since the +15V supply was of limited current); the 15V output was on pin 1, and the [[ground return]] on pins 2 and 3. Pin 7 was not connected. |
| − | + | {{semi-stub}} | |
[[Category: DEC Hardware]] | [[Category: DEC Hardware]] | ||
Revision as of 15:00, 26 September 2018
The H745 -15V Regulator is one of the DEC standard modular regulators. It can produce an output current of up to 10A at an output voltage of -15V. It has over-current and over-voltage detection and protection.
It was a switching power supply, one of the earliest; however, the basic concept was somewhat different from later supplies of this type. It takes as input AC at a voltage of 20V-30V, runs it through a diode bridge and filter capacitor to convert it to DC. That is then run through several large transistors controlled by a monolithic integrated circuit voltage regulator and an inductor to produce the output.
It took its AC input on pins 6 and 8, and it also used +15V input on pins 4 and 5 (why two pins is unclear, since the +15V supply was of limited current); the 15V output was on pin 1, and the ground return on pins 2 and 3. Pin 7 was not connected.
